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Responsiveness of protein deficient monkeys to manipulative stimuli
Author(s) -
Strobel David A.,
Zimmermann Robert R.
Publication year - 1972
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/dev.420050402
Subject(s) - psychology , japanese monkeys , developmental psychology , physiology , biology , zoology
Objects never experienced before by 4 groups of monkeys were introduced into a free operant chain manipulation situation. The presence of the objects disrupted the manipulation response rates of 2 groups of animals differing in age and onset of a diet restricted in protein. Age controls receiving higher concentrations of protein in diets isocaloric with respect to the protein restricted diet, showed increased performance to these stimuli. The reinstatement of the chains alone condition resulted in a partial, but temporary recovery, of the manipulation response by low protein animals. This disruption in chain pulling behavior by malnourished monkeys may be similar to neophobic avoidance reactions previously observed in protein deprived monkeys.