Хозяйке на заметку: Vajrayana and Theravada meditation produce different physiological responses
Previous studies had defined meditation as a relaxation response and had attempted to categorise meditation as either involving focused or distributed attentional systems. Neither of these hypotheses received strong empirical support, and most of the studies focused on Theravada meditative practices.
Assoc Prof Kozhevnikov and Dr Amihai examined four different types of meditative practices: two types of Vajrayana meditations (Tibetan Buddhism) practices (Visualisation of self-generation-as-Deity and Rig-pa) and two types of Theravada practices (Shamatha and Vipassana). They collected electrocardiographic (EKG) and electroencephalographic (EEG) responses and also measured behavioural performance on cognitive tasks using a pool of experienced Theravada practitioners from Thailand and Nepal, as well as Vajrayana practitioners from Nepal.
They observed that physiological responses during the Theravada meditation differ significantly from those during the Vajrayana meditation. Theravada meditation produced enhanced parasympathetic activation (relaxation). In contrast, Vajrayana meditation did not show any evidence of parasympathetic activity but showed an activation of the sympathetic system (arousal).
The researchers had also observed an immediate dramatic increase in performance on cognitive tasks following only Vajrayana styles of meditation. They noted that such dramatic boost in attentional capacity is impossible during a state of relaxation. Their results show that Vajrayana and Theravada styles of meditation are based on different neurophysiological mechanisms, which give rise to either an arousal or relaxation response.
Отсюда:
http://m.medicalxpress.com/news/2014-08-reveals-vajrayana-meditation-techniques-tibetan.html
Assoc Prof Kozhevnikov and Dr Amihai examined four different types of meditative practices: two types of Vajrayana meditations (Tibetan Buddhism) practices (Visualisation of self-generation-as-Deity and Rig-pa) and two types of Theravada practices (Shamatha and Vipassana). They collected electrocardiographic (EKG) and electroencephalographic (EEG) responses and also measured behavioural performance on cognitive tasks using a pool of experienced Theravada practitioners from Thailand and Nepal, as well as Vajrayana practitioners from Nepal.
They observed that physiological responses during the Theravada meditation differ significantly from those during the Vajrayana meditation. Theravada meditation produced enhanced parasympathetic activation (relaxation). In contrast, Vajrayana meditation did not show any evidence of parasympathetic activity but showed an activation of the sympathetic system (arousal).
The researchers had also observed an immediate dramatic increase in performance on cognitive tasks following only Vajrayana styles of meditation. They noted that such dramatic boost in attentional capacity is impossible during a state of relaxation. Their results show that Vajrayana and Theravada styles of meditation are based on different neurophysiological mechanisms, which give rise to either an arousal or relaxation response.
Отсюда:
http://m.medicalxpress.com/news/2014-08-reveals-vajrayana-meditation-techniques-tibetan.html