M T W T F S S
            01
02 03 04 05 06 07 08
09 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31          
Add An Event

CCN Brown Bag Series - CANCELLED

Wednesday, April 18, 2018,

  • Location: Wilson Hall • 111 21St Ave S • Nashville, TN 37240
  • Room: 115

Sirawaj Itthipuripat

Department of Psychology

Vanderbilt University

“A basis for irrational foraging behavior in human visual system”

Counter to normative models of decision making, the reward history associated with information that is completely irrelevant can bias behavioral choices, even when the irrelevant information is not actionable. I will present a series of fMRI and EEG studies showing that the reward history of irrelevant information can bias stimulus representations in early visual cortex. Moreover, it can interfere with target selection modulations in parietal cortex. Together, these results suggest that the contribution of irrelevant information to sub-optimal value-based decisions begins with an early modulation of sensory responses. These biased sensory representations likely provide inputs to value-based normalization processes at later stages of human visual system.