Abstract:
:We used the mismatch negativity event-related potential to examine how spatial location and feature variation affect the capacity of the auditory system to automatically respond to pairs of rapid (180 ms apart) acoustic changes within a single tone. When a tone first deviated from a standard tone in source location and then in its duration, we found independent responses to both deviations for right but not left field stimuli. In contrast, when the first deviation was in pitch and the second in duration, only the first deviation elicited a response, regardless of presentation side. These results suggest that information from either side of space is asymmetrically processed even in a free-field, and that the extent of the temporal window of integration is not a fixed property of the auditory system.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Deouell LY,Karns CM,Harrison TB,Knight RTdoi
10.1016/s0304-3940(02)01189-8keywords:
subject
Has Abstractpub_date
2003-01-02 00:00:00pages
171-4issue
3eissn
0304-3940issn
1872-7972pii
S0304394002011898journal_volume
335pub_type
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