Now showing items 1-10 of 18
Individual differences in aggressiveness of female hamsters: Response to intact and castrated males and to females
(Elsevier, 1977-02)
The aggressive behaviour of female hamsters was studied while they were housed in large enclosures with males and in brief tests with males or females. Some females are not aggressive with any male, whereas others are very ...
On drinkometers: Problems and an inexpensive photocell solution
(Elsevier, 1971-12)
Electronic contact switches may interfere with measurements of taste discrimination and also the ability to utilize physiological recording or stimulation techniques simultaneously. An inexpensive and simply constructed ...
The reinforcing property of ethanol in the rhesus monkey
(Springer-Verlag, 1978-01)
Rhesus monkeys received intravenous injections of ethanol during daily sessions contingent on their presses on an available lever. Under the standard conditions, when each response on the lever during a 3-h period each day ...
Localization and detection of visual stimuli following superior colliculus lesions in rhesus monkeys
(Elsevier, 1978-11-03)
Rhesus monkeys were trained to fixate a central stimulus and to detect and localize a 50 msec light flash presented 6-80[deg] on either side of the central stimulus. Following large lesions of the superior colliculus, they ...
Fenfluramine and N-ethyl amphetamine: Comparison of the reinforcing and rate-decreasing actions in the rhesus monkey
(Springer-Verlag, 1975-01)
N-ethyl amphetamine HCl (NEA) and fenfluramine HCl ( meta -trifluoromethyl N-ethyl amphetamine) were evaluated as reinforcers in rhesus monkeys that had been previously trained to press a lever using food presentations and ...
Taste responsiveness, weight loss, and the ponderostat
(Elsevier, 1973-11)
Rats which lost weight due to exercise showed increased acceptance of good tasting food and increased rejection of bad tasting food. This indicates that energy deficit results in heightened taste responsiveness and suggests ...
Cocaine, d -amphetamine, and pentobarbital effects on responding maintained by food or cocaine in rhesus monkeys
(Springer-Verlag, 1979-09)
The effects of IM injections of cocaine, d -amphetamine, and pentobarbital were studied in rhesus monkeys whose lever-press responding was maintained under a second-order fixed-interval, fixed ratio schedule of reinforcement. ...
Impairment in sampling visual stimuli in monkeys with inferotemporal lesions
(Elsevier, 1970-03)
Monkeys with inferotemporal (IT) lesions and their controls, monkeys with partial removal of striate cortex (LS) and unoperated monkeys, were trained to discriminate between two stimulus compounds differing in brightness ...
Relative modulation sensitivities of the red and green color mechanisms
(Elsevier, 1978)
The sensitivities of the human green and red cone mechanisms to sinusiodally flickering light were found to be near equal and independent of field size and estimation method. No wavelength dependency of modulation sensitivity ...