Document Type : Research Article
Authors
1 Department of English, Faculty of Literature and Humanities, Azarbaijan Shahid Madani University, Tabriz, Iran
2 Department of English, Faculty of Multimedia, Tabriz Islamic Art University, Tabriz
Abstract
Keywords
Main Subjects
Introduction
In L2 reading, emotionally laden words or sentences can elicit emotional reactions, which may impact reading speed, comprehension, and memory encoding (Rączy & Orzechowski, 2021). Some research indicates that encountering emotional words may slow down reading speed as learners pause to process the emotional content and engage in cultural implications (El-Dekhs et al., 2023; Tang & Ding, 2024). However, the bulk of research on the processing of positive emotional words attests to the enhanced reading speed by capturing attention and decreasing cognitive load (Knickerbocker et al., 2015; Kuperman et al., 2014; Scott et al., 2012; Sheikh & Titone, 2013, 2016). Overall, the effect of emotion words on reading comprehension in a second language is complex and can vary among individuals and contexts.
It has been suggested that five dimensions of emotional word processing should be accounted for in order to arrive at an overarching view of the effect of emotional words on the comprehension and speed of second language reading (Amini et al., 2022, p. 117). First, word recognition in a contextualized reading task involves a different cognitive processing compared to recognizing words in such behavioral tasks as lexical decision or categorization because the processing of words in a text requires a larger size of higher-order cognitive processes like syntactic parsing and construction of context-adaptive meaning (Kim et al., 2018; Whitford & Titone, 2015). Therefore, emotional word processing has been demonstrated to be task-dependent (e.g., Liao & Ni, 2022).
Second, the type of emotion words along such dichotomies as emotion-laden vs. emotion-label words needs to be accounted for (e.g., Altarriba & Basnight-Brown, 2011; Knickerbocker et al., 2019). The third factor, which is the most well-investigated one, concerns such word features as valence, arousal, frequency, length, concreteness, distinctiveness, predictability, and age of acquisition (El-Dakhs et al., 2023; Knickerbocker
et al., 2015, 2019; Scott et al., 2012; Sereno & Rayner, 2003; Sheikh & Titone, 2016; Wu
et al., 2023; Yao et al., 2024).
Above these three sets of factors are the two reader-related variables. The first variable is the affective state of the reader, including anxiety, depression (Tang & Ding, 2024), and mood (e.g., Sereno et al., 2015). The second factor in this category involves such individual differences as the reader’s vocabulary knowledge (Alshehri & Zhang, 2022), level of proficiency (El-Dakhs & Altarriba, 2018), L2 experience (Whitford & Titone, 2015), and gender (Amini et al., 2022). The fifth set of variables involves textual features, e.g., authentic vs. simplified texts or the position of a word in a sentence (Kim et al., 2018).
While previous research has explored the influence of various word features on emotional word processing in L2 reading, a less understood area is the interplay between these features and the reader’s emotions during reading. Hence, realizing the significance of L2 readers’ psychological states during a reading comprehension task, we intended to examine the combined effects of the reader’s emotional states (mood and state anxiety) and the emotional content of the word being processed (valence and arousal) on word recognition time using eye-tracking technology. The interaction among these constructs is theorized within embodied cognition and bilingual lexical access frameworks, positing that emotional resonance facilitates or hinders word recognition and integration in L2 reading (Tang et al., 2023).
This research can contribute to a more comprehensive understanding of L2 reading, where learners might grapple with both emotional nuances of words and their own emotional state while reading in a non-native language (Tang & Ding, 2024). Moreover, it can inform pedagogical practices by highlighting how educators can consider the emotional content of materials and potentially tailor instruction to address the interplay between reader emotions and word processing. Finally, the findings could contribute to the broader field of reading research by shedding light on the dynamic relationship between emotional language and the reader’s emotional landscape (Leung et al., 2019).
Literature Review
Emotional Word Processing in L2 Reading
Lexical processing is essential for successful L2 reading, influencing speed, comprehension, and overall fluency (Alshehri & Zhang, 2022). According to the Lexical Quality Hypothesis (Perfetti, 2007), inefficient lexical processing increases cognitive load, leaving fewer resources available for comprehension (Perfetti & Stafura, 2014).
A set of well-studied word features that have been considered critical for more efficient and fluent reading includes the word’s frequency, length, familiarity, orthographic regularity, semantic transparency, morphological and phonological complexity, cognateness, and contextual predictability (Kim et al., 2018). Word emotionality is a significant lexical feature that can remarkably affect L2 reading speed and comprehension (El-Dakhs et al., 2023). Word emotionality can enhance attention, memory, comprehension, engagement, and motivation in L2 reading (Ballenghein et al., 2019; Leung et al., 2019; Schacht & Sommer, 2009).
Words’ emotional content has been commonly studied along the two features of valence (positive, negative or neutral in terms of emotional connotations associated with the word) and arousal (intensity or activation level of the emotional content associated with the word) (Russell, 2003). The bulk of research has indicated an emotionality advantage in word processing whereby positive and negative words are processed faster than neutral words (e.g., Arfé et al., 2023; Knickerbocker et al., 2019; Kuperman et al., 2014; Scott et al., 2012; Sheikh & Titone, 2013, 2016).
