Human anterior and frontal midline theta and lower alpha reflect emotionally positive state and internalized attention: high-resolution EEG investigation of meditation

@article{Aftanas2001HumanAA,
  title={Human anterior and frontal midline theta and lower alpha reflect emotionally positive state and internalized attention: high-resolution EEG investigation of meditation},
  author={Ljubomir I. Aftanas and S. A. Golocheikine},
  journal={Neuroscience Letters},
  year={2001},
  volume={310},
  pages={57-60}
}
EEG spectral power and coherence estimates in the individually defined delta, theta, alpha-1, alpha-2, and alpha-3 bands were used to identify and characterize brain regions involved in meditative states, in which focused internalized attention gives rise to emotionally positive "blissful" experience. Blissful state was accompanied by increased anterior frontal and midline theta synchronization as well as enhanced theta long-distant connectivity between prefrontal and posterior association… Expand
Rostral anterior cingulate activity generates posterior versus anterior theta activity linked to agentic extraversion
TLDR
The aim of the present study is to integrate lines of research by testing the hypothesis that posterior versus anterior EEG theta is at least partly based on ACC theta activity, and localized the sources of aE-dependent intracerebral theTA activity within rostral subdivisions of the ACC. Expand
Trait anxiety impact on posterior activation asymmetries at rest and during evoked negative emotions: EEG investigation.
  • L. Aftanas, S. Pavlov
  • Psychology, Medicine
  • International journal of psychophysiology : official journal of the International Organization of Psychophysiology
  • 2005
TLDR
The EEG data suggests that asymmetrical parieto-temporal theta-1 and beta-1 EEG activity might be better interpreted in terms of Gray's BAS and BIS theory. Expand
Frontal midline theta rhythm and gamma power changes during focused attention on mental calculation: an MEG beamformer analysis
TLDR
Spatially filtered MEG and permutation analysis was used to precisely localize cortical generators of the magnetic counterpart of Fmθ, as well as other sources of oscillatory activity associated with mental calculation processing (i.e., arithmetic subtraction), confirming and extended earlier EEG/MEG studies indicating that Fm θ during mental calculation is generated in the dorsal anterior cingulate and adjacent medial prefrontal cortex. Expand
Time-dependent cortical asymmetries induced by emotional arousal: EEG analysis of event-related synchronization and desynchronization in individually defined frequency bands.
TLDR
The hemispheric asymmetries revealed point to recruitment of not only posterior regions of the right hemisphere (theta and alpha-1 bands), but also of anterior areas of the left hemisphere ( theta andalpha-3 bands) in affect analysis beyond valence dimension. Expand
Estimation of valence of emotion from musically stimulated EEG using frontal theta asymmetry
TLDR
The study correlates self-response of all 41 subjects with quantitative EEG to musical stimulus and proposes a system to estimate valence of emotion for musical stimulus, which confirms the hemispheric asymmetry of frontal theta power. Expand
Creativity related cortex activity in the remote associates task
TLDR
It is proposed that widespread cortical integration of multi-component internal processing has been simultaneously mediated during creative verbal thinking and reflects intra- and inter-hemispheric communication networks with different functional relations to the RAT solving. Expand
Direct recording of theta oscillations in primate prefrontal and anterior cingulate cortices.
TLDR
A monkey model for Fm theta oscillations is developed and the generators of theta waves using electrodes implanted in various cortical areas are located and it is concluded that this theta activity may be associated with "executive attention" including self-control, internal timing, and assessment of reward. Expand
A self-referential default brain state: patterns of coherence, power, and eLORETA sources during eyes-closed rest and Transcendental Meditation practice
TLDR
Greater activation in areas that overlap the DMN during TM practice suggests that meditation practice may lead to a foundational or ‘ground’ state of cerebral functioning that may underlie eyes-closed rest and more focused cognitive processes. Expand
Frontal EEG Asymmetry and Middle Line Power Difference in Discrete Emotions
TLDR
Findings indicate that frontal EEG asymmetry and midline power might have the potential to recognize discrete emotions that are similar in the valence-arousal coordinate space. Expand
Frontal midline EEG dynamics during working memory
We show that during visual working memory, the electroencephalographic (EEG) process producing 5-7 Hz frontal midline theta (fmtheta) activity exhibits multiple spectral modes involving at leastExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 16 REFERENCES
Frontal midline theta rhythms reflect alternative activation of prefrontal cortex and anterior cingulate cortex in humans
TLDR
It is hypothesized that appearance of Fm theta during consecutive mental tasks reflects alternative activities of the medial prefrontal cortex and anterior cingulate cortex. Expand
Frontal midline theta rhythm is correlated with cardiac autonomic activities during the performance of an attention demanding meditation procedure.
TLDR
A close relationship between cardiac autonomic function and activity of medial frontal neural circuitry is suggested and both sympathetic and parasympathetic indices were increased during the appearance of Fm theta compared with control periods. Expand
Affective picture processing: event-related synchronization within individually defined human theta band is modulated by valence dimension.
TLDR
The findings document that valence discrimination is associated with the early (200-500 ms poststimulus) time-locked synchronized theta activity as well as hemispheric asymmetries in anterior-posterior direction. Expand
EEG alpha and theta oscillations reflect cognitive and memory performance: a review and analysis
  • W. Klimesch
  • Psychology, Medicine
  • Brain Research Reviews
  • 1999
Evidence is presented that EEG oscillations in the alpha and theta band reflect cognitive and memory performance in particular. Good performance is related to two types of EEG phenomena (i) a tonicExpand
Frontal midline theta rhythm and mental activity
  • K. Inanaga
  • Medicine, Psychology
  • Psychiatry and clinical neurosciences
  • 1998
TLDR
The correlation of such markers as platelet MAO activity and Fm θ with personality traits as measured by various psychological tests may prove to be of great importance in the exploration of the biological bases of personality. Expand
Non-linear dynamical coupling between different brain areas during evoked emotions: An EEG investigation
TLDR
It is concluded that estimates of the mutual dimension are sensitive to subtle aspects of emotional processing, not accessible by linear (i.e. coherence) analyses. Expand
Gamma, alpha, delta, and theta oscillations govern cognitive processes.
TLDR
It is argued that selectively distributed delta, theta, alpha and gamma oscillatory systems act as resonant communication networks through large populations of neurons and might play a major role in functional communication in the brain in relation to memory and integrative functions. Expand
Approaches to verbal, visual and musical creativity by EEG coherence analysis.
  • H. Petsche
  • Psychology, Medicine
  • International journal of psychophysiology : official journal of the International Organization of Psychophysiology
  • 1996
TLDR
Acts of creative thinking, be it verbally, visually or musically, are characterized by more coherence increases between occipital and frontopolar electrode sites than any other mental tasks. Expand
Orienting response and frontal midline theta activity: a somatosensory spectral perturbation study
TLDR
The main findings are a frontal midline activation in the theta band with the beginning of the stimulus train, which habituates during the subsequent stimulation cycles, as well as evidence that distinct effects of the first stimulus on the ongoing, non-phase-locked, theta activity exist. Expand
Induced alpha band power changes in the human EEG and attention
Induced alpha power (in a lower, intermediate and upper band) which is deprived from evoked electroencephalograph (EEG) activity was analyzed in an oddball task in which a warning signal (WS)Expand
...
1
2
...