Abstract:
:Covert shifts of visual attention in space have been quantified by measuring the effects of visual cues on the detection of visual targets in humans and monkeys maintaining visual fixation. These observations of "covert orienting" have provided important information regarding the neurobiology of visual attention in primates. This article describes a cued spatial target detection task for physically unrestrained rats. Valid cues (spatially contiguous with the target) enhanced target detection, and invalid cues (spatially discontiguous with the target) degraded target detection. Both visual and auditory cues were effective. These validity effects could not be explained by stimulus additivity or response preparation mechanisms, whereas a cue-independent "alerting effect" appeared to reflect response preparation. The effects compare favorably with primate work and suggest that this method may enable assessment of visual attention shifts in rats.
journal_name
Behav Neuroscijournal_title
Behavioral neuroscienceauthors
Bushnell PJdoi
10.1037//0735-7044.109.6.1095subject
Has Abstractpub_date
1995-12-01 00:00:00pages
1095-105issue
6eissn
0735-7044issn
1939-0084journal_volume
109pub_type
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