Thalamostriatal neurons with collateral projection onto the rostral reticular thalamic nucleus: anatomical study in the rat by retrograde axonal transport of iron-dextran and horseradish peroxidase

Injection of horseradish peroxidase (HRP) into the head of the reticular thalamic nucleus (RT) of rats having undergone large cortical and striatal lesions, led to the labeling of thalamic neurons in medial thalamic nuclei. After injection of iron-dextran into the corpus striatum and HRP into the rostral RT of intact rats, double-labeled neurons were observed in the medial thalamus, mainly in the central lateral nucleus.