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Göteborgs universitets publikationer

Saccade-Related Potentials During Eye-Hand Coordination: Effects of Hand Movements on Saccade Preparation

Författare och institution:
Uta Sailer (Psykologiska institutionen); F. Guldenpfennig (-); T. Eggert (-)
Publicerad i:
Motor Control, 20 ( 3 ) s. 316-336
ISSN:
1087-1640
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2016
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
This study investigated the effect of hand movements on behavioral and electrophysiological parameters of saccade preparation. While event-related potentials were recorded in 17 subjects, they performed saccades to a visual target either together with a hand movement in the same direction, a hand movement in the opposite direction, a hand movement to a third, independent direction, or without any accompanying hand movements. Saccade latencies increased with any kind of accompanying hand movement. Both saccade and manual latencies were largest when both movements aimed at opposite directions. In contrast, saccade-related potentials indicating preparatory activity were mainly affected by hand movements in the same direction. The data suggest that concomitant hand movements interfere with saccade preparation, particularly when the two movements involve motor preparations that access the same visual stimulus. This indicates that saccade preparation is continually informed about hand movement preparation.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
MEDICIN OCH HÄLSOVETENSKAP ->
Klinisk medicin ->
Neurologi
Nyckelord:
primate superior colliculus, arm movements, electrode laterality, emg, recordings, direction, humans, target, instructions, attention, neurons, Neurosciences & Neurology, Sport Sciences
Postens nummer:
239463
Posten skapad:
2016-07-25 15:16
Posten ändrad:
2016-07-27 13:52

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