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. 1982 Dec 9;252(2):367-72.
doi: 10.1016/0006-8993(82)90404-8.

Projections of the pedunculopontine tegmental nucleus in the rat: evidence for additional extrapyramidal circuitry

C B Saper, A D Loewy

Projections of the pedunculopontine tegmental nucleus in the rat: evidence for additional extrapyramidal circuitry

C B Saper et al. Brain Res. .

Abstract

The projections of the pedunculopontine tegmental nucleus (PPT) were studied in the rat using anterograde and retrograde transport methods. Ascending fibers to the substantia nigra, the subthalamic nucleus, the globus pallidus, the entopeduncular nucleus, the neostriatum, the ventral thalamus, and the medial and sulcal frontal cortical areas were identified. PPT has been reported to receive afferents from the substantia nigra, the subthalamic nucleus, the entopeduncular nucleus and the neostriatum. The connections of PPT provide an additional limb to extrapyramidal circuitry.

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