期刊
SPATIAL VISION
卷 22, 期 5, 页码 383-396出版社
VSP BV
DOI: 10.1163/156856809789476128
关键词
Object recognition; invariant recognition; contrast reversal, direction of illumination; categorization
资金
- Deutsche Forschungsgemeinschaft (DFG)
- National Institute of Information Technologies (NICTA) in Canberra, Australia
It has been suggested that the deleterious effect of contrast reversal on visual recognition in unique to faces, not objects Here we show from priming, supervised category learning and generalization that there is no such thing as general invariance of recognition of non-face objects against contrast reversal and. likewise. changes in direction Of illumination However. When recognition varies with rendering conditions, invariance may be restored and effects of continuous learning may be reduced by providing prior object knowledge from active sensation Our findings suggest that the degree of contrast invariance achieved reflects functional characteristics of object representations learned in a task-dependent fashion.
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