Termination pattern of medial hyperstriatum ventrale efferents in the archistriatum of the domestic chick

A. Csillág, A. Székely, D. C. Davies

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The chick archistriatum receives afferents from the intermediate part of the medial hyperstriatum ventrale (IMHV) and projects to the lobus parolfactorius (LPO). There is functional evidence to suggest that the IMHV and the LPO are connected, but there is no anatomical evidence for a direct connection between the two structures. The aim of the current study was to characterize the termination pattern of medial hyperstriatal afferents within the archistriatum to determine whether the archistriatum may act as a relay between the IMHV and LPO. Following iontophoresis of Phaseolus vulgaris leucoagglutinin into the medial hyperstriatum ventrale (including the IMHV) of 1-week-old domestic chicks, anterogradely labelled fibers were observed to descend through the medial neostriatum and paleostriatum to enter the archistriatum. These medial hyperstriatum ventrale afferents arborised profusely to give varicose axon branches within all except the anterior part of the archistriatum. However, the greatest density was present in the ventral part of the intermediate archistriatum. Electron microscope examination of Phaseolus lectin immunocytochemistry and Golgi impregnation revealed that medial hyperstriatum ventrale axons formed multiple asymmetric synapses with dendritic spines (head and neck regions) on the terminal and preterminal dendritic segments of densely spiny archistriatal projection neurons. Medial hyperstriatum ventrale afferents were not observed to contact calbindin immunoreactive, presumptive 'local circuit' neurons, within the archistriatum, despite a spatial overlap in their distribution. These results suggest that the archistriatum may be capable of mediating the transfer of information from the IMHV to the LPO.

Original languageEnglish
Pages (from-to)394-402
Number of pages9
JournalJournal of Comparative Neurology
Volume348
Issue number3
DOIs
Publication statusPublished - 1994

Fingerprint

Amygdala
Axons
Neostriatum
Neurons
Calbindins
Iontophoresis
Dendritic Spines
Globus Pallidus
Phaseolus
Lectins
Synapses
Neck
Immunohistochemistry
Head
Electrons

Keywords

  • avian telencephalon
  • calbindin
  • Golgi impregnation
  • Phaseolus vulgaris leucoagglutinin

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Termination pattern of medial hyperstriatum ventrale efferents in the archistriatum of the domestic chick. / Csillág, A.; Székely, A.; Davies, D. C.

In: Journal of Comparative Neurology, Vol. 348, No. 3, 1994, p. 394-402.

Research output: Contribution to journalArticle

@article{a9015627e6564ecaa6054e8e8a82ea73,
title = "Termination pattern of medial hyperstriatum ventrale efferents in the archistriatum of the domestic chick",
abstract = "The chick archistriatum receives afferents from the intermediate part of the medial hyperstriatum ventrale (IMHV) and projects to the lobus parolfactorius (LPO). There is functional evidence to suggest that the IMHV and the LPO are connected, but there is no anatomical evidence for a direct connection between the two structures. The aim of the current study was to characterize the termination pattern of medial hyperstriatal afferents within the archistriatum to determine whether the archistriatum may act as a relay between the IMHV and LPO. Following iontophoresis of Phaseolus vulgaris leucoagglutinin into the medial hyperstriatum ventrale (including the IMHV) of 1-week-old domestic chicks, anterogradely labelled fibers were observed to descend through the medial neostriatum and paleostriatum to enter the archistriatum. These medial hyperstriatum ventrale afferents arborised profusely to give varicose axon branches within all except the anterior part of the archistriatum. However, the greatest density was present in the ventral part of the intermediate archistriatum. Electron microscope examination of Phaseolus lectin immunocytochemistry and Golgi impregnation revealed that medial hyperstriatum ventrale axons formed multiple asymmetric synapses with dendritic spines (head and neck regions) on the terminal and preterminal dendritic segments of densely spiny archistriatal projection neurons. Medial hyperstriatum ventrale afferents were not observed to contact calbindin immunoreactive, presumptive 'local circuit' neurons, within the archistriatum, despite a spatial overlap in their distribution. These results suggest that the archistriatum may be capable of mediating the transfer of information from the IMHV to the LPO.",
keywords = "avian telencephalon, calbindin, Golgi impregnation, Phaseolus vulgaris leucoagglutinin",
author = "A. Csill{\'a}g and A. Sz{\'e}kely and Davies, {D. C.}",
year = "1994",
doi = "10.1002/cne.903480306",
language = "English",
volume = "348",
pages = "394--402",
journal = "Journal of Comparative Neurology",
issn = "0021-9967",
publisher = "Wiley-Liss Inc.",
number = "3",

}

TY - JOUR

T1 - Termination pattern of medial hyperstriatum ventrale efferents in the archistriatum of the domestic chick

AU - Csillág, A.

