Action Control: Independent Effects of Memory and Monocular Viewing on Reaching Accuracy

Autor/inn/en	Westwood, D.A.; Robertson, C.; Heath, M.
Titel	Action Control: Independent Effects of Memory and Monocular Viewing on Reaching Accuracy
Quelle	In: Brain and Cognition, 57 (2005) 3, S.257-260 (4 Seiten) PDF als Volltext Verfügbarkeit
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-2626
DOI	10.1016/j.bandc.2004.08.055
Schlagwörter	Neuropsychology; Memory; Human Body; Vision; Student Educational Objectives + Suchen Sie Ihr Suchwort? Neuropsychologie; Gedächtnis; Menschlicher Körper
Abstract	Evidence suggests that perceptual networks in the ventral visual pathway are necessary for action control when targets are viewed with only one eye, or when the target must be stored in memory. We tested whether memory-linked (i.e., open-loop versus memory-guided actions) and monocular-linked effects (i.e., binocular versus monocular actions) on action arise from a common mechanism as suggested by evidence from neuropsychology and psychophysics. Participants viewed targets with either one eye or two (vision: monocular versus binocular) and then reached to touch targets in open-loop and memory-guided conditions (condition: open-loop versus 0, 500, 1000, and 1500ms delays). Results showed that memory-linked and monocular-linked increases in radial and variable movement error were additive (i.e., main effects of vision and condition, but no interaction). This suggests that the two effects on visuomotor control arise from separate mechanisms, in contrast to evidence from psychophysics and neuropsychology suggesting a common underlying mechanism. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10