Despite this overwhelming empirical evidence for emotionality advantage, some studies have reported no processing advantage for positive or negative words compared to neutral words (El-Dakhs et al., 2023; Tang & Ding, 2024). Therefore, the effect of word valence on word recognition in reading must be nuanced. For instance, processing advantage for emotional words can be stronger for highly proficient L2 learners, who have established emotional associations with the words in the second language (El-Dakhs & Altarriba, 2018; Kim et al., 2018). Additionally, word features like frequency and concreteness interact with valence and arousal, influencing the recognition speed (Yao et al., 2024; Knickerbocker
et al., 2015; Scott et al., 2012; Sheikh & Titone, 2013, 2016). These studies have consistently shown that the processing advantage for positive and negative words is witnessed only for low-arousal words. Theoretically, the anxiety level associated with high-arousal words impedes valence effects in the faster processing of positive or negative words over neutral ones. Furthermore, research indicates an interaction between arousal and valence during language processing (El-Dakhs et al., 2023; Citron et al., 2012; Knickerbocker et al., 2015; Scott et al., 2012; Tang & Ding, 2024). However, Kuperman et al. (2014) reported the absence of interaction between valence and arousal.
The results of studies focusing on emotion word processing in contextualized reading tasks have been varied (Amini et al., 2022; El-Dakhs & Altarriba, 2019; El-Dakhs et al., 2023; Knickerbocker et al., 2015; Scott et al., 2012; Tang & Ding, 2024). These studies provide empirical support for the notion that emotion words can have both positive and negative effects on L2 reading, depending on other word features, the nature of the task, the type of text, the emotional state of the reader, and other individual difference factors (Amini et al., 2022; Kim et al., 2018; Liao & Ni, 2022).
Effect of Reader’s Emotional State on Emotional Word Processing
Readers’ Emotional states can influence the cognitive resources available for reading. Positive emotions can reduce cognitive load, making it easier to process and understand the text (Fredrickson, 2001; Leung et al., 2019), while negative emotions can increase cognitive load, making it harder to concentrate and process information (MacIntyre & Gardner, 1994). Mood influences such cognitive processes as attention, memory, and comprehension, which, in turn, affect language processing. Neuroscientific evidence from ERP studies attests to distinctive neural correlates involved in the processing of positive, negative, and neutral words during positively and negatively induced mood (Citron, 2012; Kissler & Bromberek-Dyzman, 2021). Studies generally find minimal or inconsistent correlations between mood or state anxiety and eye-tracking indices during L2 reading of emotional words (El-Dakhs et al., 2023; Tang & Ding, 2024). The emotional facilitation effect appears independent of anxiety or depression status in L1 but less so in L2 (Knickerbocker et al., 2015; El-Dakhs et al., 2023). Some findings suggest that individual affective states can modulate reading strategies or emotional word processing, especially positive mood-enhancing self-efficacy and global reading strategies (Leung et al., 2019).
Interaction Between Word Emotionality and Reader’s Affective State
One of the earliest attempts to address the interactive relationship between word emotionality and the subjects’ induced mood in lexical perception was Small (1985). The study intended to substantiate Gerrig and Bower’s theory of Mood Congruency Effect (Gerrig & Bower, 1982), according to which there is a speed-up in perception when the emotional stimulus is congruent with the processor’s mood state. The results of this pioneering research indicated no difference between participants with depressive symptoms and those with a neutral depression state. However, subjects with induced depression recognized congruent depressing words more rapidly than neutral words. Although this finding was in line with Gerrig and Bower (1982), it must be noted that the study simply measured low-level perception thresholds in recognizing the stimulus words. The succeeding research focusing on higher-level cognitive word processing came up with different results.
Sereno et al. (2015) examined the effects of induced mood on emotional and neutral language perception. Although positive and negative moods facilitated the processing of emotion words, they did not function in accordance with mood congruency. In a recent study, Naranowicz et al. (2023) studied the interaction between word valence, induced mood, and gender in an emotive decision task in L1 and L2. The results indicated that L1 neutral words and L2 positive words were processed faster only when the participants were in a positive mood. Positive and negative words were processed faster compared to neutral words, regardless of gender and language of operation.
Kissler and Bromberek-Dyzman (2021) demonstrated that the interaction between mood and valence/arousal depends on the stage of word processing: Mood-congruent effects were found at the early perceptual processing, while mood incongruent effects were witnessed during higher-order evaluative processing.
Knickerbocker et al. (2015) measured their participants’ depression and anxiety with BDI and STAI, respectively, to probe into any possible relationship between word valence and learners’ psychological states. They were unable to demonstrate an interaction effect between positive valence and learners’ level of depression or anxiety. Nevertheless, an interaction was found between negative valence and anxiety. Learners with higher anxiety appeared to process negative words faster. No interaction was witnessed between negative valence and depression. Surprisingly, in a similar research design, El-Dakhs et al. (2023) studied the interplay between word valence and arousal on the one hand, and depression and anxiety of the processor, on the other, coming up with absolutely contrasting results from Knickerbocker et al.’s. They showed an interaction effect between positive valence and depression but no main or interaction effect between positive valence and anxiety. They also reported the absence of interaction between negative words and depression or anxiety.
In a recent study, Tang and Ding (2024) followed Knickerbocker et al. (2015) and
El-Dakhs et al. (2023) in probing into word emotionality and the processor’s emotionality in natural sentence reading. They were unable to demonstrate any robust effect for the anxious and depressive states of the participants in processing emotional words. These studies suggest that both emotional states of the reader and emotional content of words can play a critical role in L2 reading dynamics. The findings support the idea that emotional states can significantly impact L2 reading processes.
Based on the reviewed research, the present study investigated how mood can modulate the cognitive processes involved in reading and processing emotional lexicon. The following seven research questions guided the research:
Methods
Design
The study employed a mixed Between-Within-Subjects experimental design to examine the processing of emotion-laden words in natural L2 reading. Simultaneous effects of two features of emotional words (valence and arousal) as the within-subject variables and two variables indicating L2 readers’ emotional state (state anxiety and perceived mood) as the between-subject variables on the time assumed to be allotted for recognizing the target words (total eye fixation time) were investigated. Eye-tracking technology was utilized to capture real-time data on gaze durations during reading tasks.
