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Biomedical subjects

M Ptito

Publications and source records attributed to M Ptito.

80 records · Page 5Linked to original sources
PubMed1976

[Neurobehavioral study of colliculectomized monkeys].

A battery of neurological tests was administered to normal and colliculectomized monkeys to determine the effect of the lesion on visually guided behavior, acoustically guided behavior, general locomotor performance and affective behavior. The tests were given at one week and three months post-operatively. The behaviors of the animals were filmed and the results were derived from a careful analysis of the films. The operated monkeys showed important deficits on most tests. After three months a considerable improvement was noted in many functions. However, some behaviors were still totally or partially abnormal. An attempt is made to relate the completeness of the collicular resection and the duration of some of these symptoms.

Animals↗
PubMed1976

A recording procedure for chronic microelectrodes in the paralyzed cat.

A method is described for repeated recording sessions of cortical thalamic units in the unanaesthetized but paralyzed animal. Because the recording chamber is miniaturized, it is well tolerated by the subject between sessions. The system also permits painless and stable immobilization of the head without the use of earbars, avoiding surgical preparation during the actual recording sessions and allowing long periods of recording. Between sessions the animals always display normal behavior.

Animals↗
PubMed1975

Spectral sensitivity in a female Cebus Griseus.

The photopic spectral sensitivity of one female Cebus Griseus was determined to complement published results showing that this monkey did not demonstrate the red deficiency typical of most New World monkeys. A modified method of limits was used to determine S's perceived brightness of different monochromatic stimuli. The results suggest that this monkey might be a normal trichromat.

Animals↗