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Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory
Published on: May 11, 2020
Mid-latency auditory evoked potentials in 2 meditative states.
Shirley Telles1, Bhat Ramachandra Raghavendra, Kalkuni Visweswaraiah Naveen
1ICMR Center for Advanced Research in Yoga and Neurophysiology, S-VYASA University, Bengaluru, India. shirleytelles@gmail.com
Clinical EEG and Neuroscience
|June 21, 2012
Summary
Meditation significantly delayed auditory information processing, as shown by prolonged mid-latency auditory evoked potentials (MLAEPs) Na and Pa waves. Meditative focusing did not show this effect.
Area of Science:
- Neuroscience
- Cognitive Science
- Psychology
Background:
- Traditional yoga texts describe distinct mental states.
- Understanding the neural correlates of these states is crucial.
Purpose of the Study:
- To investigate the impact of different yoga-related mental states on auditory processing.
- To differentiate the neural effects of meditation versus meditative focusing.
Main Methods:
- Mid-latency auditory evoked potentials (MLAEPs) were recorded in 60 participants.
- MLAEPs were assessed during four mental states: random thinking, nonmeditative-focused thinking, meditative focusing, and meditation.
- Assessments were conducted before, during, and after each mental state over four separate days.
Main Results:
- Prolonged latencies of the Na and Pa waves of MLAEPs were observed during meditation (P < .05).
- These findings suggest a delay in auditory information transmission in the medial geniculate and primary auditory cortex during meditation.
- Meditative focusing did not produce significant changes in MLAEPs.
Conclusions:
- Meditation influences auditory information processing, specifically delaying neural transmission.
- The neural effects observed during meditation were not replicated during meditative focusing.
- These results provide objective neurophysiological evidence for the distinct impact of meditation on brain function.
