How do we recognize things in the world ? What is the functional organization of the brain that enable us to recognize objects, faces, words and scenes?
Lashkari, D., Sridharan, R., Vul, E., Hsieh, P.-J., Kanwisher, N.G., Golland, P. (2010) Nonparametric hierarchical Bayesian model for functional brain parcellation. in Proc. MMBIA: IEEE Computer Society Workshop on Mathematical Methods in Biomedical Image Analysis, 15-22. (PDF)
Hsieh, P.-J., Vul, E., and Kanwisher, N. (2010). Recognition alters the spatial pattern of fMRI activation in early retinotopic cortex. Journal of Neurophysiology. 103, 1501-1507. ( PDF) (Faculty 1000 Recommendation)
Do you recognize the object in this image? (Click the image to see the answer.) How does the brain change after you recognize the object?
Cluster analysis over fMRI voxels' functional profile. We present a variety of objects and examine what voxels in the brain have similar functional profiles. We "re-discovered" face, body and scene clusters even without assuming specific response profile, stimulus categories, or spatial contiguity of voxels. (collaborated with Danial Lashkari and Polina Golland)