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Related Concept Videos

Conserved Binding Sites01:49

Conserved Binding Sites

Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
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Conserved Binding Sites01:49

Conserved Binding Sites

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Related Experiment Video

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Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
07:45

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

Visual feature binding requires reentry.

Seth Bouvier1, Anne Treisman

  • 1Department of Psychology, Princeton University, Princeton, NJ 08540, USA. sbouvier@princeton.edu

Psychological Science
|April 29, 2010
PubMed
Summary
This summary is machine-generated.

Reentrant processing is crucial for feature binding. Disrupting this process with a trailing mask impaired orientation judgments but not color perception, supporting its role in binding.

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Integrating Visual Psychophysical Assays within a Y-Maze to Isolate the Role that Visual Features Play in Navigational Decisions

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Area of Science:

  • Cognitive Neuroscience
  • Visual Perception
  • Psychology

Background:

  • Feature binding, the process of integrating object attributes like color and orientation, is essential for coherent perception.
  • Reentrant processing, characterized by feedback loops in neural pathways, has been hypothesized as a key mechanism underlying feature binding.

Purpose of the Study:

  • To investigate the role of reentrant processing in feature binding.
  • To determine if disrupting reentrant processing selectively affects the binding of orientation versus color information.

Main Methods:

  • Participants viewed arrays of bar pairs, identifying orientation or color of a target item.
  • A trailing mask, presented after the target disappeared, was used to disrupt reentrant processing.
  • A control condition omitted a white bar, removing the need for binding.

Main Results:

  • The trailing mask significantly decreased accuracy for orientation judgments, but not for color judgments.
  • In the control condition, where binding was not required, both orientation and color were accurately reported.
  • These findings suggest that reentrant processing is necessary for binding orientation information.

Conclusions:

  • The results support the hypothesis that reentrant processing is a critical component of feature binding.
  • Disrupting reentrant processing selectively impairs the integration of orientation information, highlighting its specific role in binding.
  • Future research should explore the neural correlates of reentrant processing in visual feature binding.