An Event-Related Potential (ERP) Analysis of Semantic Congruity and Repetition Effects in Sentences

1992 ◽  
Vol 4 (2) ◽  
pp. 132-149 ◽  
Author(s):  
Mireille Besson ◽  
Marta Kutas ◽  
Cyma Van Petten
Keyword(s):  
Word Frequency ◽  
Lexical Processing ◽  
Recall Performance ◽  
Distributed Processing ◽  
Low Frequency ◽  
Cued Recall ◽  
Event Related Potential ◽  
Repetition Effects ◽  
Semantic Congruity ◽  
Open Class

In two experiments, event-related brain potentials (ERPs) and cued-recall performance measures were used to examine the consequences of semantic congruity and repetition on the processing of words in sentences. A set of sentences, half of which ended with words that rendered them semantically incongruous, was repeated either once (eg, Experiment 1) or twice (e.g., Experiment 2). After each block of sentences, subjects were given all of the sentences and asked to recall the missing final words. Repetition benefited the recall of both congruous and incongruous endings and reduced the amplitude and shortened the duration of the N400 component of the ERP more for (1) incongruous than congruous words, (2) open class than closed class words, and (3) low-frequency than high-frequency open class words. For incongruous sentence terminations, repetition increased the amplitude of a broad positive component subsequent to the N400. Assuming additive factors logic and a traditional view of the lexicon, our N400 results indicate that in addition to their singular effects, semantic congruiry, repetition, and word frequency converge to influence a common stage of lexical processing. Within a parallel distributed processing framework, our results argue for substantial temporal and spatial overlap in the activation of codes subserving word recognition so as to yield the observed interactions of repetition with semantic congruity, lexical class, and word frequency effects.

Pseudohomophone Naming and the Word Frequency Effect

1992 ◽  
Vol 45 (1) ◽  
pp. 51-71 ◽  
Author(s):  
Marcus Taft ◽  
Bruce Russell
Keyword(s):  
Word Frequency ◽  
Lexical Processing ◽  
Low Frequency ◽  
Complex Model ◽  
Frequency Effect ◽  
Decision Task ◽  
Word Frequency Effect ◽  
Alternative Account ◽  
Frequency Word ◽  
Lexical Route

An experiment by McCann and Besner (1987) suggested that non-words that are homophonic with a high-frequency word (e.g. “keap”) are named in the same amount of time as non-words that are homophonic with a low-frequency word (e.g. “fome”), despite such pseudohomophones being faster to name than non-pseudohomophones (e.g. “feap”, “yome”). Such a result is a challenge to any model of lexical processing that places the word-frequency effect at the stage when the word is being selected from amongst all lexical entries. McCann and Besner propose a complex alternative account where frequency effects arise at a later stage of processing, a stage that is not involved in the naming of pseudohomophones. The purpose of the present study is to look for a frequency effect in the naming of pseudohomophones, controlling for orthographic factors that McCann and Besner ignored. The first experiment, using a homophone decision task, establishes a set of items that produce a clear frequency effect. These items are then used in a naming experiment which also reveals a clear frequency effect for those subjects who make use of a lexical route when pronouncing pseudohomophones. It is concluded from this that the complex model developed by McCann and Besner is unnecessary.

A Longitudinal Study of the Effects of Word Frequency and Rime-Neighborhood Size on Beginning Readers' Rime Reading Accuracy in Words and Nonwords

2002 ◽  
Vol 34 (1) ◽  
pp. 39-58 ◽  
Author(s):  
J. Anne Calhoon ◽  
Lauren Leslie
Keyword(s):  
Longitudinal Study ◽  
Word Frequency ◽  
Word Learning ◽  
High Frequency ◽  
Low Frequency ◽  
Beginning Readers ◽  
Developmental Model ◽  
Neighborhood Size ◽  
Reading Accuracy ◽  
High Frequency Words

