The reticular thalamic nucleus projects to the contralateral dorsal thalamus in macaque monkey.
This study demonstrates, using the retrograde transport of horseradish peroxidase conjugated to the lectin wheat germ-agglutinin (WGA-HRP), that the reticular thalamic nucleus (RE) projects to the contralateral dorsal thalamus in macaque monkeys. Retrogradely labeled neurons were found in the RE nucleus following WGA-HRP injections confined to the contralateral dorsal thalamus. In light of the currently hypothesized role of the RE nucleus in the genesis of spindling rhythmicity during EEG-synchronized sleep, this findings suggests that the RE nucleus contributes to the bilateral synchrony of spindle waves through its contralateral dorsal thalamic projection.
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Laboratoire de Neurophysiologie, Faculté de Médecine, Université Laval, Quebec, Canada.
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D000818:Animals; D004569:Electroencephalography; D006651:Histocytochemistry; D006735:Horseradish Peroxidase; D008251:Macaca; D009434:Neural Pathways / Q000166:cytology / Q000502:physiology; D012154:Reticular Formation / Q000166:cytology / Q000502:physiology; D013787:Thalamic Nuclei / Q000166:cytology / Q000502:physiology*; D013788:Thalamus / Q000166:cytology / Q000502:physiology*; D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins
D018998:Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate; D014909:Wheat Germ Agglutinins; D006735:Horseradish Peroxidase