Event Details

Extra IoN Seminar: Exploring the cognitive and neural mechanisms of visual selective attention

Leonardo Chelazzi (University of Verona)
Venue: Room 218, Henry Wellcome Building
Date: 22nd May 2009
Time: 14:00 - 15:00

The present talk is organized in two parts. In the first part, I will review the main findings from experiments in which we recorded the activity of single neurons from area V4 of behaving macaques in order to explore the neuronal mechanisms of one specific form of feature selective attention, namely, when one feature of an object must be selected while other features of the same object must be ignored. This is accomplished very often in daily life, for instance when an individual must classify, or sort, objects (e.g., clothes, books, food items, etc.) on the basis of their shape, while at the same time disregarding their size or color; and vice versa.

In the second part of my talk, I will present new data from behavioral experiments with human observers, carried out in my laboratory over recent years, showing that the controlled delivery of rewards within the context of attentional tasks strongly modulates the short- and long-term consequences of episodes of attentional selection. The presented data will attest to a robust link between reward-related factors and attentional control – a link that has remained completely ignored until very recently.

Host: Anya Hurlbert

This item was added 18th May 2009

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