Spontaneous Activity in Male Rats in Relation to Testis Hormone*

Heller, Richard E.

doi:10.1210/endo-16-6-626

Cited by 16 publications

(10 citation statements)

References 8 publications

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“…Rats receiving higher dose levels of testosterone did not differ significantly in their rate of conditioning from the rats receiving oil only, or the lower dose levels of testosterone. This latter finding is in agreement with a study by Heller (1932) who reported that massive injections of testicular extracts with known androgenic activity into castrated male rats did not restore the rats to previous activity levels. The reason for this curvilinear effect of androgens is not understood.…”

Section: Androgens and The Activation-supporting

confidence: 93%

Roles of activation and inhibition in sex differences in cognitive abilities.

Broverman¹,

Klaiber²,

Kobayashi³

1968

Psychological Review

326

110

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A hypothesis that known sex differences in cognitive abilities reflect sex-related differences in physiology is offered. Females surpass males on simple, overleafried, perceptual-motor tasks; Wales excel oh mdre complex tasks requiring an inhibition of immediate responses to obvious stimulus attributes in favor of responses to less obvious stimulus attributes. It is hypothesized that these sex differences are reflections of differences in relationships between adrenergic activating and cholinergic inhibitory neural processes, which, in turn, are sensitive to the "sex" hbrmotles, androgens and estrogens. Studies Of the effects Of drug and hormone administration's oil these behaviors; dnd of sex hormones on adrenergic arid cholinergic neuro-transmitters are examined. Implications for cross-sectional correlative analyses of cognitive organization are discussed.

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Section: Androgens and The Activation-supporting

confidence: 93%

Roles of activation and inhibition in sex differences in cognitive abilities.

Broverman¹,

Klaiber²,

Kobayashi³

1968

Psychological Review

326

110

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show abstract

“…Twelve corpora lutea were found in the ovaries from the most active animal and 10 were present in the ovaries from the least active animal. Other evidence in support of this hypothesis comes from the observations by Heller (1932) that the accessory reproductive organs of inactive male rats were normal, thus indicating that testis-hormone was being produced.…”

Section: Methodsmentioning

confidence: 94%

THE OVARIAN HORMONES AND SPONTANEOUS RUNNING ACTIVITY IN THE FEMALE RAT¹

Young

Fish

1945

Endocrinology

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“…Heller (1932) pointed out the large differences between rats in regard to the amount of exercise they took, but he was unable to correlate these differences with differences in size and activity of the accessory sex organs. Furthermore, he was unable to obtain consistent increases in activity when he injected seven bird units of an androgenic preparation into normal or castrate rats.…”

mentioning

confidence: 99%

Sex Steroid Hormones and Voluntary Exercise in Rats

Asdell¹,

Doornenbal²,

Sperling³

1962

Reproduction

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Oestrogen pellets implanted in castrated or spayed rats cause both the males and females to take a considerable amount of voluntary exercise. Testosterone pellets cause implanted spayed females to take considerable exercise but their effect on the castrated male is much less. If the male has previously been under the influence of an oestrogen pellet, the amount of activity that results when a testosterone pellet is implanted is increased. The suggestion is made that once the responsible brain centre has been exposed to oestrogen it becomes sensitive to the action of testosterone.

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Spontaneous Activity in Male Rats in Relation to Testis Hormone*

Cited by 16 publications

References 8 publications

Roles of activation and inhibition in sex differences in cognitive abilities.

Roles of activation and inhibition in sex differences in cognitive abilities.

THE OVARIAN HORMONES AND SPONTANEOUS RUNNING ACTIVITY IN THE FEMALE RAT¹

Sex Steroid Hormones and Voluntary Exercise in Rats

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Spontaneous Activity in Male Rats in Relation to Testis Hormone*

Cited by 16 publications

References 8 publications

Roles of activation and inhibition in sex differences in cognitive abilities.

Roles of activation and inhibition in sex differences in cognitive abilities.

THE OVARIAN HORMONES AND SPONTANEOUS RUNNING ACTIVITY IN THE FEMALE RAT1

Sex Steroid Hormones and Voluntary Exercise in Rats

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THE OVARIAN HORMONES AND SPONTANEOUS RUNNING ACTIVITY IN THE FEMALE RAT¹