Visuo-tactile links in covert exogenous spatial attention remap across changes in unseen hand posture.
1083 - 1094.
We investigated the effect of unseen hand posture on cross-modal, visuo-tactile links in covert spatial attention. In Experiment 1, a spatially nonpredictive visual cue was presented to the left or right hemifleld shortly before a tactile target on either hand. To examine the spatial coordinates of any cross-modal cuing, the unseen hands were either uncrossed or crossed so that the left hand lay to the right and vice versa. Tactile up/down (i.e., index finger/thumb) judgments were better on the same side of external space as the visual cue, for both crossed and uncrossed postures. Thus, which hand was advantaged by a visual cue in a particular hemifield reversed across the different unseen postures. In Experiment 2, nonpredictive tactile cues now preceded visual targets. Up/down judgments for the latter were better on the same. side of external space as the tactile cue, again for both postures. These results demonstrate cross-modal links between vision and touch in exogenous covert spatial attention that remap across changes in unseen hand posture, suggesting a modulatory role for proprioception.
|Title:||Visuo-tactile links in covert exogenous spatial attention remap across changes in unseen hand posture|
|Open access status:||An open access version is available from UCL Discovery|
|Keywords:||S-R COMPATIBILITY, AUDIOVISUAL LINKS, PERIARCUATE NEURONS, SUPERIOR COLLICULUS, AFFERENT PROPERTIES, MACAQUE MONKEYS, PARIETAL CORTEX, REACTION-TIME, MECHANISMS, SPACE|
|UCL classification:||UCL > School of Life and Medical Sciences > Faculty of Brain Sciences > Psychology and Language Sciences (Division of) > Institute of Cognitive Neuroscience
UCL > School of Life and Medical Sciences > Faculty of Life Sciences
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