Absence of consciousness can occur due to a concussion, anesthetization, intoxication, epileptic seizure, or other fainting/syncope episode caused by lack of blood flow to the brain. However, some meditation practitioners also report that it is possible to undergo a total absence of consciousness during meditation, lasting up to 7 days, and that these “cessations” can be consistently induced. One form of extended cessation (i.e., nirodha samāpatti) is thought to be different from sleep because practitioners are said to be completely impervious to external stimulation. That is, they cannot be ‘woken up’ from the cessation state as one might be from a dream. Cessations are also associated with the absence of any time experience or tiredness, and are said to involve a stiff rather than a relaxed body. Emergence from meditation-induced cessations is said to have profound effects on subsequent cognition and experience (e.g., resulting in a sudden sense of clarity, openness, and possibly insights). In this paper, we briefly outline the historical context for cessation events, present preliminary data from two labs, set a research agenda for their study, and provide an initial framework for understanding what meditation induced cessation may reveal about the mind and brain. We conclude by integrating these so-called nirodha and nirodha samāpatti experiences—as they are known in classical Buddhism—into current cognitive-neurocomputational and active inference frameworks of meditation.
Introduction
Many unique states of mind have been described by meditators and contemplatives. These can range from ecstatic and mystical absorptions to out-of-body experiences, and even states of so-called pure consciousness (Metzinger, 2020). However, as yet, no scientific papers that we are aware of have explored a meditation-induced event known in Pāli (the liturgical language of Theravada Buddhism) as nirodha samāpatti (NS), which literally means “cessation attainment,” but often is rendered as “cessation of feeling and perception” (Nanamoli and Bodhi, 1995). Compared to other non-ordinary experiences that scientists might be tempted to dismiss due to their inherently subjective and variable nature, the NS experience is concrete: an internally induced absence of consciousness. The event is outwardly comparable to general anesthesia and differentiated from deep sleep in that after a NS event there is no sensation of time having passed, there are no dreams, and one cannot be ‘woken up’ by physical stimulation or pain (Nanamoli and Bodhi, 1995).a Clearly, in terms of understanding the mind and brain, the capacity to voluntarily turn off consciousness, analogously to general anesthesia, is immensely interesting, also given how rare the capacity is and its implications for our understanding of top-down processing in the brain.b There are also notable after-effects of NS (and other cessation) experiences involving a profound sense of clarity, which some meditators describe as a kind of inner “reset,” which further differentiates this experience from (coming out of) sleep or general anesthesia.
The full paper:
__________
I am not well-versed in nirodha samāpatti, but I do believe that Buddhist practice at its best involves some form of serious, consistent meditation practice. ABN
American Buddhist Net 