Format

Send to

Choose Destination
J Exp Psychol Gen. 1994 Jun;123(2):161-77.

Shifting visual attention between objects and locations: evidence from normal and parietal lesion subjects.

Author information

1
Department of Neurology, University of California, Davis, Martinez 94553.

Abstract

Space- and object-based attention components were examined in neurologically normal and parietal-lesion subjects, who detected a luminance change at 1 of 4 ends of 2 outline rectangles. One rectangle end was precued (75% valid); on invalid-cue trials, the target appeared at the other end of the cued rectangle or at 1 end of the uncued rectangle. For normals, the cost for invalid cues was greater for targets in the uncued rectangle, indicating an object-based component. Both right- and left-hemisphere patients showed costs that were greater for contralesional targets. For right-hemisphere patients, the object cost was equivalent for contralesional and ipsilesional targets, indicating a spatial deficit, whereas the object cost for left-hemisphere patients was larger for contralesional targets, indicating an object deficit.

PMID:
8014611
DOI:
10.1037//0096-3445.123.2.161
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for American Psychological Association
Loading ...
Support Center