Visual Word Recognition Research Articles

On the relationship between spatial attention and semantics in the context of a Stroop paradigm.

A controversial issue in the literature on single word reading concerns whether semantic activation from a printed word can be stopped. Several reports have claimed that, even when attention is directed to a single letter in a word, semantic interference persists full blown in the context of variants of Stroop's paradigm. Incidental word recognition is thus claimed to be unaffected by directed spatial attention and hence to be automatic by this criterion. In contrast, the literature examining the relation between intentional visual word recognition and spatial attention in tasks like lexical decision and reading aloud suggests that spatial attention is a necessary preliminary to lexical/semantic processing of a word. These opposing conclusions raise the question of whether there is a qualitative difference between incidental and intentional visual word recognition when spatial attention is considered. We first consider the methodology from Stroop experiments in which putatively narrowed spatial attention manipulations failed to prevent interference from semantics. We then report a new experiment that better promotes focused spatial attention. The results yield clear evidence that the effect of semantic activation can indeed be sidelined because one or more prior processes were in large measure stopped. We conclude that incidental word recognition is not automatic in the sense of occurring without any kind of attention.

Emotion effects survive non-standard orthographic representations

ABSTRACT Digital communication has generated forms of written speech that may deviate from standard ones, such as Greeklish (a Latin-alphabet-based script) vs. Greek. The question of interest is how different orthographic representations of the same referent (e.g. petaloyda, “butterfly”, in Greeklish vs. πϵταλούδα “butterfly” in Greek) may influence word processing, particularly visual word recognition and access to affective connotations. 120 Greek native speakers were tested on a lexical decision task, in which script (Greeklish vs. Greek) and valence (positive vs. negative vs. neutral) were manipulated within participants. Words were matched for word class, frequency, concreteness, length, number of syllables and orthographic neighbourhood. Emotional words differed from neutral ones in valence and arousal. Results yielded faster response times for words written in the standard script (Greek) than the non-standard script (Greeklish). Moreover, regardless of script, response times were negatively correlated with the words’ valence, with slowest responses for negative words and fastest for positive ones, suggesting that positive content accelerates lexical access, whereas negative content slows it down. To sum up, although script type was found to affect word recognition, activation of and access to emotional content seemed to resist non-standard characteristics of visual word processing.

Lexical pathway from L2 to L1 activation in intermediate proficient bilinguals: behavioral and ERP evidence.

Numerous studies have demonstrated that second language (L2) comprehension is often accompanied by activations in the first language (L1). Using both behavioral measurement and event-related potential (ERP), this study conducted two experiments to investigate whether a direct activation pathway exists from L2 lexical representation to L1 lexical representation (the lexical pathway) in intermediate proficient bilinguals. In Experiment 1, we designed a vowel letter search task on English word pairs, which enables bilinguals to prevent semantic priming in the first 300 ms processing stage after the words' onset. In Experiment 2, Mandarin-English bilinguals were recruited to complete this task on English word pairs with occasional first character repetition between the Chinese counterparts of a word pair. Results showed a significant main effect within both the P200 and N400 time windows, indicating the activation of bilinguals' L1 lexical representation during these intervals. However, the main effect of semantic relatedness was only significant in the N400 time window. These results suggest that bilinguals can activate their L1 lexical representation directly before engaging in conceptual representation. This finding supported a lexical pathway of activation from L2 lexical representation to L1 lexical representation during visual-word recognition in intermediate proficient bilinguals.

Event-related Potential Measures of Visual Word Processing in Monolingual and Bilingual Children and Adults: A Focus on Word Frequency Effects.

How does language background influence the neural correlates of visual word recognition in children? To address this question, we used an ERP lexical decision task to examine first-language (L1) and second-language (L2) visual word processing in monolingual and bilingual school-aged children and young adults (n = 123). In particular, we focused on the effects of word frequency (an index of lexical accessibility) on RTs and the N400 ERP component. Behaviorally, we found larger L1 versus L2 word frequency effects among bilingual children, driven by faster and more accurate responses to higher-frequency words (no other language or age group differences were observed). Neurophysiologically, we found larger L1 word frequency effects in bilinguals versus monolinguals (across both age groups), reflected in more negative ERP amplitudes to lower-frequency words. However, the bilingual groups processed L1 and L2 words similarly, despite lower levels of subjective and objective L2 proficiency. Taken together, our findings suggest that divided L1 experience (but not L2 experience) influences the neural correlates of visual word recognition across childhood and adulthood.