AU - Székely, A.

AU - Davies, D. C.

PY - 1994

Y1 - 1994

N2 - The chick archistriatum receives afferents from the intermediate part of the medial hyperstriatum ventrale (IMHV) and projects to the lobus parolfactorius (LPO). There is functional evidence to suggest that the IMHV and the LPO are connected, but there is no anatomical evidence for a direct connection between the two structures. The aim of the current study was to characterize the termination pattern of medial hyperstriatal afferents within the archistriatum to determine whether the archistriatum may act as a relay between the IMHV and LPO. Following iontophoresis of Phaseolus vulgaris leucoagglutinin into the medial hyperstriatum ventrale (including the IMHV) of 1-week-old domestic chicks, anterogradely labelled fibers were observed to descend through the medial neostriatum and paleostriatum to enter the archistriatum. These medial hyperstriatum ventrale afferents arborised profusely to give varicose axon branches within all except the anterior part of the archistriatum. However, the greatest density was present in the ventral part of the intermediate archistriatum. Electron microscope examination of Phaseolus lectin immunocytochemistry and Golgi impregnation revealed that medial hyperstriatum ventrale axons formed multiple asymmetric synapses with dendritic spines (head and neck regions) on the terminal and preterminal dendritic segments of densely spiny archistriatal projection neurons. Medial hyperstriatum ventrale afferents were not observed to contact calbindin immunoreactive, presumptive 'local circuit' neurons, within the archistriatum, despite a spatial overlap in their distribution. These results suggest that the archistriatum may be capable of mediating the transfer of information from the IMHV to the LPO.

AB - The chick archistriatum receives afferents from the intermediate part of the medial hyperstriatum ventrale (IMHV) and projects to the lobus parolfactorius (LPO). There is functional evidence to suggest that the IMHV and the LPO are connected, but there is no anatomical evidence for a direct connection between the two structures. The aim of the current study was to characterize the termination pattern of medial hyperstriatal afferents within the archistriatum to determine whether the archistriatum may act as a relay between the IMHV and LPO. Following iontophoresis of Phaseolus vulgaris leucoagglutinin into the medial hyperstriatum ventrale (including the IMHV) of 1-week-old domestic chicks, anterogradely labelled fibers were observed to descend through the medial neostriatum and paleostriatum to enter the archistriatum. These medial hyperstriatum ventrale afferents arborised profusely to give varicose axon branches within all except the anterior part of the archistriatum. However, the greatest density was present in the ventral part of the intermediate archistriatum. Electron microscope examination of Phaseolus lectin immunocytochemistry and Golgi impregnation revealed that medial hyperstriatum ventrale axons formed multiple asymmetric synapses with dendritic spines (head and neck regions) on the terminal and preterminal dendritic segments of densely spiny archistriatal projection neurons. Medial hyperstriatum ventrale afferents were not observed to contact calbindin immunoreactive, presumptive 'local circuit' neurons, within the archistriatum, despite a spatial overlap in their distribution. These results suggest that the archistriatum may be capable of mediating the transfer of information from the IMHV to the LPO.

KW - avian telencephalon

KW - calbindin

KW - Golgi impregnation

KW - Phaseolus vulgaris leucoagglutinin

UR - http://www.scopus.com/inward/record.url?scp=0028071601&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028071601&partnerID=8YFLogxK

U2 - 10.1002/cne.903480306

DO - 10.1002/cne.903480306

M3 - Article

VL - 348

SP - 394

EP - 402

JO - Journal of Comparative Neurology

JF - Journal of Comparative Neurology

SN - 0021-9967

IS - 3

ER -