Chantal J Boisvert

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Two experiments were performed to study the effects of manipulation of central monoamines upon behavior in a delayed response (DR) situation. In the first study, serotonin (5-HT) levels were increased by administration of 5-hydroxy-L-tryptophan (5-HTP) and RO4-4602, a decarboxylase inhibitor, to cats that had overlearned the DR. This intervention had no(More)
OBJECTIVE The study examined whether climate has an impact on inpatient psychiatric length of stay in Veterans Health Administration hospitals (VHA). METHOD Data from the National Weather Service for eight climate variables for the locations of 134 VHA hospitals nationwide were factor analyzed, resulting in two climate factors representing temperature and(More)
Macaques are the most common animal model for studies in vision research, and due to their high value as research subjects, often continue to participate in studies well into old age. As is true in humans, visual acuity in macaques is susceptible to refractive errors. Here we report a case study in which an aged macaque demonstrated clear impairment in(More)
The common marmoset has attracted increasing interest as a model for visual neuroscience. A measurement of fundamental importance to ensure the validity of visual studies is spatial acuity. The marmoset has excellent acuity that has been reported at the fovea to be nearly half that of the human (Ordy and Samorajski, 1968), a value that is consistent with(More)
In cats the effect of Metergoline (Liserdol, Farmitalia) was investigated on the performance of a delayed response task and was related to the associated changes in the concentrations of dopamine, nonadrenaline and serotonin in the brain. Metergoline (14 microgram/kg/day, i.m.) administered during the first 10 days of the training significantly decreased(More)
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