Divide and conquer: how object files adapt when a persisting object splits into two.

Journal Article

Coherent visual experience requires not only segmenting incoming visual input into a structured scene of objects, but also binding discrete views of objects into dynamic representations that persist across time and motion. However, surprisingly little work has explored the principles that guide the construction and maintenance of such persisting object representations. What causes a part of the visual field to be treated as the same object over time? In the cognitive development literature, a key principle of object persistence is cohesion: An object must always maintain a single bounded contour. Here we demonstrate for the first time that mechanisms of adult midlevel vision are affected by cohesion violations. Using the object-file framework, we tested whether object-specific preview benefits-a hallmark of persisting object representations-are obtained for dynamic objects that split into two during their motion. We found that these preview benefits do not fully persist through such cohesion violations without incurring significant performance costs. These results illustrate how cohesion is employed as a constraint that guides the maintenance of object representations in adult midlevel vision.

Full Text

Duke Authors

Cited Authors

  • Mitroff, SR; Scholl, BJ; Wynn, K

Published Date

  • June 2004

Published In

Volume / Issue

  • 15 / 6

Start / End Page

  • 420 - 425

PubMed ID

  • 15147497

International Standard Serial Number (ISSN)

  • 0956-7976

Digital Object Identifier (DOI)

  • 10.1111/j.0956-7976.2004.00695.x


  • eng

Conference Location

  • United States