Forced exercise blocks learned helplessness in the cockroach (Periplaneta americana).
For three consecutive days, two groups of adult female cockroaches (Periplaneta americana) (ns = 10) received inescapable shock. 24 hr. later one group was exposed to 10 min. of forced exercise on a treadmill while the other group received no exercise. Both groups were then run in a shuttlebox escape task. The cockroaches exposed to forced exercise did not become helpless in the shuttlebox escape task.
Brown
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GE
Department of Psychology, University of Tennessee, Martin 38238, USA. gbrown@utm.edu
Davis
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Johnson
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D000818:Animals; D003866:Depressive Disorder / Q000523:psychology; D004195:Disease Models, Animal; D005260:Female; D006380:Helplessness, Learned; D010526:Periplaneta / Q000502:physiology*; D010805:Physical Conditioning, Animal