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Planning of rapid aiming movements and the contingent negative variation: Are movement duration and extent specified independently?
Author(s) -
Leuthold Hartmut,
Jentzsch Ines
Publication year - 2009
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.2009.00799.x
Subject(s) - contingent negative variation , psychology , duration (music) , motor program , movement (music) , task (project management) , variation (astronomy) , choice reaction time , motor planning , motor control , cognitive psychology , audiology , communication , developmental psychology , social psychology , electroencephalography , neuroscience , cognition , medicine , art , philosophy , physics , literature , management , astrophysics , economics , aesthetics
In the present study we investigated motor programming constraints implied by the Generalized Motor Program (GMP) view. A response precuing task was used in which participants performed aiming movements of either short or long duration to either a near or a far target position. Precues provided either no advance information or partial information about extent or duration or fully specified the aiming movement. Reaction time (RT) decreased and late Contingent Negative Variation (CNV) amplitude increased with the amount of advance information. In contrast to predictions of the GMP view, the extent precue led to faster responses and larger CNV amplitude than the duration precue. We conclude that late CNV amplitude reflects independent parameter specification processes at an abstract level at which GMP's motor programming constraints do not apply.