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Alterations of auditory middle latency evoked potentials during yogic consciously regulated breathing and attentive state of mind
International journal of psychophysiology : official journal of the International Organization of Psychophysiology
Short Title: Int.J.Psychophysiol.
Format: Journal Article
Publication Date: Nov 30, 1992
Pages: 189 - 198
Sources ID: 30956
Notes: LR: 20180323; JID: 8406214; 1993/05/01 00:00 [pubmed]; 1993/05/01 00:01 [medline]; 1993/05/01 00:00 [entrez]; ppublish
Visibility: Public (group default)
Abstract: (Show)
Middle latency auditory-evoked potentials (AEP-MLRs) of 10 healthy male subjects in the age range of 21-33 years, were assessed to determine whether yogic pranayamic practice would cause changes in them. The pranayama type assessed here is an exercise of consciously-controlled rhythmic breathing involving timed breath-holding in each cycle of breathing, while the subject holds utmost attention and experiences the touch of inhaled air in the nasal passage. The results revealed that the Na-wave amplitude increased and latency decreased during the period of pranayamic practice, whereas the Pa-wave was not significantly altered. The change is interpreted as an indication of a generalized alteration cause in information processing at the primary thalamo-cortical level during the concentrated mental exercise of inducing modifications in neural mechanisms regulating a different functional system (respiratory). Further researches are required to understand the operational significances of such changes.