Head jitter enhances three-dimensional motion perception.

ABSTRACT: Motion perception is a critical function of the visual system. In a three-dimensional environment, multiple sensory cues carry information about an object's motion trajectory. Previous work has quantified the contribution of binocular motion cues, such as interocular velocity differences and changing disparities over time, as well as monocular motion cues, such as size and density changes. However, even when these cues are presented in concert, observers will systematically misreport the direction of motion-in-depth. Although in the majority of laboratory experiments head position is held fixed using a chin or head rest, an observer's head position is subject to involuntary small movements under real-world viewing conditions. Here, we considered the potential impact of such "head jitter" o

SUBMITTER: Fulvio JM 

PROVIDER: S-EPMC7961113 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature