Frontiers in Psychology
December 22, 2021
Debananda S. Ningthoujam, Nilkamal Singh, S. Mukherjee
Yoga is an ancient spiritual practice which originated from India. In recent decades, there has been increasing interest in yoga, mainly because of its applications in health andwellness. Among various techniques of yoga, the practice of meditation has been found to cause several psychophysiological effects. Most meditation techniques are practiced in a stable and comfortable posture but there...
Clinical EEG and Neuroscience
May 1, 2019
Shirley Telles, Deepeshwar Singh, Kv Naveen et al.
Sympathetic activation is required for attention. Separate studies have shown that meditation ( a) improves attention and ( b) reduces sympathetic activity. The present study assessed attention with the P300 and sympathetic activity with heart rate variability (HRV). Forty-seven male subjects (group mean age ± SD, 21.6 ± 3.4 years) were assessed in 4 mental states: ( a) random thinking, ( b)...
Journal of Ayurveda and Integrative Medicine
October 1, 2016
Shirley Telles, Nilkamal Singh, Ram Kumar Gupta et al.
24 citations
Attention is an important part of the process of meditation. Traditional Yoga texts describe two stages of meditation which follow each other in sequence. These are meditative focusing (dharana in Sanskrit) and effortless meditation (dhyana in Sanskrit). This review evaluated eight experimental studies conducted on participants in normal health, who practiced dharana and dhyana. The studies...
Frontiers in Systems Neuroscience
October 8, 2015
Shirley Telles, Nilkamal Singh, Acharya Balkrishna
These findings showed that different meditations are associated with distinct neural activity during sustained attention and processing emotions. Hence, meditation causes changes in parts of the brain and modifies brain activity, in distinct ways based on the meditation technique. To our knowledge no study has checked whether detachment and empathy can co-exist as a result of meditation; and...
BioMed Research International
June 7, 2015
Nilkamal Singh, Shirley Telles
Evoked potentials (EPs) are a relatively noninvasive method to assess the integrity of sensory pathways. As the neural generators for most of the components are relatively well worked out, EPs have been used to understand the changes occurring during meditation. Event-related potentials (ERPs) yield useful information about the response to tasks, usually assessing attention. A brief review of...
2014
Shirley Telles, Nilkamal Singh, Kv Naveen et al.
Objectives: Meditation is described in traditional yoga texts as three stages, which follow each other in sequence: (i) Focused attention (FA), (ii) Focused attention on the object of meditation (MF), and (iii) Meditation with one-pointed focused attention without effort (ME). When not in meditation the mind is considered to be in a state of normal consciousness characterized by random thinking...