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  • 1
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    Changes in the sensory processing of olfactory signals induced by birth in sheep (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-05-08
    Description: After giving birth, sheep and many other species form a selective bond with their offspring based on the sense of smell. Processing of olfactory signals is altered to allow the animals to perform this selective recognition. Lamb odors have little effect on either neurotransmitter release or electrical activity of neurons in the olfactory bulb before birth. However, after birth there is an increase in the number of mitral cells, the principal cells of the olfactory bulb, that respond to lamb odors, which is associated with increased cholinergic and noradrenergic neurotransmitter release. Selective recognition of lambs is accompanied by increased activity of a subset of mitral cells and release of glutamate and gamma-aminobutyric acid (GABA) from the dendrodendritic synapses between the mitral and granule cells. The relation between the release of each transmitter after birth also suggests an increased efficacy of glutamate-evoked GABA release.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kendrick, K M -- Levy, F -- Keverne, E B -- New York, N.Y. -- Science. 1992 May 8;256(5058):833-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Agricultural and Food Research Council, Institute of Animal Physiology and Genetics Research, Babraham, Cambridge, United Kingdom.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1589766" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Female ; Glutamates/secretion ; Labor, Obstetric ; *Maternal Behavior ; Models, Neurological ; Neurons/physiology ; Odors ; Olfactory Bulb/*physiology ; Olfactory Nerve/physiology ; Pregnancy ; Regression Analysis ; Sheep ; *Smell ; Time Factors ; gamma-Aminobutyric Acid/secretion
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Testosterone reduces refractory period of stria terminalis neurons in the rat brain (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-05-25
    Description: The absolute refractory period of neurons projecting from the corticomedial amygdala to the medial preoptic-anterior hypothalamic junction in rats was significantly increased by castration (from 1.01 to 1.61 milliseconds) and decreased again by testosterone (from 1.48 to 0.97 millisecond). Corticomedial amygdala neurons which projected to the capsule of the ventromedial nucleus of the hypothalamus were unaffected. These results demonstrate a specific, direct neuronal effect of testosterone.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kendrick, K M -- Drewett, R F -- New York, N.Y. -- Science. 1979 May 25;204(4395):877-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/220709" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Amygdala/drug effects ; Animals ; Brain/*drug effects ; Castration ; Electric Stimulation ; Evoked Potentials/drug effects ; Hypothalamus, Anterior/drug effects ; Male ; Preoptic Area/drug effects ; Rats ; Synaptic Transmission/drug effects ; Testosterone/*pharmacology ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Memory processing of serial lists by pigeons, monkeys, and people (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-07-19
    Description: List memory of pigeons, monkeys, and humans was tested with lists of four visual items (travel slides for animals and kaleidoscope patterns for humans). Retention interval increases for list-item memory revealed a consistent modification of the serial-position function shape: a monotonically increasing function at the shortest interval, a U-shaped function at intermediate intervals, and a monotonically decreasing function at the longest interval. The time course of these changes was fastest for pigeons, intermediate for monkeys, and slowest for humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, A A -- Santiago, H C -- Sands, S F -- Kendrick, D F -- Cook, R G -- New York, N.Y. -- Science. 1985 Jul 19;229(4710):287-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sensory Sciences Center, Graduate School of Biomedical Sciences, University of Texas Health Science Center, Houston 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9304205" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Columbidae ; Female ; Humans ; Macaca mulatta ; Male ; Random Allocation ; *Retention (Psychology) ; Serial Learning
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Cells in temporal cortex of conscious sheep can respond preferentially to the sight of faces (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-04-24
    Description: To investigate whether the temporal cortex of a nonprimate species contains cells responsive to the sight of faces, a study was made in conscious sheep of the responses of neurons in this brain region to the sight of faces. Of 561 cells from which responses were recorded, 40 responded preferentially to faces. Different categories of these cells were influenced by dominance (presumably indicated by the presence and size of horns), breed and familiarity, and threatening faces such as those of humans and dogs. These results demonstrate that cells that respond preferentially to faces are present in the temporal cortex of a nonprimate species, and that the responses of these cells are influenced by factors relevant to social interaction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kendrick, K M -- Baldwin, B A -- New York, N.Y. -- Science. 1987 Apr 24;236(4800):448-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3563521" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cerebral Cortex/*physiology ; Evoked Potentials ; Face ; Sheep/*physiology ; Temporal Lobe/*physiology ; Visual Perception/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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