Relationship between CNV and timing of an upcoming event
Neuroscience Letters. 2005-07-01; 382(1-2): 106-111
DOI: 10.1016/j.neulet.2005.02.067
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1. Neurosci Lett. 2005 Jul 1-8;382(1-2):106-11. doi:
10.1016/j.neulet.2005.02.067. Epub 2005 Mar 25.
Relationship between CNV and timing of an upcoming event.
Pfeuty M(1), Ragot R, Pouthas V.
Author information:
(1)Unité de Neurosciences Cognitives et Imagerie Cérébrale, CNRS (UPR
640)-LENA-Hôpital Pitié-Salpêtrière, 47, Boulevard de l’Hôpital, 75651 Paris
Cedex 13, France.
This study reports an analysis of the Contingent Negative Variation (CNV)
recorded on the human scalp during the comparison of a test duration with a
previously memorized duration. Results show that CNV activity peaks at the end
of the memorized duration, and that its slope varies inversely with the length
of this duration. These features of CNV activity are similar to those of
climbing neuronal activity observed through intracerebral recordings in animals,
and suggest that both activities reflect how the brain encodes the timing of an
upcoming event. These results also show that the time-course of the CNV in
timing tasks is compatible with a pacemaker-accumulator model of temporal
processing.
DOI: 10.1016/j.neulet.2005.02.067
PMID: 15911131 [Indexed for MEDLINE]