Covert Orienting in the Split Brain Reveals Hemispheric Specialization for Object-Based Attention
- 1 November 1994
- journal article
- Published by SAGE Publications in Psychological Science
- Vol. 5 (6) , 380-383
- https://doi.org/10.1111/j.1467-9280.1994.tb00289.x
Abstract
Theories in cognitive science have debated whether visual selective attention is a space-based or object-based process To investigate this issue, we applied a new experimental paradigm that permits the simultaneous measurement of both space-based and object-based attention to a split-brain patient with disconnected cerebral hemispheres The data demonstrate both space-based and object-based components to the allocation of attention, and reveal that the two processes have different neural substrates These findings are related to previous research on split-brain and unilateral parietal patientsKeywords
This publication has 16 references indexed in Scilit:
- Visual attention and objects: Evidence for hierarchical coding of location.Journal of Experimental Psychology: Human Perception and Performance, 1993
- Preserved figure-ground segregation and symmetry perception in visual neglectNature, 1992
- The reviewing of object files: Object-specific integration of informationCognitive Psychology, 1992
- Visual parsing and response competition: The effect of grouping factorsPerception & Psychophysics, 1992
- Reallocation of visual attention.Journal of Experimental Psychology: Human Perception and Performance, 1991
- Movement and visual attention: The spotlight metaphor breaks down.Journal of Experimental Psychology: Human Perception and Performance, 1989
- MRI assessment of human callosal surgery with neuropsychological correlatesNeurology, 1985
- Allocation of attention in the visual field.Journal of Experimental Psychology: Human Perception and Performance, 1985
- Selective attention and the organization of visual information.Journal of Experimental Psychology: General, 1984
- Interactions between cortical and subcortical visual areas: Evidence from human commissurotomy patientsVision Research, 1984