Results 271 to 280 of about 2,167,307 (320)
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A retinal projection to the lateral hypothalamus in the rat
Cell and Tissue Research, 1981This study presents evidence for a retinal projection to neurons in the lateral hypothalamic area (LHA) of the albino rat. In Golgi-Kopsch material dendrites from LHA-neurons are observed to extend through the supraoptic commissures into the optic tract. The presence of dendrites in the optic tract is confirmed by electron microscopy.
J N, Riley, J P, Card, R Y, Moore
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Drinking induced by electrical stimulation of the lateral hypothalamus
Experimental Neurology, 1967Abstract Rats received electrical stimulation through electrodes implanted chronically in the lateral hypothalamus. The stimulation, controlled either by the experimenter or by the rat pressing on a lever, elicited stimulus-bound drinking in several of the animals.
G J, Mogenson, J A, Stevenson
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Effect of imipramine on serotonin turnover in the lateral hypothalamus
Pharmacology Biochemistry and Behavior, 1978One hour following an infusion of 3H-5-hydroxytryptamine, animals were injected with either 15 mg/kg imipramine hydrochloride or 0.9% NaCl and then the lateral hypothalamus was perfused for 40 min. Samples of perfusate were analyzed by thin layer chromatography for estimation of 3H-labelled 5-hydroxytryptamine and metabolites. The results indicate that
K M, Kantak +3 more
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Acetylcholine, an inhibitory transmitter in the rat lateral hypothalamus
Brain Research Bulletin, 1976Basolateral stimulation of the amygdala inhibited spontaneous firing of rat lateral hypothalamic neurons. The inhibition was augmented by eserine and blocked by atropine. Acetylcholine mimicked the inhibition and produced approximately 15 mV of hyperpolarization beyond the original resting membrane potential which stopped spontaneous firing.
Yutaka Oomura +3 more
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Analgesia produced by injection of lidocaine into the lateral hypothalamus
Pain, 1987The local anesthetic lidocaine was injected into the lateral hypothalamus (LH) of awake, freely moving rats immediately prior to pain testing with either the formalin or the foot-flick test. Regional anesthesia of the LH resulted in a significant bilateral reduction of pain scores in the formalin test but had no effect in the foot-flick test.
R A R, Tasker +3 more
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Yohimbine blocks lateral hypothalamus-mediated behaviors
European Journal of Pharmacology, 1979There exist behavioral and physiological similarities between rats injected with yohimbine and those with lesions of the lateral hypothalamus. The present study sought to determine if behaviors mediated by the lateral hypothalamus would be significantly altered by yohimbine.
G A, Mickley, H, Teitelbaum
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Learning is a matter of history and relevance for lateral hypothalamus
Nature Neuroscience, 2021By probing the dependence on learning history or motivational significance of stimuli, Sharpe and colleagues reveal previously uncharacterized contributions of lateral hypothalamus GABA neurons to associative learning.
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The Lateral Hypothalamus and Adjunctive Drinking
1974Publisher Summary The purpose of this chapter is to review some facts that demonstrate motor functions of the lateral region of the hypothalamus (LH) in the rat and to relate them to motor activity and adjunctive behavior. The hypothalamus is one of the most interesting parts of the brain. Relatively simple experimental manipulations such as lesions,
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Self-administration of morphine into the lateral hypothalamus in the mouse
Brain Research, 1987BALB/c mice were chronically and unilaterally implanted with a guide cannula, the tip of which was positioned 1 mm above the lateral hypothalamus (LH). On each experimental day, a stainless-steel injection cannula was inserted into the LH, and self-administration of morphine or vehicle in this brain area was studied by using a spatial discrimination ...
P, Cazala, C, Darracq, M, Saint-Marc
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Chronic gnawing induced by electrolytic lesions dorsolateral and lateral to the lateral hypothalamus
Physiology & Behavior, 1972Abstract Electrolytic lesions were placed dorsolateral and lateral to the lateral hypothalamic feeding center in rats. Rats typically showed an initial weight loss followed either by stabilization at reduced weight levels or a gradual return to normal. There was no evidence of hyperphagia. However, these animals showed exaggerated gnawing behavior as
R W, Reynolds, J, Kimm
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