Participants
Forty-four intermediate-level English learners (21 males, 23 females; age range: 20–30 years), selected from among the students of Arts and Engineering at the Multimedia Faculty of Tabriz Islamic Art University on a convenience sampling basis, participated in the study. The participants met the following criteria:
An initial sample of 68 students took a Preliminary English Test (PET), the aim of which was to assess their reading proficiency and ensure homogeneity. Based on the results of PET, a sample of 48 students with scores of 1 SD above and below the mean was selected for the experiment. The data from the eye movements of four participants (1 male and 3 females) were left out of the analysis because they lost track during the experiment. Thus, the number of participants was reduced to 44.
Apparatus
A Tobii TX300 eye-tracker recorded participants’ eye movements at a sampling rate of 300 Hz. In this research, the readers’ gaze duration (Total eye fixation time on each word) made up the main data. The eye-tracking device employed in this study did not use glasses or a chinrest to attach to the participants; therefore, the experiment ran as a natural reading activity. The device was calibrated for each participant to ensure accuracy. Calibration indicated that an average of 1000 frames reported as the outlet equaled 1 second. Therefore, the collective sum of frames for each target word was considered as the total Gazing Time (GT) in milliseconds for that word.
Instruments and Materials
Preliminary English Test: The reading section of a PET archive test was used to measure the participants’ general reading proficiency. The test, which consisted of 5 comprehension passages with a total of 35 comprehension questions, was considered appropriate for the purpose of this study as the stimulus here involved reading comprehension.
The Positive and Negative Affect Schedule (PANAS; Watson et al., 1988) measured the participants’ perceived mood. The scale was rated on a 7-point Likert scale. The cut point for determining positive/negative mood states was set at 3.5.
State-Trait Anxiety Inventory: The participants’ state anxiety was gauged by the State part of Spielberger’s (1989) Y-Form of State-Trait Anxiety Inventory (STAI). The scale has been used not only for clinical purposes but also for other research situations as an indicator of distress (Spielberger et al., 1983). It contains 40 items in a 4-point Likert scale, 20 of which are for state anxiety. The scores ranged from 20 to 80 for each participant, with higher scores indicating a higher level of anxiety.
Target Words: The emotion-laden words selected for the purpose of this research needed to be categorized based on their emotional valence (positive, negative, or neutral) and arousal (high vs. low). Therefore, 36 words, i.e., (6+6+6) ×2, were selected from the list of ANEW (Affective Norms for English Words, Bradley & Lang, 1999). Arousal values in ANEW range from 1 (low) to 9 (high) in accordance with the British National Corpus (http://www.natcorp.ox.ac.uk/). The valence values of the selected words ranged from 1-3 (negative), 3-6 (neutral), and 6-9 (positive). The valence and arousal attributions of the target words have been displayed in Table 1.
Table 1. Target words by Valence and Arousal
|
Valence |
High Arousal |
Low Arousal |
|
Positive |
famous (6.98, 5.73)/ desire (7.69, 7.35) joyful (8.22, 5.98)/ (health (6.81, 5.13) cheer (8.1, 6.12)/ inspired (7.5, 6.02) |
dream (6.73, 4.53)/ truth (7.80, 5) idol (6.12, 4.95)/ easygoing (7.2, 4.3) adult (6.49, 4.76)/ bliss (6.95, 4.41) |
|
Negative |
tense (3.56, 6.53)/ insecure (2.36, 5.56) fights (3.76, 7.15)/ troubles (3.3, 6.85) crisis (2.74, 5.44)/ pain (2.13, 6.5) |
alone (2.41, 4.83)/ slow (3.93, 3.39) hinder (3.81, 4.12)/ idiot (3.16, 4.21) loser (2.25, 4.51)/ moody (3.20, 4.18) |
|
Neutral |
chance (6.02, 5.38) / news (5.30, 5.17) rough (4.74, 5.33) / anxious (4.81, 6.92) noisy (5.02, 6.38) / highway (5.92, 5.16) |
quiet (5.58, 2.94) / methods (5.56, 3.85) gender (5.73, 4.38) / modest (5.76, 3.98) customs (5.83, 4.65) / detail (5.55, 4.1) |
1-4: Negative valence, 4.01-6: Neutral Valence, 6.01-9: Positive valence
5>Low arousal, 5.01< High arousal,
Reading Materials
The study utilized 36 sentences, each embedding a target word with varied emotional valence (positive, negative, neutral) and arousal (high, low). The sentences were controlled for length, complexity, and word frequency to ensure uniformity. The stimulus reading task involved two short texts, each made up of 18 sentences, each including one of the target words. The reading task involved reading 8 slides (4 slides for each text). The target words appeared in the middle of the sentences on each slide to control the sentence location effect (Conklin & Pellicer-Sánchez, 2016).
Procedure
In this experiment, initially, an announcement was circulated at the university to attract volunteers for the study. Following the administration of the reading proficiency test, a sample of 44 students made up the ultimate participants. The participants were tested individually. The participants completed the PANAS and STAI to establish baseline mood and anxiety levels before the reading task. Then the participants were asked to read the two reading passages within the given time and answer the 5 comprehension questions following each reading passage. During reading, their eye fixations were recorded. The participants were kept naïve to the purpose of the research in order to prevent emotional interference. Following the reading task, participants rated the emotional intensity and valence of target words, which was used to ensure alignment with intended valence and arousal categorizations.
