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The Active Place Avoidance (APA) Test, an Effective, Versatile and Repeatable Spatial Learning Task for Mice
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Object avoidance during locomotion.

David A McVea1, Keir G Pearson

  • 1Department of Physiology and Centre for Neuroscience, 715 Medical Sciences Building, University of Alberta, Edmonton, AB T6G 2H7, Canada. dmcvea@ualberta.ca

Advances in Experimental Medicine and Biology
|February 21, 2009
PubMed
Summary
This summary is machine-generated.

Cats use short-term visual memory to avoid obstacles while walking. Their brains, particularly the posterior parietal cortex, retain obstacle locations to guide hindleg movements, advancing visuo-motor transformation understanding.

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Area of Science:

  • Neuroscience
  • Animal Behavior
  • Locomotion Studies

Background:

  • Vision is crucial for animal navigation and obstacle avoidance during movement.
  • Short-term visual memory plays a role in guiding locomotion and motor commands.
  • Understanding visuo-motor transformations is key to deciphering complex behaviors.

Purpose of the Study:

  • To review studies on short-term visual memory during walking in humans and cats.
  • To present novel findings on cats' ability to remember and avoid previously encountered obstacles.
  • To explore the role of the posterior parietal cortex in obstacle memory and visuo-motor control.

Main Methods:

  • Review of existing literature on visual memory and locomotion.
  • Experimental investigation of obstacle avoidance behavior in cats.
  • Neuronal recordings in the posterior parietal cortex (area 5) of freely walking cats.

Main Results:

  • Cats demonstrate a memory of obstacles for several minutes after stepping over them.
  • This memory is used to guide hindleg placement, successfully avoiding the remembered obstacle.
  • Neurons in the posterior parietal cortex show activity correlated with obstacle location relative to the cat's body.

Conclusions:

  • Cats possess a robust short-term visual memory for obstacle avoidance during locomotion.
  • The posterior parietal cortex is a potential key area for retaining obstacle location memories.
  • Further research is needed to elucidate how these neuronal activities regulate motor commands for obstacle avoidance.