Document Detail


Similarities in the neural signature for the processing of behaviorally categorized and uncategorized speech sounds.
MedLine Citation:
PMID:  23281939     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Recent human behavioral studies have shown semantic and/or lexical processing for stimuli presented below the auditory perception threshold. Here, we investigated electroencephalographic responses to words, pseudo-words and complex sounds, in conditions where phonological and lexical categorizations were behaviorally successful (categorized stimuli) or unsuccessful (uncategorized stimuli). Data showed a greater decrease in low-beta power at left-hemisphere temporal electrodes for categorized non-lexical sounds (complex sounds and pseudo-words) than for categorized lexical sounds (words), consistent with the signature of a failure in lexical access. Similar differences between lexical and non-lexical sounds were observed for uncategorized stimuli, although these stimuli did not yield evoked potentials or theta activity. The results of the present study suggest that behaviorally uncategorized stimuli were processed at the lexical level, and provide evidence of the neural bases of the results observed in previous behavioral studies investigating auditory perception in the absence of stimulus awareness.
Authors:
Carine Signoret; Etienne Gaudrain; Fabien Perrin
Related Documents :
9345489 - Individual functional anatomy of verb generation.
14561459 - Functional neuroanatomy of interference in overlapping dual tasks: an fmri study.
16525049 - Dissociating arbitrary stimulus-response mapping from movement planning during preparat...
10199429 - Effect of estrogen on brain activation patterns in postmenopausal women during working ...
15193939 - Brain activity correlates differentially with increasing temporal complexity of rhythms...
23357069 - Location-independent and location-linked representations of sound objects.
16506159 - Exploratory data analysis reveals visuovisual interhemispheric transfer in functional m...
3352249 - Similarities between tactual and auditory speech perception.
9407659 - Electrode discrimination and speech recognition in postlingually deafened adult cochlea...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-3
Journal Detail:
Title:  The European journal of neuroscience     Volume:  -     ISSN:  1460-9568     ISO Abbreviation:  Eur. J. Neurosci.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8918110     Medline TA:  Eur J Neurosci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 Federation of European Neuroscience Societies and Blackwell Publishing Ltd.
Affiliation:
Auditory Cognition and Psychoacoustics Team, Lyon Neuroscience Research Center, CNRS UMR5292, INSERM U1028, Université de Lyon, Lyon, France; Linnaeus Centre HEAD, The Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Structural Studies of Mixed Glass Former 0.35 Na(2)O + 0.65 [xB(2)O(3) + (1-x)P(2)O(5)] Glasses by R...
Next Document:  Effects of oral administration of rotenone on gastrointestinal functions in mice.