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Visual prior entry for foreground figures.

Benjamin D Lester¹, Lauren N Hecht, Shaun P Vecera

¹University of Iowa, Iowa City, Iowa, USA.

Psychonomic Bulletin & Review

|August 4, 2009

Summary

This summary is machine-generated.

Visual prior entry means attended stimuli are processed first. This study found that foreground figures are perceived to appear earlier than backgrounds, suggesting faster perceptual processing for salient objects.

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Area of Science:

Cognitive Psychology
Visual Perception

Background:

Attended stimuli are processed before unattended stimuli, a phenomenon known as visual prior entry.
The role of visual prior entry in figure-ground perception remains unclear.

Purpose of the Study:

To investigate whether visual prior entry applies to figure-ground perception.
To determine if salient objects (foreground figures) are perceived to appear earlier than their backgrounds.

Main Methods:

Participants performed temporal order judgments to report the perceived order of target appearance.
Stimuli involved foreground figures and backgrounds, with varying spatial separation.

Main Results:

Targets appearing on foreground figures were perceived to appear earlier than targets on backgrounds.
This effect was not due to response bias.
No prior-entry effects were observed when figures and grounds were spatially separated.

Conclusions:

Foreground figures are processed by perceptual systems earlier than backgrounds.
Figure-ground segregation may involve a temporal advantage for salient regions.