EEG source imaging during two Qigong meditations

Faber, Pascal L.; Lehmann, Dietrich; Tei, Shisei; Tsujiuchi, Takuya; Kumano, Hiroaki; Pascual-Marqui, Roberto D.; Kochi, Kieko

doi:10.1007/s10339-012-0441-4

Cited by 22 publications

(29 citation statements)

References 105 publications

(119 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increased theta band power has been associated with three psychological functions: (a) the so-called frontal midline theta (Fm theta), which is generally related to cognitive effort, working memory, and emotion processing (Gevins et al, 1997; Sammler et al, 2007; Maurer et al, 2015; Wisniewski et al, 2015); (b) the widespread theta most prominent at the frontal and parietal scalp locations, which is associated with low-level alertness, drowsiness, and “mind-wandering” (Braboszcz and Delorme, 2011; Platt and Riedel, 2011; Baumeister et al, 2012; Park et al, 2014; Poudel et al, 2014); and (c) the widespread theta with parietal dominance, which has been related to the effective encoding of new memories (Klimesch, 1999). Theta increases have also been reported during meditation (Lagopoulos et al, 2009; Baijal and Srinivasan, 2010; Faber et al, 2012). The theta band power increase in our study was more widespread but also with a strong power increase over frontal midline EOIs.…”

Section: Discussionmentioning

confidence: 71%

“…This is consistent with findings demonstrating strong alpha power increases during such processes, which are characterized by redirecting attention from external events to internal thoughts. Typical examples of such psychological processes are meditation (Aftanas and Golocheikine, 2001; Faber et al, 2012); effortful cognition, such as perception of degraded speech (Weisz et al, 2011); imagination (Cooper et al, 2003; Schaefer et al, 2011b); creative thinking (Benedek et al, 2011); working memory tasks (Klimesch, 1999; Palva and Palva, 2007); or during unconstrained music listening (Iwaki et al, 1997; Schaefer et al, 2011b; Jancke et al, 2015). Previously, we speculated that this could indicate a “dragging into the music” while simultaneously neglecting other stimuli or even thoughts (Jancke et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Task Context Influences Brain Activation during Music Listening

Markovic

Kühnis

Jäncke

2017

Front. Hum. Neurosci.

View full text Add to dashboard Cite

In this paper, we examined brain activation in subjects during two music listening conditions: listening while simultaneously rating the musical piece being played [Listening and Rating (LR)] and listening to the musical pieces unconstrained [Listening (L)]. Using these two conditions, we tested whether the sequence in which the two conditions were fulfilled influenced the brain activation observable during the L condition (LR → L or L → LR). We recorded high-density EEG during the playing of four well-known positively experienced soundtracks in two subject groups. One group started with the L condition and continued with the LR condition (L → LR); the second group performed this experiment in reversed order (LR → L). We computed from the recorded EEG the power for different frequency bands (theta, lower alpha, upper alpha, lower beta, and upper beta). Statistical analysis revealed that the power in all examined frequency bands increased during the L condition but only when the subjects had not had previous experience with the LR condition (i.e., L → LR). For the subjects who began with the LR condition, there were no power increases during the L condition. Thus, the previous experience with the LR condition prevented subjects from developing the particular mental state associated with the typical power increase in all frequency bands. The subjects without previous experience of the LR condition listened to the musical pieces in an unconstrained and undisturbed manner and showed a general power increase in all frequency bands. We interpret the fact that unconstrained music listening was associated with increased power in all examined frequency bands as a neural indicator of a mental state that can best be described as a mind-wandering state during which the subjects are “drawn into” the music.

show abstract

Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Task Context Influences Brain Activation during Music Listening

Markovic

Kühnis

Jäncke

2017

Front. Hum. Neurosci.

