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Related Experiment Videos

Primate cingulostriatal projection: limbic striatal versus sensorimotor striatal input

K Kunishio1, S N Haber

  • 1Department of Neurobiology and Anatomy, University of Rochester of Medicine, New York 14642.

The Journal of Comparative Neurology
|December 15, 1994
PubMed
Summary

This study maps primate cingulate cortex projections to the striatum. Findings reveal distinct topographical organization, linking specific cingulate areas to ventral (limbic) and dorsal (sensorimotor) striatal functions.

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Area of Science:

  • Neuroscience
  • Primate Neuroanatomy

Background:

  • The cingulate cortex and striatum are crucial for motor control, emotion, and cognition.
  • Understanding their interconnectedness is key to deciphering brain function.

Purpose of the Study:

  • To delineate the topographical organization of projections from the primate cingulate cortex to the ventral and dorsal striatum.
  • To identify specific cingulate subdivisions projecting to distinct striatal regions.

Main Methods:

  • Utilized retrograde tracers (Lucifer Yellow, WGA-HRP) injected into ventral and dorsal striatal regions in monkeys.
  • Employed calbindin-D28K immunohistochemistry to define the nucleus accumbens shell.

Main Results:

  • Demonstrated a topographical organization of cingulate projections to the striatum.

Related Experiment Videos

  • Medial ventral striatum and nucleus accumbens shell receive input from rostral anterior cingulate cortex (areas 25, 24a,b).
  • Dorsal sensorimotor striatum receives input from posterior cingulate areas (24c, 23c, 31) and cingulate sulcus banks/fundus.

    • Conclusions:

    • Cingulate cortex projections to the striatum are topographically organized and segregated.
    • Specific cingulate subdivisions are differentially connected to ventral (limbic) and dorsal (sensorimotor) striatum, suggesting distinct functional roles.