Exploring Performance Skills in the Occupation of Learning to Read

ABSTRACT Only one-third of U.S. fourth-grade public school students score at or above reading proficiency on national standardized tests. Current language-based reading instruction methods do not appear to meet many students’ needs. This study explores the role of visual perception in word recognition skills amongst typically developing first graders. It is hypothesized that visual perception is a crucial component of word recognition. This quantitative correlational study explored the relationship between visual perception and word recognition skills in first grade students participating in general education. The findings revealed that several statistically significant relationships exist between visual perceptual functions and skills recruited for word recognition. Phonological processing is strongly associated with spatial relations (r = .35) and sequential memory (r = .38). These correlations are significant at the 0.01 level (2-tailed). Form constancy (r = .28) p < .05 is significant at the 0.05 level (2-tailed). These relationships suggest that visual perceptual skills and phonological processing are concurrently developed in these participants and that these skills are likely recruited simultaneously when engaging in occupations, such as learning to read. This study highlights the role of visual perception in early reading development. Educators may consider consulting with school-based occupational therapists to explore the potential impact of visual perception when supporting students who struggle with reading.

The family size effect in visual and auditory word recognition

ABSTRACT Words with larger morphological families elicit shorter response times in visual lexical decision, but in auditory lexical decision, family size effects have been reported to be facilitative, absent, or inhibitory. We revisit the auditory family size effect and different family size definitions by re-analysing data from two large lexical decision experiments. The results suggest that words with larger families elicit smaller response latencies not only in visual but also in auditory lexical decision. However, in auditory lexical decision, this effect is insignificant when the word contains a prefix. In both modalities, it is the degree of semantic similarity and the degree of form overlap between a word and its family members, rather than the mere presence of overlap, that seem to drive the family size effect.

Lateralized displays reveal the perceptual locus of the syllable transposition effect in Korean

Studies of letter transposition effects in alphabetic scripts provide compelling evidence that letter position is encoded flexibly during reading, potentially during an early, perceptual stage of visual word recognition. Recent studies additionally suggest similar flexibility in the spatial encoding of syllabic information in the Korean Hangul script. With the present research, we conducted two experiments to investigate the locus of this syllabic transposition effect. In Experiment 1, lexical decisions for foveal stimulus presentations were less accurate and slower for four-syllable nonwords created by transposing two syllables in a base word as compared to control nonwords, replicating prior evidence for a transposed syllable effect in Korean word recognition. In Experiment 2, the same stimuli were presented to the right and left visual hemifields (i.e., RVF and LVF), which project both unilaterally and contralaterally to each participant's left and right cerebral hemisphere (i.e., LH and RH) respectively, using lateralized stimulus displays. Lexical decisions revealed a syllable transposition effect in the accuracy and latency of lexical decisions for both RVF and LVF presentations. However, response times for correct responses were longer in the LVF, and therefore the RH, as compared to the RVF/LH. As the LVF/RH appears to be selectively sensitive to the visual-perceptual attributes of words, the findings suggest that this syllable transposition effect partly finds its locus within a perceptual stage of processing. We discuss these findings in relation to current models of the spatial encoding of orthographic information during visual word recognition and accounts of visual word recognition in Korean.

Visual word identification beyond common words: The role of font and letter case in brand names.

While abstractionist theories of visual word recognition propose that perceptual elements like font and letter case are filtered out during lexical access, instance-based theories allow for the possibility that these surface details influence this process. To disentangle these accounts, we focused on brand names embedded in logotypes. The consistent visual presentation of brand names may render them much more susceptible to perceptual factors than common words. In the present study, we compared original and modified brand logos, varying in font or letter case. In Experiment 1, participants decided whether the stimuli corresponded to existing brand names or not, regardless of graphical information. In Experiment 2, participants had to categorize existing brand names semantically - whether they corresponded to a brand in the transportation sector or not. Both experiments showed longer response times for the modified brand names, regardless of font or letter-case changes. These findings challenge the notion that only abstract units drive visual word recognition. Instead, they favor those models that assume that, under some circumstances, the traces in lexical memory may contain surface perceptual information.

