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Development of Pattern Recognition in Infant Pigtailed Macaques (Macaca nemestrina).
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Gunderson, Virginia M.; Sackett, Gene P. – Developmental Psychology, 1984
Examined the development of pattern recognition in infant pigtailed macaques using the familiarization novelty technique. Results indicate that by at least 200 days postconception subjects show a consistently reliable visual response to novelty. (Author/RH)
Descriptors: Animal Behavior, Cognitive Ability, Cognitive Development, Infants
Trisomy 16 in a Pigtailed Macaque ("M. nemestrina") with Multiple Anomalies and Developmental Delays
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Ruppenthal, Gerald C.; Moore, Charleen M.; Best, Robert G.; Walker-Gelatt, Coleen G.; Delio, Patrick J.; Sackett, Gene P. – American Journal on Mental Retardation, 2004
A female pigtailed macaque ("Macaca nemestrina") with unusual physical characteristics, deficits in learning and cognitive tasks, abnormal social behavior, and abnormal reflexes and motor control was followed from birth until 3 years of age and found to have trisomy 16, which is homologous to trisomy 13 in humans. The animal described here showed…
Descriptors: Primatology, Physical Characteristics, Social Behavior, Genetics
Social Preferences by and for Pigtailed Macaques (Macaca Nemestrina) with Trisomy 18.
Swartz, Karyl B.; Sackett, Gene P. – American Journal on Mental Retardation, 1994
Comparison of social choices of trisomic macaques and of control groups found that groups showed few differences in preferences for stimulus animals with and without disabilities. Results suggest that the avoidance of individuals with disabilities is not a general primate trait and the presence of mental retardation and physical handicaps need not…
Descriptors: Animal Behavior, Attitudes toward Disabilities, Congenital Impairments, Genetics