[Properties of thalamocortical cells identified by antidromic stimulation in the ventrolateral and ventrobasal thalamic nuclei in rats].
The physiological and pharmacological properties of thalamocortical neurons, identified by electrical antidromic stimulation of the frontoparietal cortex, were studied in the ventrobasal and ventrolateral thalamic nuclei in urethane anaesthetized rats. The spontaneous activity and conduction velocity of these neurons were similar in both nuclei. At both sites, thalamocortical neurons could be excited through iontophoretic application of acetylcholine and muscarinic or nicotinic agonists. Despite the known differences in thalamic organization of the two species, these properties are quite similar to those described in cat by other authors.
D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D002217:Carbachol / Q000494:pharmacology; D002540:Cerebral Cortex / Q000187:drug effects; D002794:Choline / Q000031:analogs & derivatives / Q000494:pharmacology; D005071:Evoked Potentials; D008297:Male; D009474:Neurons / Q000187:drug effects / Q000502:physiology*; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D013787:Thalamic Nuclei / Q000166:cytology / Q000187:drug effects / Q000502:physiology*
D000644:Quaternary Ammonium Compounds; C017100:butyrylcholine; D002217:Carbachol; C027917:tetramethylammonium; D002794:Choline; D000109:Acetylcholine
Propriétés des cellules thalamocorticales identifiées par stimulation antidromique dans les noyaux thalamiques ventrolatéral et ventrobasal chez le Rat.