Expectation Modulates Repetition Suppression at Late But Not Early Stages during Visual Word Recognition: Evidence from Event-related Potentials.

Visual word recognition is commonly rapid and efficient, incorporating top-down predictive processing mechanisms. Neuroimaging studies with face stimuli suggest that repetition suppression (RS) reflects predictive processing at the neural level, as this effect is larger when repetitions are more frequent, that is, more expected. It remains unclear, however, at the temporal level whether and how RS and its modulation by expectation occur in visual word recognition. To address this gap, the present study aimed to investigate the presence and time course of these effects during visual word recognition using EEG. Thirty-six native Cantonese speakers were presented with pairs of Chinese written words and performed a nonlinguistic oddball task. The second word of a pair was either a repetition of the first or a different word (alternation). In repetition blocks, 75% of trials were repetitions and 25% were alternations, whereas the reverse was true in alternation blocks. Topographic analysis of variance of EEG at each time point showed robust RS effects in three time windows (141-227 msec, 242-445 msec, and 467-513 msec) reflecting facilitation of visual word recognition. Importantly, the modulation of RS by expectation was observed at the late rather than early intervals (334-387 msec, 465-550 msec, and 559-632 msec) and more than 100msec after the first RS effects. In the predictive coding view of RS, only late repetition effects are modulated by expectation, whereas early RS effects may be mediated by lower-level predictions. Taken together, our findings provide the first EEG evidence revealing distinct temporal dynamics of RS effects and repetition probability on RS effects in visual processing of Chinese words.

Positional encoding of morphemes in visual word recognition.

Reading morphologically complex words requires analysis of their morphemic subunits (e.g., play + er); however, the positional constraints of morphemic processing are still little understood. The current study involved three unprimed lexical decision experiments to directly compare the positional encoding of stems and affixes during reading and to investigate the role of semantics during the position encoding of morphemes. Experiment 1 revealed that transposed compound words were harder to reject than their controls (e.g., dreamday vs. shadeday), whereas there was no difference between transposed suffixed words and their controls (e.g., fulpain vs. adepain). Experiment 2 replicated the results for transposed compound words of the first experiment and further showed that there was no difference between transposed prefixed words and their controls (e.g., qualifydis vs. qualifymis). Experiment 3 investigated the role of semantic transparency in morpheme transposition effects and revealed a larger morpheme transposition effect for semantically transparent transposed compound words (e.g., cuptea vs. taptea) than for semantically opaque transposed compound words (e.g., linedead vs. deskdead). These results bring to light important differences in the positional encoding of stems and affixes, suggesting that prefixes and suffixes are recognized in a position-dependent manner compared to the position-independent encoding of embedded stems and that morpheme transposition effects are guided by semantics. The current findings call for more clearly specified theoretical models of visual word recognition that reflect the distinct positional constraints of stems and affixes, as well as the influence of semantics on morphological processing. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The representation of Chinese phonograms and their radicals during the visual word recognition

The representation of Chinese phonograms and their radicals during the visual word recognition

Investigating lexical categorization in reading based on joint diagnostic and training approaches for language learners

Efficient reading is essential for societal participation, so reading proficiency is a central educational goal. Here, we use an individualized diagnostics and training framework to investigate processes in visual word recognition and evaluate its usefulness for detecting training responders. We (i) motivated a training procedure based on the Lexical Categorization Model (LCM) to introduce the framework. The LCM describes pre-lexical orthographic processing implemented in the left-ventral occipital cortex and is vital to reading. German language learners trained their lexical categorization abilities while we monitored reading speed change. In three studies, most language learners increased their reading skills. Next, we (ii) estimated, for each word, the LCM-based features and assessed each reader’s lexical categorization capabilities. Finally, we (iii) explored machine learning procedures to find the optimal feature selection and regression model to predict the benefit of the lexical categorization training for each individual. The best-performing pipeline increased reading speed from 23% in the unselected group to 43% in the machine-selected group. This selection process strongly depended on parameters associated with the LCM. Thus, training in lexical categorization can increase reading skills, and accurate computational descriptions of brain functions that allow the motivation of a training procedure combined with machine learning can be powerful for individualized reading training procedures.

