Perceptual learning improves discrimination but does not reduce distortions in appearance.

ABSTRACT: Human perceptual sensitivity often improves with training, a phenomenon known as "perceptual learning." Another important perceptual dimension is appearance, the subjective sense of stimulus magnitude. Are training-induced improvements in sensitivity accompanied by more accurate appearance? Here, we examined this question by measuring both discrimination (sensitivity) and estimation (appearance) responses to near-horizontal motion directions, which are known to be repulsed away from horizontal. Participants performed discrimination and estimation tasks before and after training in either the discrimination or the estimation task or none (control group). Human observers who trained in either discrimination or estimation exhibited improvements in discrimination accuracy, but estimation repul

SUBMITTER: Szpiro SFA 

PROVIDER: S-EPMC12047783 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature