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Research Projects

Explosion 1: NEW
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Boundary Extension: Photographs and Drawings

Viewers remember seeing the area of a scene falling outside the edges of a photograph (click here). Discovered in the course of Intraub’s picture memory research, this phenomenon raises many new question about the representation of spatial relations within a scene, and anticipatory representation of upcoming views. 

Boundary Extension: Visual and Haptic Exploration

Following visual inspection or haptic exploration (touch and movement), observers experience boundary extension. They remember seeing or touching the unexplored region just beyond the “view” (i.e., just beyond the edges of the “window” – see figure). Ongoing research: a) contrasts intra-modal and cross-modal representation, b) compares scene perception in sighted vs. blind individuals, and c) studies of the effects of other sensory constraints (such as “tunnel vision), on the generation of boundary extension.

Anticipatory Representation and Eye Movements

What purpose is served by remembering unseen information beyond a given view? This research addresses the role of boundary extension in visual scanning. What is the influence of planning a fixation on the mental representation of a scene?  Eye tracking research is conducted using an EyeLink II head-mounted eye tracker.

 

Picture Memory

Rapid serial visual presentation (RSVP) of photographs is used to study scene memory, illusory conjunctions, and the effects of conceptual masking, attention instructions, and context on memory for scenes. A variety of traditional and new interactive tests are used to study the representation of specific scene details and overall layout.