Psychophysics of the structure of object memory Cristina Savin.
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Transcript of Psychophysics of the structure of object memory Cristina Savin.
![Page 1: Psychophysics of the structure of object memory Cristina Savin.](https://reader035.fdocuments.net/reader035/viewer/2022062320/56649d425503460f94a1dec0/html5/thumbnails/1.jpg)
Psychophysics of the structure of object memory
Cristina Savin
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Overview
• Prototype referenced encoding of faces
• LOC and object representation
• 3D objects
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Object representation
• Region specific:– Objects: LOC– Faces: FFA– Tools, etc.
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LOC
• Lateral Occipital Complex
• Object representation
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Face representation
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Prototype-referenced representation
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LOC adaptation
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Contralateral hemisphere
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Retinal vs Head centered
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Both
-small retinal-significantly more adaptation in for the same side-results suggest a head/body centered reference frame in LOC
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3D Objects: a set of gluons
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One-shot viewpoint invariance in matching novel objects
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3D objects representation: a critique
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References
• D. Leopold et al., Prototype-referenced shape encoding revealed by high-level aftereffects , Nature Neuroscience, 4(1), p.89, 2001. I.
• Biederman and M. Bar, One-shot viewpoint invariance in matching novel objects , Vision Research, 39(17), p.2885, 1999.
• M. Tarr et al., Three-dimensional object recognition is viewpoint dependent , Nature Neuroscience, 1(4), p.275, 1998.
• A. McKyton and E. Zohary, Beyond Retinotopic Mapping: The Spatial Representation of Objects in the Human Lateral Occipital Complex, Cerebral Cortex, 17:1164-1172, 2007.