Affordable Access

Interstimulus interval effect on event-related potential N270 in a color matching task.

Authors
Type
Published Article
Journal
Clinical EEG (electroencephalography)
Publication Date
Volume
32
Issue
2
Pages
82–86
Identifiers
PMID: 11360725
Source
Medline
License
Unknown

Abstract

Event-related brain potentials were recorded in a matching task, in which subjects were asked to discriminate if the color of the second stimulus (S2) was the same as the first stimulus (S1). The interstimulus interval between the two stimuli of a pair was of three levels (150 ms, 500 ms and 1000 ms). A negative component about 270 ms after the presentation of S2 was elicited when the color of the two stimuli was not identical for the interstimulus interval of 500 ms and 1000 ms, but not for the interval of 150 ms. This may suggest that N270 represented the response of the brain to conflicting information between different cortical levels.

Statistics

Seen <100 times