Efferent connections of the dorsomedial thalamic nuclei of the domestic chick (Gallus domesticus)

Catherine M. Montagnese, Szilvia E. Mezey, A. Csillág

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Small iontophoretic injections of the anterograde tracer Phaseolus vulgaris leucoagglutinin were placed in the thalamic anterior dorsomedial nucleus (DMA) of domestic chicks. The projections of the DMA covered the rostrobasal forebrain, ventral paleostriatum, nucleus accumbens, septal nuclei, Wulst, hyperstriatum ventrale, neostriatal areas, archistriatal subdivisions, dorsolateral corticoid area, numerous hypothalamic nuclei, and dorsal thalamic nuclei. The rostral DMA projects preferentially on the hypothalamus, whereas the caudal part is connected mainly to the dorsal thalamus. The DMA is also connected to the periaqueductal gray, deep tectum opticum, intercollicular nucleus, ventral tegmental area, substantia nigra, locus coeruleus, dorsal lateral mesencephalic nucleus, lateral reticular formation, nucleus papillioformis, and vestibular and cranial nerve nuclei. This pattern of connectivity is likely to reflect an important role of the avian DMA in the regulation of attention and arousal, memory formation, fear responses, affective components of pain, and hormonally mediated behaviors.

Original languageEnglish
Pages (from-to)301-326
Number of pages26
JournalJournal of Comparative Neurology
Volume459
Issue number3
DOIs
Publication statusPublished - May 5 2003

Fingerprint

Mediodorsal Thalamic Nucleus
Chickens
Anterior Thalamic Nuclei
Vestibular Nerve
Lateral Thalamic Nuclei
Thalamic Nuclei
Septal Nuclei
Periaqueductal Gray
Ventral Tegmental Area
Globus Pallidus
Reticular Formation
Locus Coeruleus
Cranial Nerves
Nucleus Accumbens
Substantia Nigra
Prosencephalon
Arousal
Thalamus
Hypothalamus
Fear

Keywords

  • Avian brain
  • Diencephalon
  • Limbic system
  • Pathway tracing
  • Phaseolus vulgaris leucoagglutinin

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Efferent connections of the dorsomedial thalamic nuclei of the domestic chick (Gallus domesticus). / Montagnese, Catherine M.; Mezey, Szilvia E.; Csillág, A.

In: Journal of Comparative Neurology, Vol. 459, No. 3, 05.05.2003, p. 301-326.

Research output: Contribution to journalArticle

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