Results 121 to 130 of about 8,523 (174)

Vestibular Ganglion of the Squirrel Monkey

Annals of Otology, Rhinology & Laryngology, 1982
The vestibular ganglia of adult squirrel monkeys (Saimiri sciureus) were studied with the aid of light and electron microscopy. The vestibular ganglia are formed by small and large neurons (perikarya). The perikarya's outermost surface is surrounded by 2–20 lamellae of compact myelin. The compact myelin sheath varies its thickness around one perikaryon.
C D, Fermin, M, Igarashi
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Orthocephalization in the postweaning squirrel monkey

American Journal of Physical Anthropology, 1996
Twenty male squirrel monkeys (Saimiri sciureus boliviensis) raised in captivity were allotted to one of the following groups: weanling control (C6) sampled at 6 months of age; young control (C24) fed ad libitum on a control diet and killed at 24 months of age; and malnourished (M24) fed ad libitum on a low-protein diet and sampled at 24 months of age ...
H M, Pucciarelli, V, Dressino
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Observational Learning in the Squirrel Monkey

Perceptual and Motor Skills, 1963
adult males, who were estimated co be 5 yr. old and had served in a variety of learning set experiments, served alternately as demonstrator ( D ) and observer (0) for 150 problems. In design the apparatus closely approximated that described by C. L. Darby and A. J. Riopelle (Observational learning in the rhesus monkey. I. comp . physiol. Psychol.. 1959,
J L, MAHAN, D M, RUMBAUGH
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Ultrastructure of the pulvinar of the squirrel monkey

Journal of Comparative Neurology, 1972
AbstractThree divisions of the squirrel monkey pulvinar, p. inferior (PI), p. lateralis (PL), and p. medialis (PM), have been studied with light‐ and electron‐microscopic techniques. Two populations of neurons exist. The first neuron is a thalamocortical relay cell (TCR), averaging about 26 μ in diameter, with radial dendritic pattern and thin ...
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The Mechanism of Hypercortisolemia in the Squirrel Monkey*

Endocrinology, 1982
The squirrel monkey, a New World primate, has plasma cortisol levels roughly 12 times those in Old World primates, such as the cynomolgus monkey, and man. Two mechanisms are possible to maintain this high plasma cortisol level: an increased cortisol production rate (PR) and a decreased cortisol MCR.
F G, Cassorla, B D, Albertson, G P, Chrousos, J D, Booth, D, Renquist, M B, Lipsett, D L, Loriaux   +6 more
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Electrodermal Response in the Squirrel Monkey

Perceptual and Motor Skills, 1977
An effort to find evidence of electrodermal response in the squirrel monkey ( Saimiri sciureus), as found in man, some infra-human genera of Simiae, and some lower mammals and amphibians, failed to locate an example. Given anatomical considerations, the availability of this response in Saimiri was suspected.
J K, Levy, M, Igarashi, J C, Ledet, M F, Reschke   +3 more
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The Squirrel Monkey Stabil1metry

Acta Oto-Laryngologica, 1982
In order to characterize postural ataxia associated with peripheral vestibular lesions, we have developed a T-perch recording system suitable for squirrel monkeys (tree-living primates). This system includes strain gauges for detecting movement of the vertical shaft in the directions of anterior-posterior and left-right.
Makoto Igarashi, Joel K. Levy, Toshiaki O-Uchi, Walter B. Kulecz   +3 more
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Visual sensitivity in the squirrel monkey

American Journal of Physical Anthropology, 1973
AbstractSeveral indices of visual sensitivity have been obtained from behavioral experiments conducted on the squirrel monkey (Saimiri sciureus). In this species, the photopic spectral sensitivity functions determined by increment‐threshold and flicker discrimination procedures are substantially different; the involvement of two different neural ...
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Of Monkeys and Squirrels

Bibliotheca Orientalis, 2023
WASSERMAN, Nathan, MADRER, Nimrod
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Successive and Concurrent Discrimination by Rock Squirrels and Squirrel Monkeys

Perceptual and Motor Skills, 1966
Groups of rock squirrels and squirrel monkeys were tested on discriminations which were grouped into lists of length 1 (successive presentation), 2, or 4 (concurrent presentation) problems each. All Ss received 16 runs through 360 problems equally divided among the three types of lists.
JAMES E. KING, ROY R. GOODMAN
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