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Titolo:
Projections from the lateral, basal, and accessory basal nuclei of the amygdala to the hippocampal formation in rat
Autore:
Pikkarainen, M; Ronkko, S; Savander, V; Insausti, R; Pitkanen, A;
Indirizzi:
Univ Kuopio, AI Virtanen Inst, FIN-70211 Kuopio, Finland Univ Kuopio Kuopio Finland FIN-70211 nen Inst, FIN-70211 Kuopio, Finland Univ Navarra, Sch Med, Dept Anat, E-31080 Pamplona, Spain Univ Navarra Pamplona Spain E-31080 , Dept Anat, E-31080 Pamplona, Spain Univ Kuopio, Dept Neurol, FIN-70211 Kuopio, Finland Univ Kuopio Kuopio Finland FIN-70211 t Neurol, FIN-70211 Kuopio, Finland
Titolo Testata:
JOURNAL OF COMPARATIVE NEUROLOGY
fascicolo: 2, volume: 403, anno: 1999,
pagine: 229 - 260
SICI:
0021-9967(19990111)403:2<229:PFTLBA>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
LONG-TERM POTENTIATION; ENTORHINAL CORTEX; DENTATE GYRUS; PHA-L; INTRINSIC CONNECTIONS; BASOLATERAL AMYGDALA; RHESUS-MONKEY; TOPOGRAPHIC ORGANIZATION; HORSERADISH-PEROXIDASE; RECIPROCAL CONNECTIONS;
Keywords:
entorhinal cortex; epilepsy; memory; parasubiculum; PHA-L; subiculum;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
71
Recensione:
Indirizzi per estratti:
Indirizzo: Pitkanen, A Univ Kuopio, AI Virtanen Inst, POB 1627, FIN-70211 Kuopio, Finland Univ Kuopio POB 1627 Kuopio Finland FIN-70211 Kuopio, Finland
Citazione:
M. Pikkarainen et al., "Projections from the lateral, basal, and accessory basal nuclei of the amygdala to the hippocampal formation in rat", J COMP NEUR, 403(2), 1999, pp. 229-260

Abstract

The amygdaloid complex and hippocampal formation mediate functions involving emotion and memory. To investigate the connections that regulate the interactions between these regions, we injected the anterograde tracer Phaseolus vulgaris-leucoagglutinin into various divisions of the lateral, basal, and accessory basal nuclei of the rat amygdala. The heaviest projection to the entorhinal cortex originates in the medial division of the lateral nucleus which innervates layer III of the ventral intermediate and dorsal intermediate subfields. In the basal nucleus, the heaviest projection arises in the parvicellular division and terminates in layer III of the amygdalo-entorhinal transitional subfield. In the accessory basal nucleus, the parvicellular division heavily innervates layer V of the ventral intermediate subfield. The most substantial projection to the hippocampus originates in the basal nucleus. The caudomedial portion of the parvicellular division projects heavily to the stratum oriens and stratum radiatum of CA3 and CAI. The accessory basal nucleus projects to the stratum lacunosum-moleculare of CA1. The subiculum receives a substantial input from the caudomedial parvicellulardivision. The parasubiculum receives dense projections from the caudal portion of the medial division of the lateral nucleus, the caudomedial parvicellular division of the basal nucleus, and the parvicellular division of theaccessory basal nucleus. Our data show that select nuclear divisions of the amygdala project to the entorhinal cortex, hippocampus, subiculum, and parasubiculum in segregated rather than overlapping terminal fields. These data suggest that the amygdaloid complex is in a position to modulate different stages of information processing within the hippocampal formation. (C) 1999 Wiley-Liss, Inc.

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Documento generato il 19/01/20 alle ore 20:22:01