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Machines: Problem Solving II01:30

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Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.
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A Method for Investigating Change Blindness in Pigeons (Columba Livia)
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Published on: September 7, 2018

Pigeons learn virtual patterned-string problems in a computerized touch screen environment.

Edward A Wasserman1, Yasuo Nagasaka, Leyre Castro

  • 1Department of Psychology, The University of Iowa, E11 Seashore Hall, Iowa City, IA 52242, USA. ed-wasserman@uiowa.edu

Animal Cognition
|February 12, 2013
PubMed
Summary
This summary is machine-generated.

Researchers developed a virtual patterned-string task for assessing cognitive abilities. Pigeons successfully learned this task, demonstrating its effectiveness for studying animal cognition and behavior.

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Area of Science:

  • Comparative psychology
  • Animal cognition
  • Behavioral science

Background:

  • String tasks are established methods for evaluating cognitive and perceptual abilities in humans and animals.
  • Patterned-string tasks, a common type, involve identifying a string linked to a reward.

Purpose of the Study:

  • To introduce a novel computerized touch screen apparatus for implementing virtual patterned-string tasks.
  • To assess the efficacy of this virtual task in evaluating cognitive capabilities in nonhuman animals, specifically pigeons.

Main Methods:

  • Development of a computerized touch screen system to present virtual patterned-string tasks.
  • Training pigeons on these virtual tasks and observing their performance.
  • Systematic variation of string parameters (length, separation, alignment) to analyze their effect on behavior.

Main Results:

  • Pigeons successfully learned and performed virtual patterned-string tasks, mirroring performance profiles of animals in conventional tasks.
  • Variations in string length, separation, and alignment significantly influenced pigeons' virtual string-pulling behavior.
  • Results suggest pigeons can manage complex patterned-string problems concurrently, supporting the task's validity.

Conclusions:

  • The computerized virtual patterned-string task is a powerful and versatile tool for cognitive research.
  • This method overcomes limitations of traditional approaches, enabling broader exploration of species and variables.
  • The virtual task facilitates the study of cognitive processes in organisms with sensorimotor constraints or when traditional methods are inadequate.