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Updated: Aug 18, 2026

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
Published on: August 1, 2018
The role of sensory-motor information in object recognition: evidence from category-specific visual agnosia
David A Wolk1, H Branch Coslett, Guila Glosser
1Department of Neurology, University of Pennsylvania, Hospital of the University of Pennsylvania 3400 Spruce Street Philadelphia, PA 19104, USA. dwolk@partners.org
Abstract:
The role of sensory-motor representations in object recognition was investigated in experiments involving AD, a patient with mild visual agnosia who was impaired in the recognition of visually presented living as compared to non-living entities. AD named visually presented items for which sensory-motor information was available significantly more reliably than items for which such information was not available; this was true when all items were non-living. Naming of objects from their associated sound was normal. These data suggest that both information about object form computed in the ventral visual system as well as sensory-motor information specifying the manner of manipulation contribute to object recognition.
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