Can prediction error explain predictability effects on the N1 during picture-word verification?

Abstract Do early effects of predictability in visual word recognition reflect prediction error? Electrophysiological research investigating word processing has demonstrated predictability effects in the N1, or first negative component of the event-related potential (ERP). However, findings regarding the magnitude of effects and potential interactions of predictability with lexical variables have been inconsistent. Moreover, past studies have typically used categorical designs with relatively small samples and relied on by-participant analyses. Nevertheless, reports have generally shown that predicted words elicit less negative-going (i.e., lower amplitude) N1s, a pattern consistent with a simple predictive coding account. In our preregistered study, we tested this account via the interaction between prediction magnitude and certainty. A picture-word verification paradigm was implemented in which pictures were followed by tightly matched picture-congruent or picture-incongruent written nouns. The predictability of target (picture-congruent) nouns was manipulated continuously based on norms of association between a picture and its name. ERPs from 68 participants revealed a pattern of effects opposite to that expected under a simple predictive coding framework.

Semantic Stroop interference is modulated by the availability of executive resources: Insights from delta-plot analyses and cognitive load manipulation

We investigated whether, during visual word recognition, semantic processing is modulated by attentional control mechanisms directed at matching semantic information with task-relevant goals. In previous research, we analyzed the semantic Stroop interference as a function of response latency (delta-plot analyses) and found that this phenomenon mainly occurs in the slowest responses. Here, we investigated whether this pattern is due to reduced ability to proactively maintain the task goal in these slowest trials. In two pairs of experiments, participants completed two semantic Stroop tasks: a classic semantic Stroop task (Experiment 1A and 2A) and a semantic Stroop task combined with an n-back task (Experiment 1B and 2B). The two pairs of experiments only differed in the trial pace, which was slightly faster in Experiments 2A and 2B than in Experiments 1A and 1B. By taxing the executive control system, the n-back task was expected to hinder proactive control. Delta-plot analyses of the semantic Stroop task replicated the enhanced effect in the slowest responses, but only under sufficient time pressure. Combining the semantic Stroop task with the n-back task produced a change in the distributional profile of semantic Stroop interference, which we ascribe to a general difficulty in the use of proactive control. Our findings suggest that semantic Stroop interference is, to some extent, dependent on the available executive resources, while also being sensitive to subtle variations in task conditions.

Effects of word length and frequency on word identification in second- and fifth-grade children as a function of language skills

The purpose of the current study was to examine the combined effect of word length and lexical frequency in a lexical decision task in second- and fifth-grade children with varying language skills. The participants, 47 second graders and 55 fifth graders, performed a lexical decision task in which word length and lexical frequency were manipulated orthogonally so that 32 words were short and frequent (e.g., fleur [flower]), 32 words were short and rare (e.g., navet [turnip]), 32 words were long and frequent (e.g., escalier [staircase]), and 32 words were long and rare (e.g., boussole [compass]). Language skills (phonological awareness, reading, vocabulary, and rapid automatized naming skills) were measured using standard language tests. The results showed that word length and, to a lesser extent, lexical frequency influence the speed and accuracy of word identification in different ways, depending on the children’s educational level. Furthermore, language skills were found to influence the effects of word length and frequency, differently in second- and fifth-grade children. The results are interpreted within the dual-route model of visual word recognition. The role of language skills in the implementation of these processes is also discussed.

Phonological recovery during Chinese sentence reading: effects of rime and tone

ABSTRACT The present study tested the activation of different phonological units of Chinese characters during silent sentence reading. Fifty-five participants were tested in an eye-tracking experiment. A highly predictable target character in each experimental sentence was replaced by four types of substitutes (i.e. no-violation, tone-violation, rime-violation, and double-violation). The participants exhibited a shorter total reading time in the no-violation and tone-violation conditions than in the double-violation baseline condition, whereas the rime-violation condition did not differ from the baseline. Moreover, the participants did not benefit from tonal information in addition to syllable-level phonological overlap. Our findings are consistent with a notion of late phonological activation in Chinese, and therefore suggest a direct route of lexical activation bypassing phonological mediation during visual word recognition.

