Anirvan Nandy::Contact

A N I R V A N N A N D Y :: R E S E A R C H

R E S E A R C H   I N T E R E S T S

I am generally interested in the cognitive and computational mechanisms underlying visual per-
ception. My current research focuses more speciﬁcally on the mechanisms of and the differences
between perception of visual form in foveal (central) and peripheral vision. The beneﬁts of this line
of research are two-fold. First, they address some fundamental questions regarding the remarkable
ability of the human visual system to recognize ob jects. A better understanding of these issues
will seed the development of computer algorithms that can mimic our ability. Second, they answer
the clinical needs of patients with deﬁcits in central vision. Such patients rely on the peripheral
visual ﬁelds for their daily walks of life. Hence a comprehensive understanding of form vision
in the periphery is necessary for the development of assistive technologies for such patients To
address these various issues, I perform psychophysical experiments, functional magnetic resonance
imaging and computational modelling of the visual system under the guidance of my advisor,
Dr. Bosco Tjan.

C U R R E N T   P R O J E C T S

A   Recovering the perceptual template of a system with position uncertainty.

B   Understanding the mechanisms of visual crowding using 1st and 2nd order classification images.

C   Investigating the nature of feature integration accross spatial frequency channels.

D   Computational model of visual crowding.

P U B L I C A T I O N S

A   Journal Articles (Vision)

»	Nandy, A. S., & Tjan, B. S. (in press). Efficient integration across spatial frequencies for letter identification in foveal and peripheral vision. Journal of Vision.
»	Nandy, A. S., & Tjan, B. S. (2007). The nature of letter crowding as revealed by first- and second-order classification images. Journal of Vision, 7(2), 1-26. PDF HTML
»	Tjan, B. S., & Nandy, A. S. (2006). Classification images with uncertainty. Journal of Vision, 6(4), 387-413. PDF HTML

B Journal Articles (Cognitive Neuroscience)

»	Denson, T. F., Pederson, W. C., Ronquillo, J., & Nandy, A. S. (in press). The angry brain: Neural correlates of anger, angry rumination, and aggressive personality. Journal of Cognitive Neuroscience.
»	Ronquillo, J., Denson, T. F., Lickel, B., Lu, Z-L., Nandy, A. S., & Maddox, K. B. (2007). The effects of skin tone on race-related amygdala activity: an fMRI investigation. Social Cognitive and Affective Neuroscience, 2(1), 39-44. PDF
»

C Posters & Presentations

»	Nandy, A. S., & Tjan, B. S. (2008).The origin of crowding zones. Talk presented at VSS 2008. HTML
»	Tjan, B. S., Nandy, A. S., & Chung, S. T. L. (2008). Crowding in the amblyopic fovea can be unlike crowding in the normal periphery. Poster presented at VSS 2008. HTML
»	Nandy, A. S., & Tjan, B. S. (2007). Optimal feature integration across spatial frequencies in central and peripheral vision. Talk presented at VSS 2007. HTML
»	Nandy, A. S., & Tjan, B. S. (2007). "Signal-clamped" classification images. Talk presented at VSS 2007 (Mini-symposium on classification images).
»	Tjan, B. S., & Nandy, A. S. (2006). First- and second-order classification image analysis of crowding. Talk presented at ECVP 2006.
»	Nandy, A. S., & Tjan, B. S. (2006). Feature Integration Maps during crowding as revealed from covariance analysis of classification images. Talk presented at VSS 2006. HTML
»	Tjan, B. S., & Nandy, A. S. (2006). Hold it there and let's have a look: Extracting shift-invariance templates and sub-template features from signal-clamped classification images. Talk presented at VSS 2006. HTML
»	Nandy, A. S., & Tjan, B. S. (2005). Recovering the template of a system with position uncertainty. Poster presented at Society for Neuroscience 2005. PDF

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