Our visual system organizes lines, shapes, and colors into groups, objects, and scenes. This dissertation explores how these higher-level organizations arise, focusing on the contribution of feature-based attention, our ability to selectively enhance a color, shape, or orientation across our visual field. I will present evidence that feature-based attention enables grouping by similar features, assigns depth relationship between two surfaces when other depth cues are insufficient, and participates in perception of featural trends, e.g. is a color gradient going from yellow to blue or blue to yellow. Together, these results suggest a powerful role for feature-based attention in creating high-level structure in our visual world.

Last modified

• 01/29/2019

Creator

• Dian Yu

DOI

• https://doi.org/10.21985/N2WT98

Subject

• Psychology

Keyword

• Visual Perception
• Gestalt Grouping
• Attention
• Ambiguity Perception
• Perceptual Organization

Date created

• 2017-01-01

Resource type

• Dissertation

Rights statement

• In Copyright