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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.Prototype-referenced shape encoding revealed by high-level aftereffects Biederman and M. Bar, One-shot viewpoint invariance in matching novel objects, Vision Research, 39(17), p.2885, 1999.One-shot viewpoint invariance in matching novel objects M. Tarr et al., Three-dimensional object recognition is viewpoint dependent, Nature Neuroscience, 1(4), p.275, 1998.Three-dimensional object recognition is viewpoint dependent 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.Beyond Retinotopic Mapping: The Spatial Representation of Objects in the Human Lateral Occipital Complex
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