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The nigrotectal projection in the cat: an electron microscope autoradiographic study.

Publication ,  Journal Article
Behan, M; Lin, CS; Hall, WC
Published in: Neuroscience
May 1987

Recent evidence indicates that the nigrotectal tract plays an important role in regulating the premotor responses of cells in the in the intermediate gray layer of the superior colliculus. The purpose of the present study was to characterize the ultrastructure of nigrotectal terminals and of their postsynaptic targets in the intermediate gray layer. Nigrotectal terminals were identified in the electron microscope by labeling them autoradiographically, following injections of tritiated proline into the substantia nigra pars reticulata. The majority of nigrotectal terminals contain a high proportion of pleomorphic vesicles and form symmetrical synaptic contacts. Most of these terminals synapse with small dendritic profiles (2.00 micron +/- 0.83 SD), which may be the distal dendrites of neurons in the intermediate gray layer. Less than 10% of the labeled contacts are made with cell bodies or initial axonal segments.

Duke Scholars

Published In

Neuroscience

DOI

ISSN

0306-4522

Publication Date

May 1987

Volume

21

Issue

2

Start / End Page

529 / 539

Location

United States

Related Subject Headings

  • gamma-Aminobutyric Acid
  • Synaptic Transmission
  • Superior Colliculi
  • Substantia Nigra
  • Neurology & Neurosurgery
  • Neural Pathways
  • Neural Inhibition
  • Microscopy, Electron
  • Cats
  • Autoradiography
 

Citation

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ICMJE
MLA
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Behan, M., Lin, C. S., & Hall, W. C. (1987). The nigrotectal projection in the cat: an electron microscope autoradiographic study. Neuroscience, 21(2), 529–539. https://doi.org/10.1016/0306-4522(87)90139-4
Behan, M., C. S. Lin, and W. C. Hall. “The nigrotectal projection in the cat: an electron microscope autoradiographic study.Neuroscience 21, no. 2 (May 1987): 529–39. https://doi.org/10.1016/0306-4522(87)90139-4.
Behan M, Lin CS, Hall WC. The nigrotectal projection in the cat: an electron microscope autoradiographic study. Neuroscience. 1987 May;21(2):529–39.
Behan, M., et al. “The nigrotectal projection in the cat: an electron microscope autoradiographic study.Neuroscience, vol. 21, no. 2, May 1987, pp. 529–39. Pubmed, doi:10.1016/0306-4522(87)90139-4.
Behan M, Lin CS, Hall WC. The nigrotectal projection in the cat: an electron microscope autoradiographic study. Neuroscience. 1987 May;21(2):529–539.
Journal cover image

Published In

Neuroscience

DOI

ISSN

0306-4522

Publication Date

May 1987

Volume

21

Issue

2

Start / End Page

529 / 539

Location

United States

Related Subject Headings

  • gamma-Aminobutyric Acid
  • Synaptic Transmission
  • Superior Colliculi
  • Substantia Nigra
  • Neurology & Neurosurgery
  • Neural Pathways
  • Neural Inhibition
  • Microscopy, Electron
  • Cats
  • Autoradiography