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Dieter Vaitl

Justus-Liebig-Universität Gießen

3 papers in the library · 1,033 citations · publishing 2005-2013

Papers

Investigation of mindfulness meditation practitioners with voxel-based morphometry

Social Cognitive and Affective Neuroscience December 3, 2007 Britta K. Hölzel, Ulrich Ott, Tim Gard et al. 544 citations

Long-term mindfulness meditators show greater gray matter concentration in brain regions linked to interoceptive awareness and meditation, including the right anterior insula, left inferior temporal gyrus, and right hippocampus. In a comparison of 20 Vipassana meditators (averaging 8.6 years of practice, 2 hours daily) with matched non-meditators, the amount of meditation training predicted gray matter concentration in the left inferior temporal gyrus, suggesting a causal impact of practice. The findings indicate that meditation practice is associated with structural brain differences in areas typically activated during meditation and relevant to the task.

Psychobiology of Altered States of Consciousness.

Psychological Bulletin January 1, 2005 Dieter Vaitl, Niels Birbaumer, John Gruzelier et al. 446 citations

Altered states of consciousness (ASC) can occur spontaneously, be evoked by physical or physiological stimulation, induced by psychological means, or caused by diseases. Psychological and neurobiological approaches reveal four dimensions characterizing ASC: activation, awareness span, self-awareness, and sensory dynamics. Neurophysiologically, different states of consciousness arise from compromised brain structure, transient changes in brain dynamics (disconnectivity), and neurochemical and metabolic processes. Environmental stimuli, mental practices, and self-control techniques can also temporarily alter brain functioning and conscious experience.