Data Analysis
The design involved 3 (Valence: Positive, Negative, Neutral) × 2 (Arousal: LA, HA) × 2 (Mood: Positive, Negative; or Anxiety: High and Low) between-within factorial design. The data were analyzed by conducting 1) a two-way repeated-measures ANOVA to investigate the main and interaction effects of word arousal and valence, and 2) two separate three-way between-within-subjects repeated measures ANOVA on SPSS in order to determine the main and interaction effects of readers’ mood and anxiety, on the one hand, and word valence and arousal, on the other. While the type of target words along the two variables of valence and arousal made up the within-subject factors, the participants’ anxiety and mood were considered as the between-subject variables.
Results
Descriptive Statistics and Preliminary Analyses
The mean Gazing Time (GT) and standard deviations (SD) for all 36 target words, aggregated across the 44 participants, were calculated for each word-level independent variable, i.e., positive valence (PV), negative valence (NV), neutral (NeutV) as well as arousal features of high arousal (HA) and low arousal (LA) are displayed in Table 2 below.
Table 2. Eye-Fixation Time Across Valence and Arousal Properties of Target Words
|
|
N |
Minimum |
Maximum |
Mean |
SD |
|
Positive Words' Gazing Time |
44 |
80 |
540 |
248.14 |
106.471 |
|
Negative Words' Gazing Time |
44 |
50 |
640 |
240.00 |
113.895 |
|
Neutral Words' Gazing Time |
44 |
40 |
460 |
213.36 |
89.305 |
|
High Arousal Gazing Time |
44 |
80 |
450 |
229.32 |
96.939 |
|
Low Arousal Gazing Time |
44 |
40 |
550 |
250.45 |
106.857 |
|
Valid N (listwise) |
44 |
|
|
|
|
Overall, neutral words elicited the shortest mean GT (213.36 ms), indicating the fastest processing time. In comparison, both positive words and negative words received comparatively longer GTs. For the arousal dimension, high arousal words (229.32 ms) received descriptively shorter mean GTs than low arousal words (250.45 ms).
Table 3 presents the descriptive statistics (M, SD) for GTs disaggregated by the reader's mood and the six word-type combinations (Valence*Arousal).
Table 3. Eye-Fixation Time of Target Words Across Readers’ Perceived Mood States, and the Target Words’ Valence and Arousal
|
|
Reader's Mood |
Mean |
Std. Deviation |
N |
|
Positive High Arousal |
Positive Mood |
172.50 |
70.103 |
20 |
|
Negative Mood |
253.46 |
111.909 |
24 |
|
|
Total |
216.66 |
102.630 |
44 |
|
|
Positive Low Arousal |
Positive Mood |
248.00 |
133.164 |
20 |
|
Negative Mood |
332.58 |
131.090 |
24 |
|
|
Total |
294.14 |
137.267 |
44 |
|
|
Negative High Arousal |
Positive Mood |
230.45 |
161.008 |
20 |
|
Negative Mood |
265.50 |
205.035 |
24 |
|
|
Total |
249.57 |
185.074 |
44 |
|
|
Negative Low Arousal |
Positive Mood |
210.50 |
137.515 |
20 |
|
Negative Mood |
267.50 |
112.143 |
24 |
|
|
Total |
241.59 |
126.122 |
44 |
|
|
Neutral High Arousal |
Positive Mood |
186.00 |
77.283 |
20 |
|
Negative Mood |
276.25 |
115.751 |
24 |
|
|
Total |
235.23 |
108.959 |
44 |
|
|
Neutral Low Arousal |
Positive Mood |
158.55 |
84.137 |
20 |
|
Negative Mood |
242.13 |
120.841 |
24 |
|
|
Total |
204.14 |
112.741 |
44 |
As visualized in Figure 1, a consistent trend emerges from the data in Table 3. The mean GTs for the positive mood group are consistently lower across all six word types compared to the negative mood group, strongly suggesting a potential main effect of mood.

Figure 1. Comparing Means of Eye Fixation Time of 5 Types of Emotional Words in relation to Mood State
Similarly, the descriptives of the gazing time of the target words disaggregated by state anxiety levels of participants are shown in Table 4 and Figure 2.
Table 4. Eye-Fixation Time of Target Words Across Readers’ Perceived State Anxiety and Words’ Valence and Arousal
|
|
Reader's State Anxiety |
Mean |
Std. Deviation |
N |
|
Positive High Arousal |
Low |
208.85 |
102.813 |
26 |
|
High |
227.94 |
104.254 |
18 |
|
|
Total |
216.66 |
102.630 |
44 |
|
|
Positive Low Arousal |
Low |
285.85 |
142.241 |
26 |
|
High |
306.11 |
132.848 |
18 |
|
|
Total |
294.14 |
137.267 |
44 |
|
|
Negative High Arousal |
Low |
225.12 |
173.244 |
26 |
|
High |
284.89 |
200.662 |
18 |
|
|
Total |
249.57 |
185.074 |
44 |
|
|
Negative Low Arousal |
Low |
240.38 |
145.175 |
26 |
|
High |
243.33 |
96.100 |
18 |
|
|
Total |
241.59 |
126.122 |
44 |
|
|
Neutral High Arousal |
Low |
218.46 |
105.932 |
26 |
|
High |
259.44 |
111.697 |
18 |
|
|
Total |
235.23 |
108.959 |
44 |
|
|
Neutral Low Arousal |
Low |
186.31 |
83.700 |
26 |
|
High |
229.89 |
143.735 |
18 |
|
|
Total |
204.14 |
112.741 |
44 |
Low Anxiety. (20-50), High Anxiety: (50.01-80)
In contrast to the mood data, no clear, consistent pattern emerges from the state anxiety data, as also visualized in Figure 2. For some word types (e.g., Positive Low Arousal), high anxiety is associated with slightly slower processing (=306.11 ms) than low anxiety
(=285.85 ms), while for others (e.g., Negative Low Arousal), the means are very close (=243.33 ms vs.=240.38 ms, respectively).