Beginning readers' rime reading accuracy was assessed over three years to examine the influence of word frequency and rime-neighborhood size (the number of single syllable words with the same rime) on words presented in lists and stories. Twenty-seven 1st- and 2nd- grade students read 54 words and 27 nonwords containing rimes from different size neighborhoods. In Year 1, children showed effects of neighborhood size in high frequency words read in stories and in low frequency words read in lists and stories. In Year 2, rimes from large neighborhoods were read more accurately than rimes from medium and small neighborhoods in high- and low-frequency words. In Year 3, no effects of rime-neighborhood size were found for high-frequency words, but effects on low-frequency words continued. These results support Leslie and Calhoon's (1995) developmental model of the effects of rime-neighborhood size and word frequency as a function of higher levels of word learning.

scholarly journals The Effect of Phonological Neighborhood Density on Vowel Articulation

2004 ◽  
Vol 47 (5) ◽  
pp. 1048-1058 ◽  
Author(s):  
Benjamin Munson ◽  
Nancy Pearl Solomon
Keyword(s):  
Word Frequency ◽  
Recent Literature ◽  
Low Frequency ◽  
Neighborhood Density ◽  
Low Density ◽  
Vowel Duration ◽  
Vowel Production ◽  
Phonological Neighborhood Density ◽  
Formant Frequencies ◽  
Phonological Neighborhood

Recent literature suggests that phonological neighborhood density and word frequency can affect speech production, in addition to the well-documented effects that they have on speech perception. This article describes 2 experiments that examined how phonological neighborhood density influences the durations and formant frequencies of adults’ productions of vowels in real words. In Experiment 1, 10 normal speakers produced words that covaried in phonological neighborhood density and word frequency. Infrequent words with many phonological neighbors were produced with shorter durations and more expanded vowel spaces than frequent words with few phonological neighbors. Results of this experiment confirmed that this effect was not related to the duration of the vowels constituting the high- and low-density words. In Experiment 2, 15 adults produced words that varied in both word frequency and neighborhood density. Neighborhood density affected vowel articulation in both high- and low-frequency words. Moreover, frequent words were produced with more contracted vowel spaces than infrequent words. There was no interaction between these factors, and the vowel duration did not vary as a function of neighborhood density. Taken together, the results suggest that neighborhood density affects vowel production independent of word frequency and vowel duration.

scholarly journals Eye Tracking Technology in Detecting the Switch Cost in the Intra-sentential Code-Switching Contexts

2018 ◽  
Vol 13 (05) ◽  
pp. 117
Author(s):  
Liqin Wu ◽  
Cuihua Xi
Keyword(s):  
Eye Tracking ◽  
Key Words ◽  
Word Frequency ◽  
Repeated Measures ◽  
Switch Cost ◽  
Low Frequency ◽  
Code Switching ◽  
Movement Data ◽  
Reading Efficiency ◽  
Areas Of Interest

Switch cost and cost site have been controversial issues in the code-switching studies. This research conducted an eye tracking experiment on eight bilingual subjects to measure their switch cost and cost site in comprehending the intra-sentential code-switching (Chinese and English) and the unilingual (pure Chinese) stimuli. The English words and their Chinese translations or equivalents were assumed as the key words in either a unilingual or an intra-sentential code-switching paragraph. These key words were located as areas of interest (AOI) with the same height and consisted of three word-frequency levels. After the experiment, the subjects were required to do a comprehension test to ensure their real understanding of the English words. Their performances in two different reading contexts were compared by adopting a paired sample t-test. Their eye movement data were validated by using 2 x 3 repeated measures ANOVA. It was revealed that: 1) the subjects’ scores in the intra-sentential code-switching contexts were higher than those in the unilingual ones, i.e. reading efficiency increased in the intra-sentential code-switching contexts; 2) word frequency had little effect on word recognition speed in the intra-sentential code-switching contexts, i.e., the least frequently used words did not necessarily take the subjects’ more time or vice versa; 3) even if a switch cost occurred(on rare occasions), it was not necessarily at the switching site, and low frequency words in alternating languages did impair performance even when the switch occurred at a sentence boundary.

