Neural structures involved in visual search guidance by reward-enhanced contextual cueing of the target location.

摘要: Spatial contextual cueing reflects an incidental form of learning that occurs when spatial distractor configurations are repeated in visual search displays. Recently, it was reported the efficiency can be modulated by reward. We replicated this behavioral finding and investigated its neural basis with fMRI. Reward value associated displays a session. The effect reward on context-guided assessed subsequent fMRI session without Structures known to support explicit valuation, such as ventral frontomedial cortex posterior cingulate cortex, were learning. Contextual cueing, leading more efficient search, went along decreased activation network. Retrosplenial played special role showed both main reward×configuration interaction may thereby central structure for modulation search.