Figure 2. Comparing Means of Eye Fixation Time of 5 Types of Emotional Words in relation to State Anxiety Level
The results of the Kolmogorov-Smirnov test (Table 5) indicated that the assumption of normality was met for the GT scores across all conditions (p >.05).
Table 5. Results of the Kolmogorov-Smirnov Test to Check the Normality of Scores
|
|
Reader's Mood |
Kolmogorov-Smirnova |
|
||
|
Statistic |
df |
Sig. |
|
||
|
Positive Words' Gazing Time |
Positive |
.126 |
20 |
.200* |
|
|
Negative |
.155 |
24 |
.141 |
|
|
|
Negative Words' Gazing Time |
Positive |
.178 |
20 |
.095 |
|
|
Negative |
.106 |
24 |
.200* |
|
|
|
Neutral Words' Gazing Time |
Positive |
.213 |
20 |
.058 |
|
|
Negative |
.113 |
24 |
.200* |
|
|
|
High Arousal Gazing Time |
Positive |
.171 |
20 |
.128 |
|
|
Negative |
.176 |
24 |
.053 |
|
|
|
Low Arousal Gazing Time |
Positive |
.132 |
20 |
.200* |
|
|
Negative |
.125 |
24 |
.200* |
|
|
|
* This is a lower bound of the true significance. |
|||||
|
a Lilliefors Significance Correction |
|||||
Effects of Valence, Arousal, and Their Interaction on Word Recognition Time
To address the research questions 1, 2, and 3, a 3 (Valence: Positive, Negative, Neutral) by 2 (Arousal: High, Low) two-way ANOVA was conducted. Two-way analysis of variance upholds the assumption of sphericity in addition to the normality of scores presented above. Mauchly's Test of Sphericity (Table 6) was non-significant for the main effect of Valence (W=.979, p=.652). However, it was significant for the Valence× Arousal interaction (W=.509, p<.001).
Table 6. Mauchly's Test of Sphericity
|
Mauchly's W |
Approx. Χ² |
df |
p-value |
Greenhouse-Geisser ε |
Huynh-Feldt ε |
Lower Bound ε |
|
|
Valence |
0.972 |
1.213 |
2 |
0.545 |
0.972 |
1.000 |
0.500 |
|
Valence ✻ Arousal |
0.511 |
28.177 |
2 |
< .001 |
0.672 |
0.685 |
0.500 |
Consequently, the degrees of freedom for this interaction were corrected using the Greenhouse-Geisser adjustment to avoid inflating the Type I error rate (Table 7).
RQ1 (Valence Effect)
The analysis revealed a statistically significant main effect of valence on Gazing Time, as shown in Table 9 (p = 0.035, η²= 0.076, F = 3.534).
Table 7. Results of Two-Way ANOVA for effects of Valence and Arousal
|
Source |
Type III Sum of Squares |
df |
Mean Square |
F |
Sig. |
Partial Eta Squared |
|
|
Valence |
Sphericity Assumed |
59919.644 |
2 |
29959.822 |
3.534 |
.034 |
.076 |
|
Greenhouse-Geisser |
59919.644 |
1.945 |
30812.850 |
3.534 |
.035 |
.076 |
|
|
Arousal |
Sphericity Assumed |
10818.561 |
1 |
10818.561 |
1.090 |
.302 |
.025 |
|
Greenhouse-Geisser |
10818.561 |
1.000 |
10818.561 |
1.090 |
.302 |
.025 |
|
|
Valence * Arousal |
Sphericity Assumed |
143907.644 |
2 |
71953.822 |
7.027 |
.001 |
.140 |
|
Greenhouse-Geisser |
143907.644 |
1.343 |
107120.427 |
7.027 |
.006 |
.140 |
|
The highest gazing time was observed for the negative emotional words. The results of post-hoc analysis in Table 8 show that words with neutral emotional valence were processed significantly faster than the words with both positive and negative valence since neutral words indicated a lower GT. However, the difference between positive and negative-valenced words was not significant.
Table 8. Pairwise Comparisons for Valence Effect
|
(I) Valence |
(J) Valence |
Mean Difference (I-J) |
Std. Error |
Sig.b |
95% Confidence Interval for Differenceb |
|
|
Lower Bound |
Upper Bound |
|||||
|
Positive |
Negative |
9.818 |
14.494 |
.502 |
-19.412 |
39.048 |
|
Neutral |
35.716* |
12.657 |
.007 |
10.191 |
61.241 |
|
|
Negative |
-25.898 |
14.414 |
.079 |
-54.967 |
3.171 |
|
|
Based on estimated marginal means |
||||||
|
*. The mean difference is significant at the .05 level. |
||||||
|
b. Adjustment for multiple comparisons: Least Significant Difference (equivalent to no adjustments). |
||||||
RQ2 (Arousal Effect)
The main effect of Arousal was not statistically significant (F=1.09, P = 0.302, η²=.025). This indicates that, when collapsed across valence and mood, the arousal level of a word does not independently affect L2 word recognition time.
RQ3 (Interactional Effects of Valence and Arousal)
The analysis revealed a statistically significant two-way interaction between valence and arousal (F=7.027, p=.006, η²=.140). This significant interaction indicates that the effect of a word's valence on recognition time is dependent on its arousal level. Post-hoc pairwise comparisons (Table 9) revealed that the interaction is driven almost entirely by the Positive Low-Arousal (Pos-LA) word category.
