Event-related potentials as indices of time processing: A review

被引:89
作者
Macar, F
Vidal, F
机构
[1] CNRS, LNC, F-13402 Marseille 20, France
[2] CNRS, UMR 6155, Lab Neurobiol Cognit, Marseille, France
[3] Serv Sante Armees, Inst Med Navale, Toulon, France
关键词
event-related potentials (ERPs); contingent negative variation (CNV); time processing; review;
D O I
10.1027/0269-8803.18.23.89
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
This review examines ERP data that document the mechanisms and neural bases of time processing in the millisecond-to-minute range. Several types of ERP attest to the existence of timing capacities. Among them, one component of the Contingent Negative Variation (CNV) provides an on-line index of timing. CNV data strengthen the temporal accumulator concept, designed to subtend duration encoding. This conclusion is based on four main results: The positive relationship between temporal estimates and CNV amplitude is an index of the accumulation mechanism; the CNV peak is an index of time-based decision making; the CNV relates to temporal encoding, whereas temporal long-term memory may be linked to shifts of positive polarity; learning effects on CNV amplitude depend on topographic features, thus revealing functional differences among brain regions with respect to timing.
引用
收藏
页码:89 / 104
页数:16
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