1 / 14

Psychophysics of the structure of object memory

Psychophysics of the structure of object memory. Cristina Savin. Overview. Prototype referenced encoding of faces LOC and object representation 3D objects. Object representation. Region specific: Objects: LOC Faces: FFA Tools, etc. LOC. Lateral Occipital Complex Object representation.

rudyard-dale
Download Presentation

Psychophysics of the structure of object memory

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Psychophysics of the structure of object memory Cristina Savin

  2. Overview • Prototype referenced encoding of faces • LOC and object representation • 3D objects

  3. Object representation • Region specific: • Objects: LOC • Faces: FFA • Tools, etc.

  4. LOC • Lateral Occipital Complex • Object representation

  5. Face representation

  6. Prototype-referenced representation

  7. LOC adaptation

  8. Contralateral hemisphere

  9. Retinal vs Head centered

  10. Both -small retinal -significantly more adaptation in for the same side -results suggest a head/body centered reference frame in LOC

  11. 3D Objects: a set of gluons

  12. One-shot viewpoint invariance in matching novel objects

  13. 3D objects representation: a critique

  14. 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.

More Related