Table 9. Post Hoc Comparison of Valence * Arousal
|
Mean Difference |
SE |
t |
Cohen's d |
pholm |
|||
|
Positive, Low |
Negative, Low |
52.545 |
22.775 |
2.307 |
0.399 |
0.311 |
|
|
Neutral, Low |
90.000 |
19.339 |
4.654 |
0.683 |
< .001 |
*** |
|
|
Positive, High |
77.477 |
17.659 |
4.387 |
0.588 |
0.001 |
** |
|
|
Negative, High |
44.568 |
23.505 |
1.896 |
0.338 |
0.582 |
||
|
Neutral, High |
58.909 |
18.381 |
3.205 |
0.447 |
0.033 |
* |
|
|
Negative, Low |
Neutral, Low |
37.455 |
18.638 |
2.010 |
0.284 |
0.508 |
|
|
Positive, High |
24.932 |
16.994 |
1.467 |
0.189 |
1.000 |
||
|
Negative, High |
-7.977 |
29.601 |
-0.269 |
-0.061 |
1.000 |
||
|
Neutral, High |
6.364 |
16.486 |
0.386 |
0.048 |
1.000 |
||
|
Neutral, Low |
Positive, High |
-12.523 |
16.725 |
-0.749 |
-0.095 |
1.000 |
|
|
Negative, High |
-45.432 |
28.160 |
-1.613 |
-0.345 |
0.912 |
||
|
Neutral, High |
-31.091 |
13.926 |
-2.233 |
-0.236 |
0.339 |
||
|
Positive, High |
Negative, High |
-32.909 |
25.853 |
-1.273 |
-0.250 |
1.000 |
|
|
Neutral, High |
-18.568 |
12.449 |
-1.492 |
-0.141 |
1.000 |
||
|
Negative, High |
Neutral, High |
14.341 |
22.115 |
0.648 |
0.109 |
1.000 |
|
|
* p < .05, ** p < .01, *** p < .001 |
|||||||
|
Note. P-value adjusted for comparing a family of 15 |
|||||||

Figure 3. Interaction Between Valence and Arousal
No other comparisons involving negative words reached statistical significance. It was not all positive words that caused a processing delay, but specifically Positive Low-Arousal words (e.g., dream, truth, and bliss) that uniquely and significantly slowed L2 readers' recognition time.
Main and Interaction Effects of Mood
To address the research questions concerning word emotionality and the reader's mood
(RQs 4 and 5), a 3 (Valence: Positive, Negative, Neutral) by 2 (Arousal: High, Low) by 2 (Mood: Positive, Negative) three-way mixed-effects ANOVA was conducted. This test requires the assumptions of normal distribution, normality of variances, and sphericity of within-subject variables which were already ascertained with the previous test of ANOVA. Two additional assumptions of mixed between-within-subjects RM-ANOVA are the homogeneity of variances and equality of covariances. Levene's Test of Equality of Error Variances (Table 10) was non-significant for all levels of the dependent variable (p>.05), indicating that the assumption of homogeneity of variances for the between-subjects factor (Mood) was met.
Table 10. Levene’s Test of Equality of Error Variances
|
Levene Statistic |
df1 |
df2 |
Sig. |
|
|
Positive High Arousal |
3.136 |
1 |
42 |
.084 |
|
Positive Low Arousal |
.012 |
1 |
42 |
.914 |
|
Negative High Arousal |
.944 |
1 |
42 |
.337 |
|
Negative Low Arousal |
.080 |
1 |
42 |
.779 |
|
Neutral High Arousal |
3.836 |
1 |
42 |
.057 |
|
Neutral Low Arousal |
2.301 |
1 |
42 |
.137 |
Box's Test of Equality of Covariance Matrices uses a significance level of α = .001. The index was larger than α (Box's M = 46.806, F (21, 6024.583) = 1.880, p=.009), which attests to the rejection of the null hypothesis regarding the absence of equality of covariances.
Mauchly's Test of Sphericity (Table 8) was non-significant for the main effect of Valence (W=.979, p=.652). However, it was significant for the Valence*Arousal interaction (W =.509, p<.001). Consequently, the degrees of freedom for this interaction were corrected using the Greenhouse-Geisser adjustment.
The mood effect was significant at the 95% probability level (p = 0.013, η²= 0.072,
F = 6.761). Readers perceiving themselves in a positive mood (N=20) demonstrated a faster overall recognition of words regardless of words’ emotional properties (Table 11).
Table 11. Effect of Mood on Word Recognition Time in L2 Reading
|
Cases |
Sum of Squares |
df |
Mean Square |
F |
p |
η² |
|
Mood |
338400.619 |
1 |
338400.619 |
6.761 |
0.013 |
0.072 |
|
Residuals |
2.102×10+6 |
42 |
50051.896 |
|
|
|
All other interactions involving the reader's mood were non-significant (Table 12). The interaction effect of valence and mood was not significant (p = 0.274, η²= 0.005, F = 1.313). The lack of a Valence-Mood interaction is a critical finding for RQ5. It fails to support the Mood Congruency Effect. Instead, the data support a main effect of mood that is independent of the word's specific emotional content; positive mood facilitates processing globally.
Table 12. Results of Mixed ANOVA for Effects of Mood, Valence, and Arousal
|
Cases |
Sum of Squares |
df |
Mean Square |
F |
p |
η² |
|
Valence |
61844.571 |
2 |
30922.286 |
3.674 |
0.035 |
0.013 |
|
Valence ✻ Mood |
22103.253 |
2 |
11051.627 |
1.313 |
0.274 |
0.005 |
|
Residuals |
706996.103 |
84 |
8416.620 |
|
|
|
|
Arousal |
10254.564 |
1 |
10254.564 |
1.011 |
0.320 |
0.002 |
|
Arousal ✻ Mood |
649.473 |
1 |
649.473 |
0.064 |
0.801 |
1.384×10-4 |
|
Residuals |
426040.300 |
42 |
10143.817 |
|
|
|
|
Valence ✻ Arousal |
142595.839 |
2 |
71297.919 |
6.818 |
0.002 |
0.030 |
|
Valence ✻ Arousal ✻ Mood |
2293.248 |
2 |
1146.624 |
0.110 |
0.896 |
4.888×10-4 |
|
Residuals |
878362.775 |
84 |
10456.700 |
|
|
|
Arousal-Mood interaction was not significant either (Figure 4). That is, there was no significant difference in the amount of eye gazing time in different combinations of arousal and mood.

