The human face is a visual pattern of great social and biological importance. While previous studies have shown that attention may be preferentially directed and engaged longer by faces, the current study presents a new methodology to test the notion that faces can capture attention. The present study uses the occurrence of inhibition of return (IOR) as a diagnostic tool to determine the allocation of attention in visual space. Because previous research suggested that IOR at a location in space only occurs after attention has been reflexively moved to that location, the current finding of IOR at the location of the face provides converging support for the claim that faces do have the ability to summon attention.
The purpose of the present study was to examine the influence of task set on the spatial and temporal characteristics of eye movements during scene perception. In previous work, when strong control was exerted over the viewing task via specification of a target object (as in visual search), task set biased spatial, rather than temporal, parameters of eye movements. Here, we find that more participant-directed tasks (in which the task establishes general goals of viewing rather than specific objects to fixate) affect not only spatial (e.g., saccade amplitude) but also temporal parameters (e.g., fixation duration). Further, task set influenced the rate of change in fixation duration over the course of viewing but not saccade amplitude, suggesting independent mechanisms for control of these parameters.