Psychology Commons^™

Attention's Grasp: Early And Late Hand Proximity Effects On Visual Evoked Potentials, Catherine L. Reed, David S. Leland, Benjamin Brekke '11, Alan Hartley

CMC Faculty Publications and Research

Behavioral studies suggest that visual attention is biased toward stimuli in the region of space near the palm of the hand, but it is unclear whether this effect is universal or selective for goal/task-related stimuli. We examined event-related potentials (ERPs) using a visual detection task in which the hand was placed near or kept far from target and non-target stimuli that were matched for frequency and visual features to avoid confounding factors. Focusing on attention-sensitive ERP components, we found that P3 (350–450 ms) amplitudes were increased for Hand Near conditions for targets only, demonstrating a selective effect consistent with the …