Figure 4. Estimated Marginal Means of Words’ Arousal Levels Across Readers’ Positive and Negative Mood
The three-way Valence-Arousal-Mood interaction was also not significant (F= 0.110,
p =.896).
Main and Interaction Effects of State Anxiety
To address the research questions concerning word emotionality and the reader's state anxiety (RQs 6 and 7), a second 3 (Valence: Positive, Negative, Neutral) by 2 (Arousal: High, Low) by 2 (State Anxiety: High, Low) three-way mixed-effects ANOVA was conducted. The following assumptions were tested:
The results of the second mixed ANOVA are presented in Table 13. According to the table, there is no significant difference in the amount of eye gazing time between low and high levels of Anxiety.
Table 13. Effect of State Anxiety on Word Recognition Time in L2 Reading
|
Cases |
Sum of Squares |
df |
Mean Square |
F |
p |
η² |
|
Anxiety |
61758.384 |
1 |
61758.384 |
1.090 |
0.302 |
0.013 |
|
Residuals |
2.379×10+6 |
42 |
56638.616 |
|
|
|
Unlike mood, the reader's level of state anxiety did not have a global effect on L2 word recognition time, which is consistent with the descriptive data in Figure 2. All other interactions involving state anxiety were non-significant, addressing RQ7 (Table 14).
Table 14. Results of Mixed ANOVA for Effects of State Anxiety, Valence, and Arousal
|
Cases |
Sum of Squares |
df |
Mean Square |
F |
p |
η² |
|
Valence |
51905.859 |
2 |
25952.930 |
3.013 |
0.055 |
0.011 |
|
Valence ✻ Anxiety |
5434.875 |
2 |
2717.437 |
0.315 |
0.730 |
0.001 |
|
Residuals |
723664.481 |
84 |
8615.053 |
|
|
|
|
Arousal |
7998.431 |
1 |
7998.431 |
0.797 |
0.377 |
0.002 |
|
Arousal ✻ Anxiety |
4990.840 |
1 |
4990.840 |
0.497 |
0.485 |
0.001 |
|
Residuals |
421698.933 |
42 |
10040.451 |
|
|
|
|
Valence ✻ Arousal |
143972.420 |
2 |
71986.210 |
6.963 |
0.002 |
0.031 |
|
Valence ✻ Arousal ✻ Anxiety |
12225.011 |
2 |
6112.506 |
0.591 |
0.556 |
0.003 |
|
Residuals |
868431.011 |
84 |
10338.464 |
|
|
|
This set of null findings indicates that, within this study's design, the processing of emotional words (both valence and arousal) is not modulated by the reader's state anxiety.
Discussion
This study aimed to investigate the complex interplay between word-level emotional features (valence and arousal) and reader-level affective states (mood and state anxiety) on L2 word recognition time, as measured by eye-gazing time. The findings reveal a processing pattern that both challenges and supports existing literature. The primary findings are: (1) a significant main effect of valence, characterized by a processing cost for positive words relative to neutral words; (2) a significant main effect of mood, where a positive mood facilitated faster global processing; (3) a robust Valence-Arousal interaction, which specified that the processing cost for positive words was driven entirely by positive low-arousal words; and (4) a notable absence of any main effect for arousal or state anxiety, and a lack of any interaction effects involving mood or anxiety.
The first research question asked if valence affects L2 word recognition. The analysis confirmed a significant main effect of valence. However, contrary to the emotionality advantage reported in much of the literature—where both positive and negative words are processed faster than neutral ones (e.g., Knickerbocker, 2015; Kuperman et al., 2014; Scott
et al., 2012; Sheikh & Titone, 2013, 2016)—this study found a positive valence processing cost. This finding aligns with other studies that have also failed to find a simple emotionality advantage (e.g., Amini et al., 2022; El-Dakhs et al., 2023; Tang & Ding, 2024).
This main effect was powerfully qualified by the significant Valence × Arousal interaction. The data revealed that the processing cost was not due to positive words in general, but was specifically and robustly driven by positive low-arousal words (e.g., dream, truth, bliss). This finding is in line with Tang and Ding (2024) but in contrast with El-Dakhs et al. (2023). Positive low-arousal words impose a processing burden. A plausible explanation is that these words, which are often more abstract and conceptually complex (e.g., bliss, truth), demand deeper cognitive engagement and semantic integration than concrete high-arousal words (e.g., famous, cheer) or neutral words. While many high-arousal negative words (e.g., pain, crisis) may be processed quickly due to their direct threat-relevance, abstract positive concepts may require more elaborate, time-consuming cognitive operations for an L2 reader to fully activate and integrate their meaning within the sentence context
(Yao et al., 2024).
Arousal did not have a significant main effect on recognition time. This indicates that it was not a key factor. Instead, the role of word intensity was purely interactive, serving to moderate the effect of valence. This supports the body of research that points to an inevitable interaction between valence and arousal in word processing (e.g., El-Dakhs et al., 2023; Scott et al., 2012), while challenging Knickerbocker et al. (2015) and Kuperman et al. (2014),
who reported an absence of this interaction.
