Human Brain Mapping
May 1, 2015
Morten Joensson, Kristine Rømer Thomsen, Lau M Andersen et al.
44 citations
When experiences become meaningful to the self, they are linked to synchronous activity in a paralimbic network of self-awareness and dopaminergic activity. This network includes medial prefrontal and medial parietal/posterior cingulate cortices, where transcranial magnetic stimulation may transiently impair self-awareness. Conversely, we hypothesize that dopaminergic stimulation may improve...
Journal of Vision
February 23, 2011
H. Lou, Joshua Skewes, Kristine Rømer Thomsen et al.
83 citations
Liberal acceptance, overconfidence, and increased activity of the neurotransmitter dopamine have been proposed to account for abnormal sensory experiences, for instance, hallucinations in schizophrenia. In normal subjects, increased sensory experience in Yoga Nidra meditation is linked to striatal dopamine release. We therefore hypothesize that the neurotransmitter dopamine may function as a...
Frontiers in Psychology
2011
Hans C. Lou, Morten Joensson, Morten L. Kringelbach
18 citations
Consciousness has been proposed to play a key role in shaping flexible learning and as such is thought to confer an evolutionary advantage. Attention and awareness are the perhaps most important underlying processes, yet their precise relationship is presently unclear. Both of these processes must, however, serve the evolutionary imperatives of survival and procreation. They are thus intimately...
Human Brain Mapping
February 1, 2010
Hans C Lou, Joachim Gross, Katja Biermann-Ruben et al.
A coherent and meaningful percept of the world is essential for human nature. Consequently, much speculation has focused on how this is achieved in the brain. It is thought that all conscious experiences have reference to the self. Self-reference may either be minimal or extended, i.e., autonoetic. In minimal self-reference subjective experiences are self-aware in the weak sense that there is...
Brain research. Cognitive brain research
April 2002
Troels W Kjaer, Camilla Bertelsen, Paola Piccini et al.
This is the first in vivo demonstration of an association between endogenous neurotransmitter release and conscious experience. Using 11C-raclopride PET we demonstrated increased endogenous dopamine release in the ventral striatum during Yoga Nidra meditation. Yoga Nidra is characterized by a depressed level of desire for action, associated with decreased blood flow in prefrontal, cerebellar...
Human Brain Mapping
1999
Hans C. Lou, Troels W. Kjær, Lars Friberg et al.
28 citations
The aim of the present study was to examine whether the neural structures subserving meditation can be reproducibly measured, and, if so, whether they are different from those supporting the resting state of normal consciousness. Cerebral blood flow distribution was investigated with the 15O-H2O PET technique in nine young adults, who were highly experienced yoga teachers, during the relaxation...