Vision Lunch 2013

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Contents

[edit] January

16 Rachel Denison, UC Berkeley
Functional mapping of the magnocellular and parvocellular subdivisions of human LGN
The magnocellular and parvocellular subdivisions of primate LGN are known to carry distinct functional signals, but a method for noninvasively defining these subdivisions in humans has proven elusive. To functionally map the M and P subdivisions of human LGN, we used high-resolution and high-field (3T and 7T) fMRI and a combination of spatial, temporal, luminance, and chromatic stimulus manipulations. We found that stimulus factors that differentially drive magnocellular and parvocellular neurons in primate LGN also elicit differential BOLD fMRI responses across human LGN, and these responses exhibit a spatial organization consistent with the known anatomical organization of the M and P subdivisions. The relative responses of individual voxels to M-type and P-type stimuli were reliable across individual scanning runs, scanning sessions on separate days, and scans at different field strengths. Functional localization of magnocellular and parvocellular regions of human LGN using fMRI opens new possibilities for investigating the functions of these subdivisions in human visual perception, in patient populations with suspected abnormalities in one of these subdivisions, and in the context of simultaneously measured BOLD activity from parallel thalamocortical pathways.

23 Alex Huth, UC Berkeley

30

(Brian away)

[edit] February

6 Masayuki TANAKA Tokyo Institute of Technology (HOLD)

One-Shot Multispectral Imaging with Five-Band CFA

Recent publications

13 Franco (HOLD)

20

27 Aviv Job Talk Practice

[edit] March

6 Michelle Greene, Stanford University

13 Bruno Rossion, University of Louvain

[edit] April

3 Bas Rokers, University of Wisconsin at Madison

The computation of 3D motion in the human visual system

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