Topographical differences in the responses of single hypothalamic neurons to limbic stimulation

Jt, Murphy; Dreifuss, J. J.; Gloor, P.

doi:10.1152/ajplegacy.1968.214.6.1443

Cited by 46 publications

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“…There is evidence to suggest that the two subnuclei of the basolateral complex, the basal and the lateral, may greatly differ in their ability to modify the discharge ever, it has been shown that only a very low percentage of hypothalamic neurons is affected in opposite directions by single shock stimulation to the basal and to the lateral amygdaloid nuclei (Egger, 1967;Murphy et al, 1968). Flynn's (1963 &1967) results may therefore eventually be explained in terms of differjng dynamic properties of these two amygdaloid subnuclei and their projections.…”

Section: Discussionmentioning

confidence: 99%

Electrophysiological Studies of Amygdalo‐hypothalamic Connections*

Gloor

Murphy

Dreifuss

1969

Annals of the New York Academy of Sciences

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Section: Discussionmentioning

confidence: 99%

Electrophysiological Studies of Amygdalo‐hypothalamic Connections*

Gloor

Murphy

Dreifuss

1969

Annals of the New York Academy of Sciences

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Amygdaloid projections to subcortical structures within the basal forebrain and brainstem in the rat and cat

Krettek

Price

1978

J of Comparative Neurology

1,250

427

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The efferent fiber connections of the nuclei of the amygdaloid complex with subcortical structures in the basal telencephalon, hypothalamus, midbrain, and pons have been studied in the rat and cat, using the autoradiographic method for tracing axonal connections. The cortical and thalamic projections of these nuclei have been described in previous papers (Krettek and Price, '77b,c). Although the subcortical connections of the amygdaloid nuclei are widespread within the basal forebrain and brain stem, the projections of each nucleus have been found to be well defined, and distinct from those of the other amygdaloid nuclei.The basolateral amygdaloid nucleus projects heavily to the lateral division of the bed nucleus of the stria terminalis (BNST), to the caudal part of the substantia innominata, and to the ventral part of the corpus striatum (nucleus accumbens and ventral putamen) and the olfactory tubercle; it projects more lightly to the lateral hypothalamus. The central nucleus also projects to the lateral division of the BNST and the lateral hypothalamus, but in addition it sends fibers to the lateral part of the substantia nigra and the marginal nucleus of the brachium conjunctivum. The basomedial nucleus has projections to the ventral striatum and olfactory tubercle which are similar to those of the basolateral nucleus, but it also projects to the core of the ventromedial hypothalamic nucleus and the premammillary nucleus, and to a central zone of the BNST which overlaps the medial and lateral divisions. The medial nucleus also projects to the core of the ventromedial nucleus and the premammillary nucleus, but sends fibers to the medial division of the BNST and does not project to the ventral striatum. The posterior cortical nucleus projects to the premammillary nucleus and to the medial division of the BNST, but a projection from this nucleus to the ventromedial nucleus has not been demonstrated. Projections to the "shell" of the ventromedial nucleus have been found only from the ventral part of the subiculum and from a structure at the junction of the amygdala and the hippocampal formation, which has been termed the amygdalo-hippocampal area (AHA). The AHA also sends fibers to the medial part of the BNST and the premammillary nucleus.Virtually no subcortical projections outside the amygdala itself have been demonstrated from the lateral nucleus, or from the olfactory cortical areas around the amygdala (the anterior cortical nucleus, the periamygdaloid cortex, and the posterior prepiriform cortex). However, portions of the endopiriform nucleus deep to the prepiriform cortex project to the ventral putamen, and to the lateral hypothalamus.

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Effects of Electrical Stimulation of the Amygdaloid Complex on the Ventromedial Hypothalamus

Dreifuss

1972

Advances in Behavioral Biology

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Topographical differences in the responses of single hypothalamic neurons to limbic stimulation

Cited by 46 publications

References 0 publications

Electrophysiological Studies of Amygdalo‐hypothalamic Connections*

Electrophysiological Studies of Amygdalo‐hypothalamic Connections*

Amygdaloid projections to subcortical structures within the basal forebrain and brainstem in the rat and cat

Effects of Electrical Stimulation of the Amygdaloid Complex on the Ventromedial Hypothalamus

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