The processing of spatial frequencies through time in visual word recognition

This study examined the temporal profile of spatial frequency processing in a word reading task in 16 normal adult readers. They had to report the word presented in a 200 ms display using a four-alternative forced-choice task (4AFC). The stimuli were made of an additive combination of the signal (i.e. the target word) and of a visual white noise patch wherein the signal-to-noise ratio varied randomly across stimulus duration. Four spatial frequency conditions were defined for the signal component of the stimulus (bandpass Butterworth filters with center frequencies of 1.2, 2.4, 4.8 and 9.6 cycles per degree). In contrast to the coarse-to-fine theory of visual recognition, the results show that the highest spatial frequency range dominates early processing, with a shift toward lower spatial frequencies at later points during stimulus exposure. This pattern interacted in a complex way with the temporal frequency content of signal-to-noise oscillations. The outcome of individual data patterns classification by a machine learning algorithm according to the corresponding spatial frequency band further shows that the most salient spatial frequency signature is obtained when the time dimension within data patterns is recoded into its Fourier transform.

Recognizing two dialects in one written form: A Stroop study

Abstract This study aims to examine the influence of dialectal experience on logographic visual word recognition. Two groups of Chinese monolectals and three groups of Chinese bi-dialectals performed Stroop color-naming in Standard Chinese (SC), and two of the bi-dialectal groups also in their regional dialects. The participant groups differed in dialectal experiences. The ink-character relation was manipulated in semantics, segments, and tones separately, as congruent, competing, or different, yielding ten Stroop conditions for comparison. All the groups showed Stroop interference for the conditions of segmental competition, as well as evidence for semantic activation by the characters. Bi-dialectal experience, even receptive, could benefit conflict resolution in the Stroop task. Chinese characters can automatically activate words in both dialects. Comparing naming in Standard Chinese and naming in the bi-dialectals’ regional dialects, still, a regional-dialect disadvantage suggests that the activation is biased with literacy and lexico-specific inter-dialectal relations.

Lexical and sub-lexical frequencies in isiXhosa-medium children’s stories

Visual word recognition in developing readers is affected by several factors, many of which are important in the design of teaching and testing materials. Among these, one well-studied factor is word frequency: more frequent words are recognised more quickly than less frequent words. Another is the presence of consonant sequences, where words containing a consonant sequence (e.g. ‘tsh’) are recognised more slowly than non-consonant-sequence-containing words of equivalent letter and phoneme length. In isiXhosa, there are currently no publicly available word frequency norms that are based on children’s literacy materials and are thus appropriate for the testing of developing readers. Publicly available information on the frequencies of particular consonant sequences, which would be valuable in the design of classroom materials, is also lacking. To address these gaps, this paper reports on the creation of a corpus of isiXhosa texts aimed at children (321 texts, 125,447 tokens, and 31,216 types), which was subsequently processed to derive (i) word frequency measures, (ii) descriptive statistics about the characteristics of the most frequent words, and (iii) information on sublexical frequency, with a focus on two-, three-, and four-consonant sequences. The findings of the article are relevant to scholars and practitioners working on literacy development and language processing in isiXhosa.

How country of origin and stimuli language influence visual word recognition in bilingual children

Aims and objectives: We used mouse tracking to determine how country of origin and stimuli language influence visual word recognition in bilingual children. Methodology: Children attending bilingual schools in Spain and the USA completed a lexical decision task in English. The task included real English words (e.g., true), and pseudohomophones following Spanish (e.g., tru) and English (e.g., troo) orthographical rules. Data and analysis: Bilingual children from both countries performed worse when responding to English pseudohomophones (within-language interference) than Spanish pseudohomophones (between-language interference). Findings/conclusions: The children from the USA outperformed the children from Spain in almost every measure. Interestingly, their mouse trajectories followed a different pattern. Originality: When responding to pseudohomophones, children from the USA showed a pronounced initial deviation toward the incorrect response (likely due to a strong activation of the phonology of the real English word) followed by a very effective corrective movement (likely due to an orthographic verification mechanism). Significance: Mouse tracking provides novel insights regarding language activation in bilingual readers.