[Afferent brain stem connections of the hypothalamic locomotor area of the cat brain]

Afferent brainstem projections to the functionally identified hypothalamic locomotor region were studied in cat by means of the horse-radish peroxidase technique. Cells of origin of such projections were found bilaterally in the different brainstem structures. Most of these cells were found in sites of location of monoaminergic systems (nucleus reticularis lateralis, locus coeruleus, nucleus tractus solitarius, raphe nuclei, substantia grisea centralis) parabrachial and certain sensory nuclei of the brainstem. The hypothalamic locomotor regions have mutual bilateral interconnections.