Temporal resolution of figures and grounds.
Recent studies have demonstrated that establishing figure-ground organization influences other perceptual processes. Specifically, figures undergo perceptual processing earlier than ground regions (Lester, Hecht, & Vecera, 2009), and they are processed for longer durations relative to ground regions (Hecht & Vecera, 2011). One potential consequence of figures' extended processing is degraded temporal resolution compared to ground regions. To test this hypothesis, observers completed a modified flicker-fusion task while viewing either displays that contained well-defined figures and grounds or displays that were ambiguous. As evidenced by increased sensitivity for flickering targets on the ground regions, the current results support the claim that figures have poorer temporal resolution than ground regions.
Gustavus Adolphus College, United States. Electronic address: lhecht@gustavus.edu.
Lauren N
LN
Hecht
University of Iowa, United States.
Shaun P
SP
Vecera
D000293:Adolescent; D005260:Female; D005425:Flicker Fusion / Q000502:physiology*; D006801:Humans; D008297:Male; D010775:Photic Stimulation / Q000379:methods; D013998:Time Perception / Q000502:physiology*; D055815:Young Adult
Critical Flicker Fusion Threshold; Figure Ground Discrimination; Visual Perception; Visual Threshold