The effects of discourse support on the organization and production of children's utterances

1987 ◽  
Vol 8 (1) ◽  
pp. 55-66 ◽  
Author(s):  
Nancy W. Streim ◽  
Robin S. Chapman
Keyword(s):  
Target Word ◽  
Word Frequency ◽  
Process Model ◽  
Low Frequency ◽  
Sentence Production ◽  
Support Condition ◽  
Description Task ◽  
Target Words

ABSTRACTThis study asked whether lexical availability affects the length, complexity, order of mention, and fluency of children's utterances. Lexical availability was manipulated through discourse support (present or absent) and word frequency (high or low) for 40 target nouns. Length was indexed by mean number of words per communication unit. Complexity was indexed by mean number of verbs per communication unit. Earlier mention was measured by mean number of words preceding the target word in each communication unit. Thirty-six subjects, aged 4, 6, and 8, described 40 illustrations containing a high or low frequency target noun referent. In the discourse support condition, provided for one half of the target words, subjects named the target word prior to the description task. Results showed that the number of responses containing the target word varied with age, word frequency and discourse support condition; length of responses varied with age and its interaction with discourse support; earlier mention varied with age and discourse support condition; and fluency varied with discourse support condition. The results are discussed from the viewpoint of Bock's process model of sentence production.

scholarly journals Early Event-related Potential Effects of Syllabic Processing during Visual Word Recognition

2005 ◽  
Vol 17 (11) ◽  
pp. 1803-1817 ◽  
Author(s):  
Manuel Carreiras ◽  
Marta Vergara ◽  
Horacio Barber
Keyword(s):  
Word Recognition ◽  
Visual Word Recognition ◽  
Time Window ◽  
Low Frequency ◽  
Event Related Potential ◽  
Visual Word ◽  
Early Event ◽  
New Paradigm ◽  
Behavioral Studies ◽  
N400 Component

A number of behavioral studies have suggested that syllables might play an important role in visual word recognition in some languages. We report two event-related potential (ERP) experiments using a new paradigm showing that syllabic units modulate early ERP components. In Experiment 1, words and pseudowords were presented visually and colored so that there was a match or a mismatch between the syllable boundaries and the color boundaries. The results showed color-syllable congruency effects in the time window of the P200. Lexicality modulated the N400 amplitude, but no effects of this variable were obtained at the P200 window. In Experiment 2, high-and low-frequency words and pseudowords were presented in the congruent and incongruent conditions. The results again showed congruency effects at the P200 for low-frequency words and pseudowords, but not for high-frequency words. Lexicality and lexical frequency effects showed up at the N400 component. The results suggest a dissociation between syllabic and lexical effects with important consequences for models of visual word recognition.

Word frequency does not moderate the degree to which people can selectively attend to parts of visually presented words

2020 ◽  
pp. 174702182096906
Author(s):  
Todd A Kahan ◽  
Louisa M Slowiaczek ◽  
Ned Scott ◽  
Brian T Pfohl
Keyword(s):  
Word Frequency ◽  
High Frequency ◽  
Congruency Effect ◽  
Response Times ◽  
Test Word ◽  
Low Frequency ◽  
Bigram Frequency ◽  
Capacity Model ◽  
Entire Word ◽  
High Frequency Words

Whether attention is allocated to an entire word or can be confined to part of a word was examined in an experiment using a visual composite task. Participants saw a study word, a cue to attend to either the right or left half, and a test word, and indicated if the cued half of the words (e.g., left) was the same (e.g., TOLD-TONE) or different (e.g., TOLD-WINE). Prior research using this task reports a larger congruency effect for low-frequency words relative to high-frequency words but extraneous variables were not equated. In this study ( N = 33), lexical (orthographic neighbourhood density) and sublexical (bigram frequency) variables were controlled, and word frequency was manipulated. Results indicate that word frequency does not moderate the degree to which parts of a word can be selectively attended/ignored. Response times to high-frequency words were faster than response times to low-frequency words but the congruency effect was equivalent. The data support a capacity model where attention is equally distributed across low-frequency and high-frequency words but low-frequency words require additional processing resources.

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