Bistability and hysteresis in the proximity-based grouping of dot lattices.

ABSTRACT: Grouping by proximity is a fundamental principle of human vision where elements close to each other are perceived as a group. This study examined the hysteresis effect in proximity-based grouping of dots in rectangular lattices in the presence of orientation biases. To induce perceptual switching, interdot distances in a specific direction were gradually increased or decreased on a trial-by-trial basis during ascending and descending sequences. To address orientation biases, stimuli were presented along two axes, each with two orientations. This design allowed investigation of perceptual switching between vertical and horizontal grouping in the cardinal axis and between 45° and 135° grouping in the oblique axis. Data from 34 participants were analyzed by fitting psychometric functions and

SUBMITTER: Moazzen H 

PROVIDER: S-EPMC12705819 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature