Abstract
Many meditation exercises aim at increased awareness of ongoing experiences through sustained attention and at detachment, i.e., non-engaging observation of these ongoing experiences by the intent not to analyze, judge or expect anything. Long-term meditation practice is believed to generalize the ability of increased awareness and greater detachment into everyday life. We hypothesized that neuroplasticity effects of meditation (correlates of increased awareness and detachment) would be detectable in a no-task resting state. EEG recorded during resting was compared between Qigong meditators and controls. Using LORETA (low resolution electromagnetic tomography) to compute the intracerebral source locations, differences in brain activations between groups were found in the inhibitory delta EEG frequency band. In the meditators, appraisal systems were inhibited, while brain areas involved in the detection and integration of internal and external sensory information showed increased activation. This suggests that neuroplasticity effects of long-term meditation practice, subjectively described as increased awareness and greater detachment, are carried over into non-meditating states.
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Aftanas L, Golosheykin S (2005) Impact of regular meditation practice on EEG activity at rest and during evoked negative emotions. Int J Neurosci 115(6):893–909
Banquet JP (1973) Spectral analysis of the EEG in meditation. Electroencephalogr Clin Neurophysiol 35(2):143–151
Blanke O, Arzy S (2005) The out-of-body experience: disturbed self-processing at the temporo-parietal junction. Neuroscientist 11(1):16–24
Cahn BR, Polich J (2006) Meditation states and traits: EEG, ERP, and neuroimaging studies. Psychol Bull 132(2):180–211
Cardoso R, de Souza E, Camano L, Leite JR (2004) Meditation in health: an operational definition. Brain Res Brain Res Protoc 14(1):58–60
Coppola R, Herrmann WM (1987) Psychotropic drug profiles: comparisons by topographic maps of absolute power. Neuropsychobiology 18(2):97–104
Corbetta M, Kincade JM, Ollinger JM, McAvoy MP, Shulman GL (2000) Voluntary orienting is dissociated from target detection in human posterior parietal cortex. Nat Neurosci 3(3):292–297
Das NN, Gastaut HC (1957) Variations de l’activité électrique du cerveau, du coeur et des muscles squelletiques au cours de la méditation et de l’extase yogique. Variations of the electrical activity of the brain, heart, and skeletal muscles during yogic meditation and trance. Electroencephalogr Clin Neurophysiol (Suppl 6):211–219
Davidson RJ, Kabat-Zinn J, Schumacher J, Rosenkranz M, Muller D, Santorelli SF, Urbanowski F, Harrington A, Bonus K, Sheridan JF (2003) Alterations in brain and immune function produced by mindfulness meditation. Psychosom Med 65(4):564–570
Deikman AJ (1963) Experimental meditation. J Nerv Ment Dis 136:329–343
Downar J, Crawley AP, Mikulis DJ, Davis KD (2000) A multimodal cortical network for the detection of changes in the sensory environment. Nat Neurosci 3(3):277–283
Ernst M, Nelson EE, McClure EB, Monk CS, Munson S, Eshel N, Zarahn E, Leibenluft E, Zametkin A, Towbin K, Blair J, Charney D, Pine DS (2004) Choice selection and reward anticipation: an fMRI study. Neuropsychologia 42(12):1585–1597
Faber PL, Steiner ME, Lehmann D, Pascual-Marqui RD, Jäncke L, Esslen M, Gianotti LRR (2008) Deactivation of the medial prefrontal cortex in experienced Zen meditators. Abstract. Brain Topogr 20:172
Frei E, Gamma A, Pascual-Marqui R, Lehmann D, Hell D, Vollenweider FX (2001) Localization of MDMA-induced brain activity in healthy volunteers using low resolution brain electromagnetic tomography (LORETA). Hum Brain Mapp 14(3):152–165
Friston KJ, Frith CD, Liddle PF, Dolan RJ, Lammertsma AA, Frackowiak RS (1990) The relationship between global and local changes in PET scans. J Cereb Blood Flow Metab 10(4):458–466
Friston KJ, Frith CD, Liddle PF, Frackowiak RSJ (1991) Comparing functional (PET) images: the assessment of significant change. J Cereb Blood Flow Metab 11:690–699
Gianotti LR, Knoch D, Faber PL, Lehmann D, Pascual-Marqui RD, Diezi C, Schoch C, Eisenegger C, Fehr E (2009) Tonic activity level in the right prefrontal cortex predicts individuals’ risk taking. Psychol Sci 20(1):33–38
Gigi A, Babai R, Katzav E, Atkins S, Hendler T (2007) Prefrontal and parietal regions are involved in naming of objects seen from unusual viewpoints. Behav Neurosci 121(5):836–844
Gusnard DA, Raichle ME, Raichle ME (2001) Searching for a baseline: functional imaging and the resting human brain. Nat Rev Neurosci 2(10):685–694
Hebert R, Lehmann D (1977) Theta bursts: an EEG pattern in normal subjects practising the transcendental meditation technique. Electroencephalogr Clin Neurophysiol 42(3):397–405
Itoh M, Miyazaki H, Takahashi Y (1996) Imaging of mind using positron emission tomography. J Intl Soc Life Info Sci 14(1):76–80
Jasper HH (1958) The ten-twenty electrode system of the international federation. Electroencephalogr Clin Neurophysiol 10:371–375
