TY - JOUR
T1 - Action Influences spatial perception: Neuropsychological evidence
AU - Humphreys, Glyn
AU - Riddoch, Margaret
AU - Forti, Sara
AU - Ackroyd, K
PY - 2004/1/1
Y1 - 2004/1/1
N2 - We present neuropsychological evidence indicating that action influences spatial perception. First, we review evidence indicating that actions using a tool can modulate unilateral visual neglect and extinction, where patients are unaware of stimuli presented on one side of space. We show that, at least for some patients, modulation comes about through a combination of visual and motor cueing of attention to the affected side (Experiment 1). Subsequently, we review evidence that action-relations between stimuli reduce visual extinction; there is less extinction when stimuli fall in the correct colocations for action relative to when they fall in the incorrect relations for action and relative to when stimuli are just associatively related. Finally, we demonstrate that action relations between stimuli can also influence the binding of objects to space, in a patient with Balint's syndrome (Experiment 2). These neuropsychological data indicate that perception-action couplings can be crucial to our conscious representation of space.
AB - We present neuropsychological evidence indicating that action influences spatial perception. First, we review evidence indicating that actions using a tool can modulate unilateral visual neglect and extinction, where patients are unaware of stimuli presented on one side of space. We show that, at least for some patients, modulation comes about through a combination of visual and motor cueing of attention to the affected side (Experiment 1). Subsequently, we review evidence that action-relations between stimuli reduce visual extinction; there is less extinction when stimuli fall in the correct colocations for action relative to when they fall in the incorrect relations for action and relative to when stimuli are just associatively related. Finally, we demonstrate that action relations between stimuli can also influence the binding of objects to space, in a patient with Balint's syndrome (Experiment 2). These neuropsychological data indicate that perception-action couplings can be crucial to our conscious representation of space.
UR - http://www.scopus.com/inward/record.url?scp=1542716532&partnerID=8YFLogxK
U2 - 10.1080/13506280344000310
DO - 10.1080/13506280344000310
M3 - Article
SN - 1464-0716
SN - 1464-0716
SN - 1464-0716
SN - 1464-0716
SN - 1464-0716
SN - 1464-0716
SN - 1464-0716
SN - 1464-0716
SN - 1464-0716
SN - 1464-0716
VL - 11
SP - 401
EP - 427
JO - Visual Cognition
JF - Visual Cognition
ER -