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Titolo:
Convergent and complementary projections of the caudal paralaminar thalamic nuclei to rat temporal and insular cortex
Autore:
Linke, R; Schwegler, H;
Indirizzi:
Otto von Guericke Univ, Inst Anat, D-39120 Magdeburg, Germany Otto von Guericke Univ Magdeburg Germany D-39120 9120 Magdeburg, Germany
Titolo Testata:
CEREBRAL CORTEX
fascicolo: 8, volume: 10, anno: 2000,
pagine: 753 - 771
SICI:
1047-3211(200008)10:8<753:CACPOT>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEDIAL GENICULATE-BODY; RETROGRADE AXONAL-TRANSPORT; AUDITORY-CORTEX; INFERIOR COLLICULUS; SUPRAGENICULATE NUCLEUS; HORSERADISH-PEROXIDASE; AFFERENT CONNECTIONS; TOPOGRAPHIC ORGANIZATION; OSCILLATING-POTENTIALS; ANTEROGRADE TRANSPORT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
79
Recensione:
Indirizzi per estratti:
Indirizzo: Linke, R Otto von Guericke Univ, Inst Anat, Leipziger Str 44, D-39120 Magdeburg, Germany Otto von Guericke Univ Leipziger Str 44 Magdeburg Germany D-39120
Citazione:
R. Linke e H. Schwegler, "Convergent and complementary projections of the caudal paralaminar thalamic nuclei to rat temporal and insular cortex", CEREB CORT, 10(8), 2000, pp. 753-771

Abstract

Thalamic nuclei adjacent to the medial geniculate body play a pivotal rolein processing of sensory stimuli during emotional situations. These nuclei, which include the suprageniculate nucleus (SG), the posterior intralaminar nucleus (PIN), the peripeduncular nucleus (PP) and the medial division ofthe medial geniculate body (MGm). project to both cortex and amygdala. buttarget areas and the extent of the projection of individual nuclei are notknown yet. The aim of the present study was to analyze the contribution ofindividual nuclei to the cortical projection with modern sensitive tracingtechniques. Small injections of Miniruby or PHA-L were made into single thalamic nuclei. All thalamic nuclei have in common a projection into the upper portion of layer I of the temporal aspect of the cortical mantle. Furthermore, SG, PIN, MGm and PP each demonstrated a convergent projection to lower layer ill and to layer IV of the ectorhinal and visceral cortex. Only MGm projects to layer VI of primary auditory and temporal association cortices. Within the perirhinal cortex zones of convergence and divergence exist. The present results demonstrate a differential thalamocortical projection of single thalamic nuclei to those cortical areas which are involved in the transmission of sensory signals to the amygdala via the thalamocortico-cortical pathway and to the hippocampus via the entorhinal cortex. The thalamicnuclei are thus in a position to activate the amygdala and to modulate theinformation flow of the thalamocortico-cortical pathway to both amygdala and hippocampus.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 11:07:16