Now showing items 21-30 of 90
Systemic and intracerebroventricular effects of opioid peptides in withdrawn morphine-dependent rhesus monkeys
(Elsevier, 1983)
The effects of the degradation-resistant enkephalin analogs FK 33-824 and metkephamid were determined after systemic and intracerebroventricular (i.c.v.) administration in withdrawn morphine-dependent rhesus monkeys. Both ...
Brainstem systems mediate the enhancement of palatability by chlordiazepoxide
(Elsevier, 1988-05-03)
Previous studies have indicated that the benzodiazepine receptor complex is involved in enhancing taste palatability after chlordiazepoxide (CDP) administration. Positive, palatability-dependent ingestive reactions elicited ...
Flicker fusion characteristics of rod photoreceptors in the toad
(Elsevier, 1983)
Critical fusion frequency (CFF) of toad rods was examined at various intensities using intracellular recordings. Data were compared to CFF measurements (as a function of intensity) obtained with the electroretinogram (ERG) ...
Depth of focus, eye size and visual acuity
(Elsevier, 1980)
We develop formulas for calculating the approximate depth of focus of any eye. They show that the magnitude of depth of focus is inversely proportional to the size of the eye and to its visual acuity. One particular ...
Behavioral sensitization: Characterization of enduring changes in rotational behavior produced by intermittent injections of amphetamine in male and female rats
(Springer-Verlag, 1984-12)
Factors influencing the behavioral sensitization (“reverse tolerance”) produced by intermittent amphetamine (AMPH) injections were studied by quantifying rotational behavior in rats that had a unilateral 6-hydroxydopamine ...
Effect of ethanol and of noise on reaction time in the monkey: Variation with stimulus level
(Springer-Verlag, 1980-06)
To determine whether the latency-increasing effects of ethanol were differential with respect to the intensity of the stimulus that initiated the response, three rhesus monkeys were trained on a behavioral task in which ...
Strain differences in eating and drinking evoked by electrical stimulation of the hypothalamus
(Elsevier, 1981-03)
Electrical stimulation of the lateral hypothalamus (ESLH) has been shown to produce individual response differences that cannot be attributed to the neuroanatomical locus of the electrode. The purpose of the present ...
Effects of kainic acid and radiofrequency lesions of the pulvinar on visual discrimination in the monkey
(Elsevier, 1984-05-23)
Monkeys with thermocoagulation or kainic acid lesions of the pulvinar and unoperated control monkeys were tested in two tasks: pattern discrimination retention and color discrimination learning in which the stimuli were ...
Gonadectomy attenuates turning behavior produced by electrical stimulation of the nigrostriatal dopamine system in female but not male rats
(Elsevier, 1981-05-06)
Rotational behavior induced by electrical stimulation of ascending dopamine neurons is used as a behavioral model to investigate gender and hormonal influences on extra-hypothalamic dopamine systems. Steroid hormones ...
The influence of estrous cycle and intrastriatal estradiol on sensorimotor performance in the female rat
(Elsevier, 1987-05)
The influence of estrous cycle and intrastriatal implants of 17beta-estradiol (17[beta]-estradiol). 17alpha-estradiol (17[alpha]-estradiol) or cholesterol on the number of footfaults made by female rats traversing a narrow ...