Document Detail

Effect of a forward masker on the N1m amplitude: varying the signal delay.
MedLine Citation:
PMID:  12858055     Owner:  NLM     Status:  MEDLINE    
Auditory sensation is affected by a forward masker, and this phenomenon has been demonstrated in a neural adaptation model and a temporal window (integration) model. To study forward masking in the central auditory system, the growth of the N1m amplitude was measured by varying the signal delay. In the adaptation model, the masking increases as the signal delay decreases. However, in our results, the minimum N1m amplitude was observed at a signal delay of 40 ms. As the signal delay decreased from 40 ms, the N1m amplitude increased although the masking increased. Our results suggest that the growth of the N1m amplitude largely depends on temporal integration at signal delays below 40 ms.
Tadashi Nishimura; Seiji Nakagawa; Takefumi Sakaguchi; Hiroshi Hosoi; Mitsuo Tonoike
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neuroreport     Volume:  14     ISSN:  0959-4965     ISO Abbreviation:  Neuroreport     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-07-14     Completed Date:  2003-08-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9100935     Medline TA:  Neuroreport     Country:  England    
Other Details:
Languages:  eng     Pagination:  891-3     Citation Subset:  IM    
Department of Otolaryngology, Nara Medical University, 840 shijo-cho, Kashihara, Nara 634-8522, Japan.
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MeSH Terms
Acoustic Stimulation
Adaptation, Physiological
Auditory Perception / physiology*
Brain / physiology*
Perceptual Masking / physiology*
Time Factors

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