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Journal of Comparative Psychology Volume 25 Issue 3

Subject Areas: Ecology, Evolution, Behavior and Systematics; ;
Publisher: Williams & Wilkins Company - American Psychological Association
ISSN: 0735-7036
SJR: 86

LitStream

Journal Article

Activation of impotent male rats by injections of testosterone propionate

Stone, C. P.

1938 Journal of Comparative Psychology

doi:10.1037/h0058394

12 male rats whose copulatory activity was nil during a series of preliminary tests in a study of sex drive were given subcutaneous injections of testosterone propionate. Positive results were achieved, some beginning to copulate within two days after the injections. The frequency of copulation...
LitStream

Journal Article

Monocular color discrimination after unilateral occipital lobectomy in rhesus monkeys

Maison, G. L.; Grether, W. F.; Settlage, P. H.

1938 Journal of Comparative Psychology

doi:10.1037/h0055462

"Differential color limens were obtained at three points in the spectrum for normal monkeys, for monkeys with unilateral occipital lobectomy, and in the latter with vision restricted to one eye." The number of cases was 10. Three possible interpretations are offered to account for the difference...
LitStream

Journal Article

The effect upon performance of introduction and removal of a delay within the maze

Cooper, J. B.

1938 Journal of Comparative Psychology

doi:10.1037/h0060687

A block introduced within the maze increases and its removal decreases the time consumed in running that part of the maze prior to the block. Introduction of the block resulted in not more errors but hesitancy, head movements, jerky movements, etc.
LitStream

Journal Article

Differential errors in children's learning on a stylus maze

Jones, H. E.; Yoshioka, J. G.

1938 Journal of Comparative Psychology

doi:10.1037/h0054154

Two stylus slot mazes were learned by 151 children under conditions varying as to procedure, order, and pattern. Goal impetus, drift tendency, local forward momentum, anticipatory errors, and centralizing tendency were analyzed with respect to their influence on differential errors. Comparison of...
LitStream

Journal Article

The temporal course of transfer in the learning of memory material

Bunch, M. E.; McCraven, V. G.

1938 Journal of Comparative Psychology

doi:10.1037/h0055267

100 undergraduates divided into five equal groups were tested to determine the amount of transfer from the learning of one paired-associate nonsense-syllable problem to the learning of a second similar task occurring when the two are learned in immediate succession as compared with the amount...
LitStream

Journal Article

A study of electric shock motivation in maze learning

Bunch, M. E.; Magdsick, W. K.

1938 Journal of Comparative Psychology

doi:10.1037/h0060300

126 white rats were taught a 14-unit multiple-T maze, one trial per day, to a criterion of 3 errorless runs under conditions of hunger, hunger with shocks for blind alleys, escape from shock, escape from shock plus hunger, escape from shock with practice trials massed instead of one per day....
LitStream

Journal Article

The effect of movement of stimulus objects upon avoidance reactions in chimpanzees

Haslerud, G. M.

1938 Journal of Comparative Psychology

doi:10.1037/h0063562

12 chimpanzees, 5 adult and 7 child, were tested by placing a battery of animate objects (tortoise, snake, alligator, fire, and ball) and a battery of inanimate objects paired according to size with the animate ones close to food for which the animals had to reach. The fear pattern was similar in...

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