The subparafascicular thalamic nucleus of the rat receives projection fibers from the inferior colliculus and auditory cortex.
The sources of afferent fibers to the subparafascicular thalamic nucleus (SPF) of the rat were investigated by the retrograde WGA-HRP and anterograde PHA-L methods. Layer V of the areas 3, 1 and 2 of the temporal cortex as well as the dorsal and external cortices of the inferior colliculus were found to send projection fibers to the whole rostrocaudal extent of the SPF bilaterally with a clear-cut ipsilateral dominance. The results indicate that the SPF of the rat may constitute a relay nucleus in the central auditory pathways.
Yasui
Y
Y
Department of Anatomy (1st Division), Mie University School of Medicine, Japan.
Kayahara
T
T
Nakano
K
K
Mizuno
N
N
D000818:Animals; D001303:Auditory Cortex / Q000166:cytology / Q000502:physiology*; D006735:Horseradish Peroxidase; D007245:Inferior Colliculi / Q000166:cytology / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D009475:Neurons, Afferent / Q000502:physiology; D010835:Phytohemagglutinins; D051381:Rats; D013787:Thalamic Nuclei / Q000166:cytology*; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins
D010835:Phytohemagglutinins; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins; D006735:Horseradish Peroxidase