Mindfulness (Vipassana) meditation: Effects on P3b event-related potential and heart rate variability

Autor: Pailoor Subramanya, Jaime Vila, Shirley Telles, Luis Carlos Delgado-Pastor, Pandelis Perakakis
Rok vydání: 2013
Předmět:
Zdroj: International Journal of Psychophysiology. 90:207-214
ISSN: 0167-8760
DOI: 10.1016/j.ijpsycho.2013.07.006
Popis: The concept of mindfulness is based on Vipassana, a Buddhist meditation technique. The present study examines the physiological indices of attention and autonomic regulation in experienced Vipassana meditators to test the claim that mindfulness is an effective therapeutic tool due to its effects on increasing awareness of present experience and emotional self-regulation. Ten male experienced Vipassana meditators underwent two assessment sessions, one where they practiced Vipassana meditation and another where they rested with no meditation (random thinking). Each meditation/no-meditation session lasted 30 min and was preceded and followed by an auditory oddball task with two tones (standard and target). Event-related potentials to the tones were recorded at the Fz, Cz, and Pz locations. Heart rate variability, derived from an EKG, was recorded continuously during the meditation/no-meditation sessions and during a 5-minute baseline before the task. The Vipassana experts showed greater P3b amplitudes to the target tone after meditation than they did both before meditation and after the no-meditation session. They also showed a larger LF/HF ratio increase during specific Vipassana meditation. These results suggest that expert Vipassana meditators showed increased attentional engagement after meditation and increased autonomic regulation during meditation supporting, at least partially, the two claims concerning the clinical effectiveness of mindfulness.
Databáze: OpenAIRE