Semantic processing of highly repeated concepts presented in single-word trials: Electrophysiological and behavioral correlates

Renoult, Louis; Brodeur, Mathieu B.; Debruille, J. Bruno

doi:10.1016/j.biopsycho.2010.01.014

Cited by 15 publications

(16 citation statements)

References 124 publications

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“…This opens a new avenue of research as the study of the variables that modulate the duration of N400 might reveal as much about the functional significance of this ERP as did the variables that modulate its amplitude. On the other hand, we have shown in previous studies that the amplitude of N400 recorded after multiple repetitions is sensitive to the same variables as in non-repeated conditions, namely semantic priming (across SOAs), semantic category and concreteness and that it is not modulated by physical matching (Debruille and Renoult, 2009;Renoult and Debruille, 2011;Renoult et al, 2010Renoult et al, , 2012. The present study confirmed the maintenance of semantic priming effects with repetition and demonstrated that these effects can be studied with various numbers of target words.…”

Section: Resultssupporting

confidence: 86%

“…These early N400s were shown to be sensitive to the same variables as the N400s obtained in non-repeated conditions. Namely, they were modulated by semantic priming (across SOAs), semantic category and concreteness and were not affected by physical matching (Debruille and Renoult, 2009;Renoult and Debruille, 2011;Renoult et al, 2010Renoult et al, , 2012. Despite the observation that these N400s peaked much earlier for highly repeated words than non-repeated words, it could be demonstrated that the onset of the deflections themselves was the same in both conditions (around 230 ms after word onset; Debruille and Renoult, 2009).…”

Section: Introductionmentioning

confidence: 84%

“…This was done because the N400-like potential observed with high rates of repetition was shown to peak earlier than the classic N400 (Debruille and Renoult, 2009;Renoult and Debruille, 2011;Renoult et al, 2010). All the following measures were taken at Cz electrode.…”

Section: Data Processing and Measuresmentioning

confidence: 99%

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From N400 to N300: Variations in the timing of semantic processing with repetition

Renoult¹,

Wang²,

Calcagno³

et al. 2012

NeuroImage

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The present study aimed to explore the variations of semantic processing according to the number of target words (i.e., 4, 12 and 24) and according to the number of repetitions (i.e, 1 to 15). The number of targets had no impact on the N400 brain potential, the index of semantic processing, nor on the late positive component (LPC), an index of episodic encoding and retrieval. Analyses of the effects of the number of repetitions showed that the duration of semantic processes -assessed by measuring N400 latency -was linearly shortened along repetitions while their extent -as indexed by N400 amplitude -remained constant after the second presentation. In contrast, the extent of episodic processes -as indexed by LPC amplitude -was found to increase linearly with repetition. By showing that N400 latency may be much less stable than previously thought, these results bring new constraints on the functional correlates of this key stage in the processing of semantic information. They also suggest that semantic processes can be studied at high repetition rates whatever the number of target stimuli. Finally, our findings show that each episode of prior presentation has an impact on the late processing of a stimulus despite the absence of an explicit memory task.

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Section: Resultssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 84%

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From N400 to N300: Variations in the timing of semantic processing with repetition

Renoult¹,

Wang²,

Calcagno³

et al. 2012

NeuroImage

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“…In the explicit semantic matching task, the main generators of the effect of semantic priming in the N400 time window were located in the left superior temporal gyrus and in the inferior parietal cortex bilaterally, as found in Renoult and Debruille (2011) and Renoult et al (2010). Differences in laterality were however present compared with these studies.…”

Section: Discussionmentioning

confidence: 56%

“…This was done because the classic 300-500 ms time window cannot be chosen to measure the N400-like potential observed with high rates of repetition as this deflection was shown to peak earlier than the classic N400 and to be temporally less extended (Debruille and Renoult, 2009;Renoult and Debruille, 2011;Renoult et al, 2010). The latency of the negative peak that appeared between 200 and 500 ms at Cz electrode on the grand average of unprimed trials was first measured.…”

Section: Data Processing and Measuresmentioning

confidence: 99%

Explicit semantic tasks are necessary to study semantic priming effects with high rates of repetition

Renoult

Wang

Mortimer

et al. 2012

Clinical Neurophysiology

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h i g h l i g h t sAssociative priming decreases N400 amplitude and reaction time (RT) to highly repeated target words. N400 generators in the left superior temporal gyrus and inferior parietal cortex are involved in priming effects across stimulus onset asynchronies (SOAs).Task used, rather than SOA or the proportion of related words, is crucial for the maintenance of semantic processing with high rates of repetition. a b s t r a c tObjective: The purpose of the present study was to clarify in which experimental conditions the semantic processing of repeated words is preserved. Methods: We contrasted a short (250 ms) and a long (1000 ms) stimulus onset asynchrony (SOA) in two different experiments, using a relatively low proportion of related words (30%). One group of participants performed a lexical decision task (LDT) and a second group performed an explicit semantic matching task with the same words (except for pseudowords) and the same task parameters. In both tasks, word stimuli consisted solely of two prime and two target words repeated throughout the experiment. Results: The effects of semantic priming on reaction time (RT) and the amplitude of the N400 ERP were absent for both the short and the long SOA in the LDT. In contrast, in the explicit semantic task, these effects were significant. In this task, the activity of N400 generators in the left superior temporal gyrus and the inferior parietal cortex significantly differentiated primed and unprimed trials but this effect did not interact with SOA. Conclusions: Our results indicate that task instruction is critical to preserve semantic processing with repeated presentations. Significance: Using explicit semantic designs, it may be possible to study associative or categorical relations between individual concepts.

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The effects of total sleep deprivation on semantic priming: Event-related potential evidence for automatic and controlled processing strategies

Zunini

Muller-Gass

Campbell

2014

Brain and Cognition

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Semantic processing of highly repeated concepts presented in single-word trials: Electrophysiological and behavioral correlates

Cited by 15 publications

References 124 publications

From N400 to N300: Variations in the timing of semantic processing with repetition

From N400 to N300: Variations in the timing of semantic processing with repetition

Explicit semantic tasks are necessary to study semantic priming effects with high rates of repetition

The effects of total sleep deprivation on semantic priming: Event-related potential evidence for automatic and controlled processing strategies

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