Cortical and medullary somatosensory projections to the cochlear nuclear complex in the hedgehog tenrec.

Abstract:

:Various tracer substances were injected into the spinal cord, the dorsal column nuclei, the trigeminal nuclear complex and the somatosensory cortex in Madagascan hedgehog tenrecs. With the exception of the cases injected exclusively into the spinal cord all injections gave rise to sparse, but distinct anterograde projections to the cochlear nuclear complex, particularly the granular cell domain within and outside of the dorsal cochlear nucleus. Among these cochlear afferents the projection from the primary somatosensory cortex is the most remarkable because the hedgehog tenrec has one of the lowest encephalisation indices among mammals and a similar cortico-cochlear connection has not been demonstrated so far in other species.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Wolff A,Künzle H

doi

10.1016/s0304-3940(96)13305-x

subject

Has Abstract

pub_date

1997-01-17 00:00:00

pages

125-8

issue

2-3

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(96)13305-X

journal_volume

221

pub_type

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