论文信息 - Periaqueductal gray neuronal activity associated with laryngeal EMG and vocalization in the awake monkey

Periaqueductal gray neuronal activity associated with laryngeal EMG and vocalization in the awake monkey

Extracellular recordings were made from 73 periaqueductal gray (PAG) neurons in an awake, vocalizing monkey (Macaca fascicularis). About 50% of the neurons were inactive and only began discharging prior to laryngeal EMG activity and vocalization; they reached their peak firing rate near the onset of vocalization and then became inactive again. Spike-triggered averaging of laryngeal EMG from the PAG unit discharge revealed in most cases an increase in laryngeal EMG immediately following the unit spike. Other cells appeared to be related to other oral-facial behaviors. The role of the PAG in vocalization is discussed.

Charles R. Larson | C. Larson | M. Kistler | Michael K. Kistler

[1] P. D. Cheney,et al. Corticomotoneuronal connections of precentral cells detected by post-spike averages of EMG activity in behaving monkeys , 1976, Brain Research.

[2] J. O'leary,et al. Experimental mutism resulting from periaqueductal lesions in cats , 1959, Neurology.

[3] J. Oliveras,et al. Inhibition of the jaw opening reflex by electrical stimulation of the periaqueductal gray matter in the awake, unrestrained cat. , 1974 .

[4] F. Gibbs,et al. A purring center in the cat's brain , 1936 .

[5] U. Jürgens,et al. Role of the periaqueductal grey in vocal expression of emotion , 1979, Brain Research.

[6] M. C. Kennedy. Vocalization elicited in a lizard by electrical stimulation of the midbrain , 1975, Brain Research.

[7] U. Jürgens,et al. Cortical lesion effects and vocalization in the squirrel monkey , 1982, Brain Research.

[8] S. W. Ranson,et al. Associated Facial, Vocal and Respiratory Components of Emotional Expression: An Experimental Study* , 1937, The Journal of neurology and psychopathology.

[9] Y. Hosobuchi. Periaqueductal gray stimulation in humans produces analgesia accompanied by elevation of beta-endorphin and ACTH in ventricular CSF. , 1981, Modern problems of pharmacopsychiatry.