Regarding the reader's mood, this study yielded a robust finding, a significant main effect of mood regardless of the words' valence or arousal. This result strongly supports theories that link positive affect to more efficient cognitive processing, such as Fredrickson's (2001) broaden-and-build theory, or the proposal by Leung et al. (2019) that positive states enhance global reading strategies and reduce cognitive load.
The present study found no evidence for a Valence × Mood interaction, which directly challenges the Mood Congruency Effect (Gerrig & Bower, 1982). This finding is in agreement with Sereno et al. (2015), who also found that mood facilitated emotional word processing but not in a strictly congruent manner. The data suggest that for L2 reading, the benefit of a positive affective state is not specific, but rather a global enhancement of cognitive processing.
This study revealed no main effect of state anxiety on L2 word recognition time. Furthermore, there were no significant interactions between state anxiety and either valence or arousal. This set of null findings is consistent with the descriptive data, which showed no clear pattern, and aligns with a significant portion of the recent literature. For instance, Tang and Ding (2024) were similarly unable to demonstrate any robust effect for the anxious and depressive states of the participants in processing emotional words. While Knickerbocker
et al. (2015) found that higher anxiety sped up the processing of negative words, this study (like El-Dakhs et al., 2023) found no such interaction. For the cohort of L2 learners in this study, a general feeling of state anxiety did not modulate the cognitive processing of emotional words. This may suggest that the "baseline" cognitive load of L2 reading (Kim
et al., 2018) is already substantial, and the reader's self-perceived affective state (as measured by STAI) may not be a powerful enough factor to further modulate the specific, online processing of emotion-laden words.
Conclusion
This study contributes two primary findings to the field of L2 emotional word processing. First, the effect of valence is not a simple advantage but is moderated by arousal, with positive low-arousal (often abstract) words creating a unique processing cost for L2 readers. Second, a reader's mood has a global effect, with positive mood facilitating faster processing of all words, whereas state anxiety appears to have no significant impact.
These findings have significant implications for L2 reading and vocabulary acquisition. The "positive valence cost" suggests that educators cannot assume that positive words are inherently easier or more motivating. Abstract positive words may, in fact, be harder to process and require more explicit instruction and contextual support than neutral or even high-arousal negative words. Furthermore, the findings on reader-level affect are plausible. This study underscores that for L2 learners, positive affect appears to broaden attention and reduce overall cognitive load, facilitating the difficult task of reading in a second language. Accordingly, fostering a positive, low-stress environment is more likely to enhance overall reading fluency than any attempt to match text emotionality to a reader's perceived mood.
In this study, we focused on self-reported mood and anxiety in relation to emotional word processing within natural L2 reading tasks, where the nature of lexical processing can be scrutinized more closely than decontextualized word recognition tasks because the recognition and integration of word meaning operates through complicated affective and cognitive processes (El-Dakhs et al., 2023). There is also a wide range of academic emotions, e.g., anger, enjoyment, and hope, which future research can focus on. Readers’ mood and anxiety during reading were assessed with self-reported instruments. Further nuanced research involving induced emotional states, like induced mood or anxiety is needed. Future research can also focus on the relevance of text type (narrative, descriptive, argumentative, etc.) to emotion word processing and its probable interplay with other reading-based variables. Overall, studying the interactive relationships between word features, task type, individual affects, and text features during contextualized reading tasks through advanced quantitative designs will proffer new insights into the dynamic processes involved in L2 reading.
Acknowledgments
The authors would like to express their sincere thanks to the participants in this research for their valuable time. This research has been conducted without any external funding.
Declaration of Conflicting Interests
The authors declare that they have no known competing interests.
Appendix
Reading Passages Including the Target Words
Reading 1
Joanne Rowling is the famous author of Harry Potter novels.
Joanne had a few troubles in her teenage life.
But she lived a normal, quiet life as a college student.
She always had the desire to become a writer.
After marriage she had no Chance of writing, she couldn’t live with him anymore.
She got divorced and reached a crisis financially and mentally.
Joanne was mentally in pain, but her daughter was her only hope.
Finally, she earned back her health as she focused on writing again.
After divorce, she had time, so the news of writing Harry Potter’s first book came out.
Although she was living alone with her daughter, she felt happier than before.
Joanne wrote the first novel in detail and gave it to a publisher.
That publisher could make her dream come true by selling so many copies.
Good to know that the rough theory of Harry Potter first occurred to her on a train.
The writing process of the first book was slow; it took Joanne six years to finish.
Joanne Rowling might have a truth to success; it was all in her mind.
She didn’t have any special methods, luck, or money to help her through the way.
It was all about her bliss of imagination that made her J. K. Rowling.
The story of a boy who fights the evil, makes the books unique and unforgettable.
Based on the reading, are the following statements True or False?
Reading 2
Before Shawn Mendes became an adult, he rose to fame at the age of fifteen.
At first, he felt too nervous to sing before a crowd.
Although he wasn’t a noisy student, he couldn’t study well along singing.
After six years, now he’s the idol of so many people in the world.
People from different countries, customs and tastes support him.
But he doesn’t feel being hindered anymore singing to thousands of people.
He doesn’t feel stressed or insecure either, he’s trying to control it.
His relationship with his fans is joyful, they all love and adore him.
He’s so caring, humble and modest; he says his fans are his friends.
Sometimes he might receive hatred, and idiot comments on him.
But he controls not to get anxious and focus on his music.
People love his music and cheer his songs in his concerts.
People from different races, genders and languages listen to him.
But money and fame haven’t made him moody; he always keeps a simple lifestyle.
He might live like an easygoing person, but works hard for his music.
There are billboards and posters of him in highways in different cities of the world.
As a kid, he was inspired by John Mayor, the famous American singer.
And now that kid, who has never been a loser, is a legend that Mayor admires, too.
Based on the reading, are the following statements True or False?