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Categorical Perception Beyond the Basic Level: The Case of Warm and Cool Colors.
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In: Cognitive science, vol 41, iss 4 (2017)
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The center of attention: Metamers, sensitivity, and bias in the emergent perception of gaze.
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In: Vision research, vol 131 (2017)
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A common neural hub resolves syntactic and non-syntactic conflict through cooperation with task-specific networks.
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Spatiotemporal dynamics of word retrieval in speech production revealed by cortical high-frequency band activity. ...
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Spatiotemporal dynamics of word retrieval in speech production revealed by cortical high-frequency band activity.
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Increased discriminability of authenticity from multimodal laughter is driven by auditory information.
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The effect of semantic transparency on the processing of morphologically derived words: Evidence from decision latencies and event-related potentials.
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In: Brain and Mind Institute Researchers' Publications (2017)
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The ERP signature of the contextual diversity effect in visual word recognition
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Abstract:
Behavioral experiments have revealed that words appearing in many different contexts are responded to faster than words that appear in few contexts. Although this contextual diversity (CD) effect has been found to be stronger than the word-frequency (WF) effect, it is a matter of debate whether the facilitative effects of CD and WF reflect the same underlying mechanisms. The analysis of the electrophysiological correlates of CD may shed some light on this issue. This experiment is the first to examine the ERPs to high- and low-CD words when WF is controlled for. Results revealed that while high-CD words produced faster responses than low-CD words, their ERPs showed larger negativities (225-325 ms) than low-CD words. This result goes in the opposite direction of the ERP WF effect (high-frequency words elicit smaller N400 amplitudes than low-frequency words). The direction and scalp distribution of the CD effect resembled the ERP effects associated with "semantic richness." Thus, while apparently related, CD and WF originate from different sources during the access of lexical-semantic representations. ; The research reported in this article has been partially funded by Grants PSI2011-26924 (Spanish Ministry of Economy and Competitiveness) and GV/2014/067 (Conselleria d'Educacio, Investigacio, Cultura i Esport de la Generalitat Valenciana). ; info:eu-repo/semantics/publishedVersion
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Keyword:
Adolescent; Adult; Brain; Ciências Sociais::Psicologia; Contextual diversity; Electroencephalography; ERPs; Evoked Potentials; Female; Humans; Lexical organization; Male; Photic Stimulation; Reaction Time; Reading; Science & Technology; Semantics; Word recognition; Young Adult
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URL: https://doi.org/10.3758/s13415-016-0491-7 http://hdl.handle.net/1822/56612
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