View full text Add to dashboard Cite

show abstract

“…4). Indeed, Faber et al (2012) discuss the question, “Why are there so few systematic reports on subjective experience during meditation,” and emphasize that “it could be very useful in sorting out brain states of different cogitations” (p. 262). In this study, we have shown how such reports can be utilized in a productive way, both to aid in interpreting brain activity during these unique states, but also to learn more about these states, from the systematic self observations of our meditators.…”

Section: Discussionmentioning

confidence: 99%

Alterations in the sense of time, space, and body in the mindfulness-trained brain: a neurophenomenologically-guided MEG study

et al. 2013

View full text Add to dashboard Cite

Meditation practice can lead to what have been referred to as “altered states of consciousness.”One of the phenomenological characteristics of these states is a joint alteration in the sense of time, space, and body. Here, we set out to study the unique experiences of alteration in the sense of time and space by collaborating with a select group of 12 long-term mindfulness meditation (MM) practitioners in a neurophenomenological setup, utilizing first-person data to guide the neural analyses. We hypothesized that the underlying neural activity accompanying alterations in the sense of time and space would be related to alterations in bodily processing. The participants were asked to volitionally bring about distinct states of “Timelessness” (outside time) and “Spacelessness” (outside space) while their brain activity was recorded by MEG. In order to rule out the involvement of attention, memory, or imagination, we used control states of “Then” (past) and “There” (another place). MEG sensors evidencing alterations in power values were identified, and the brain regions underlying these changes were estimated via spatial filtering (beamforming). Particularly, we searched for similar neural activity hypothesized to underlie both the state of “Timelessness” and “Spacelessness.” The results were mostly confined to the theta band, and showed that: (1) the “Then”/“There” overlap yielded activity in regions related to autobiographic memory and imagery (right posterior parietal lobule (PPL), right precentral/middle frontal gyrus (MFG), bilateral precuneus); (2) “Timelessness”/“Spacelessness” conditions overlapped in a different network, related to alterations in the sense of the body (posterior cingulate, right temporoparietal junction (TPJ), cerebellum); and (3) phenomenologically-guided neural analyses enabled us to dissociate different levels of alterations in the sense of the body. This study illustrates the utility of employing experienced contemplative practitioners within a neurophenomenological setup for scientifically characterizing a self-induced altered sense of time, space and body, as well as the importance of theta activity in relation with these altered states.

show abstract

“…Source imaging from EEG during meditation is another prominent research domain. In [15], alpha activity was more prominent in parietal Brodmann area's 5, 7, 31 & 40 in right hemisphere, and beta activity was more prominent in prefrontal Brodmann area's 6,8 & 9, during Qi-Gong meditation, than Nothinking states. Similarly, globally reduced functional coherence was observed in 19 cortical regions during 5 different meditation traits, such as TM, Zen, Qi-Gong, Sahaja Yoga etc.…”

Section: Introductionmentioning

confidence: 83%

“…Changes in Electro-encephalogram (EEG) of a person, both in time domain and frequency domain, as well as the changes in corresponding cortical sources, during different meditation practices like Transcendental Meditation (TM) [1], Qi-Gong [2], Zen [3], Sahaja Yoga [4] etc. have been explored, to obtain a better understanding of the effects of Meditation.…”

Section: Introductionmentioning

confidence: 99%

Use of data driven optimal filter to obtain significant trend present in frequency domain parameters for scalp EEG captured during meditation

Chaudhuri

Nayak

Routray

2014

Proceedings of the 2014 IEEE Students' Technology Symposium

View full text Add to dashboard Cite

The Scalp EEG is a large-scale & robust information source about neocortical dynamic functions. In this paper, we analyze a scalp Electro Encephalogram (EEG) database of 33 human subjects during the cognitive activity of Meditation, specifically Kriya Yoga. The information measures such as Renyi, Shannon entropies and Relative Energy of the different EEG Bands such as Alpha, Beta, & delta of scalp EEG captured at specific electrodes are calculated for all subjects for the entire duration of Meditation. These frequency domain parameters are obtained as sequences corresponding to the dynamical activity of Meditation and are found to have a hidden dominant trend with many variations present which make the problem of Identification of the dominant trend a difficult problem. Here use of a data driven optimal filter has been employed to find out the dominant trend, and found to yield a clear monotonic change in the frequency parameters. This monotonic sequencecan easily assumed to be corresponding to the dynamic activity during Meditation.

show abstract

EEG source imaging during two Qigong meditations

Cited by 22 publications

References 105 publications

Task Context Influences Brain Activation during Music Listening

Task Context Influences Brain Activation during Music Listening

Alterations in the sense of time, space, and body in the mindfulness-trained brain: a neurophenomenologically-guided MEG study

Use of data driven optimal filter to obtain significant trend present in frequency domain parameters for scalp EEG captured during meditation

Contact Info

Product

Resources

About