Exploring the Impact of Body Position on Attentional Orienting

Abstract

Attentional orienting is a crucial process in perceiving our environment and guiding human behavior. Recent studies have suggested a forward attentional bias, where faster reactions are observed to spatial cues indicating information appearing in the forward rather than the rear direction. This study investigated how the body position affects attentional orienting, using a modified version of the Posner cueing task within a virtual reality environment. Participants, seated at a 90° angle or reclined at 45°, followed arrows directing their attention to one of four spatial positions where a spaceship will appear, visible either through transparent windows (front space) or in mirrors (rear space). Their task was to promptly identify the spaceship’s color as red or blue. The results indicate that participants reacted more swiftly when the cue correctly indicated the target’s location (valid cues) and when targets appeared in the front rather than the rear. Moreover, the “validity effect”—the advantage of valid over invalid cues—on early eye movements, varied based on both the participant’s body position and the target’s location (front or rear). These findings suggest that the body position may modulate the forward attentional bias, highlighting its relevance in attentional orienting. This study’s implications are further discussed within contexts like aviation and space exploration, emphasizing the necessity for precise and swift responses to stimuli across diverse spatial environments.