Title page for ETD etd-10302003-164146


Type of Document Master's Thesis
Author Anderson, Ursula Simone
Author's Email Address uandersn1@yahoo.com
URN etd-10302003-164146
Title Aging, relative numerousness judgments, and summation in Western Lowland gorillas
Degree Master of Science
Department Psychology
Advisory Committee
Advisor Name Title
Maple, Terry Committee Chair
Bloomsmith, Mollie Committee Member
Marr, Marcus Committee Member
Smith, Anderson Committee Member
Keywords
  • Nonhuman primates
  • Response speed
  • Numerical competence
  • Age differences
Date of Defense 2003-05-09
Availability unrestricted
Abstract
Three experiments were conducted to evaluate the relation between age, relative numerousness judgments, and summation in Western lowland gorillas. The findings indicated that most of the gorillas did not perform relative numerousness judgments until after specific training to do so. However, the gorillas did perform summation without specific training and an age-related difference was apparent.
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Page Updated: June 11, 2003