Kiebel SJ, Holmes AP (2004) The general linear model. In: Friston KJ, Ashburner J, Penny WD (eds) Human brain function, 2nd edition, part II—imaging neuroscience—theory and analysis. Elsevier, Amsterdam, pp 101–125
Kubicki S, Herrmann WM, Fichte K, Freund G (1979) Reflections on the topics: EEG frequency bands and regulation of vigilance. Pharmakopsychiatry 12:237–245
Kufahl P, Li Z, Risinger R, Rainey C, Piacentine L, Wu G, Bloom A, Yang Z, Li SJ (2008) Expectation modulates human brain responses to acute cocaine: a functional magnetic resonance imaging study. Biol Psychiatry 63(2):222–230
Lane RD, Reiman EM, Bradley MM, Lang PJ, Ahern GL, Davidson RJ, Schwartz GE (1997) Neuroanatomical correlates of pleasant and unpleasant emotion. Neuropsychologia 35(11):1437–1444
Lazar SW, Kerr CE, Wasserman RH, Gray JR, Greve DN, Treadway MT, McGarvey M, Quinn BT, Dusek JA, Benson H, Rauch SL, Moore CI, Fischl B (2005) Meditation experience is associated with increased cortical thickness. Neuroreport 16(17):1893–1897
Lehmann D, Faber PL, Achermann P, Jeanmonod D, Gianotti LR, Pizzagalli D (2001) Brain sources of EEG gamma frequency during volitionally meditation-induced, altered states of consciousness, and experience of the self. Psychiatry Res 108(2):111–121
Lévesque J, Eugène F, Joanette Y, Paquette V, Mensour B, Beaudoin G, Leroux JM, Bourgouin P, Beauregard M (2003) Neural circuitry underlying voluntary suppression of sadness. Biol Psychiatry 53(6):502–510
Lévesque J, Joanette Y, Mensour B, Beaudoin G, Leroux JM, Bourgouin P, Beauregard M (2004) Neural basis of emotional self-regulation in childhood. Neuroscience 129(2):361–369
Lieberman MD (2007) Social cognitive neuroscience: a review of core processes. Annu Rev Psychol 58:259–289
Lopes da Silva FH (1981) Analysis of EEG ongoing activity: rhythms and nonstationarities. In: Yamaguchi N, Fujisawa K (eds) Recent advances in EEG and EMG data processing. Elsevier, Amsterdam, pp 95–115
Luo Q, Perry C, Peng D, Jin Z, Xu D, Ding G, Xu S (2003) The neural substrate of analogical reasoning: an fMRI study. Brain Res Cogn Brain Res 17(3):527–534
Lutz A, Greischar LL, Rawlings NB, Ricard M, Davidson RJ (2004) Long-term meditators self-induce high-amplitude gamma synchrony during mental practice. Proc Natl Acad Sci USA 101(46):16369–16373
Lutz A, Slagter HA, Dunne JD, Davidson RJ (2008) Attention regulation and monitoring in meditation. Trends Cogn Sci 12(4):163–169
Maupin EW (1969) On meditation. In: Tart CT (ed) Altered states of consciousness, 1st edn. Wiley, New York
Newberg AB, Iversen J (2003) The neural basis of the complex mental task of meditation: neurotransmitter and neurochemical considerations. Med Hypotheses 61(2):282–291
Newberg A, Alavi A, Baime M, Pourdehnad M, Santanna J, d’Aquili E (2001) The measurement of regional cerebral blood flow during the complex cognitive task of meditation: a preliminary SPECT study. Psychiatry Res 106(2):113–122
Niedermeyer E, Lopes da Silva FH (eds) (1993) Electroencephalography: basic principles, clinical applications and related fields, 3rd edn. Williams and Wilkins, Baltimore, MD
Pan W, Zhang L, Xia Y (1994) The difference in EEG theta waves between concentrative and non-concentrative Qigong states—A power spectrum and topographic mapping study. J Tradit Chin Med 14(3):212–218
Pascual-Marqui RD, Michel CM, Lehmann D (1994) Low resolution electromagnetic tomography: a new method for localizing electrical activity in the brain. Int J Psychophysiol 18(1):49–65
Pascual-Marqui RD, Lehmann D, Koenig T, Kochi K, Merlo MC, Hell D, Koukkou M (1999) Low resolution brain electromagnetic tomography (LORETA) functional imaging in acute, neuroleptic-naive, first-episode, productive schizophrenia. Psychiatry Res 90(3):169–179
Pascual-Marqui RD, Esslen M, Kochi K, Lehmann D (2002) Functional imaging with low-resolution brain electromagnetic tomography (LORETA) a review. Methods Find Exp Clin Pharmacol 24(Suppl C):91–95
Raichle ME, MacLeod AM, Snyder AZ, Powers WJ, Gusnard DA, Shulman GL (2001) A default mode of brain function. Proc Natl Acad Sci USA 98(2):676–682
Slagter HA, Lutz A, Greischar LL, Francis AD, Nieuwenhuis S, Davis JM, Davidson RJ (2007) Mental training affects distribution of limited brain resources. PLoS Biol 5(6):e138
Takahashi T, Murata T, Hamada T, Omori M, Kosaka H, Kikuchi M, Yoshida H, Wada Y (2005) Changes in EEG and autonomic nervous activity during meditation and their association with personality traits. Int J Psychophysiol 55(2):199–207
Talairach J, Tournoux P (1988) Co-planar stereotaxic atlas of the human brain. Thieme, Stuttgart
Tebēcis AK (1975) A controlled study of the EEG during transcendental meditation: comparison with hypnosis. Folia Psychiatr Neurol Jpn 29(4):305–313
Wenk-Sormaz H (2005) Meditation can reduce habitual responding. Altern Ther Health Med 11(2):42–58
Acknowledgments
This work was supported in part by grant Nr. 44/06 from the Bial Foundation, S. Mamede do Coronado, Portugal. We thank Qigong Master Feng-San Lee, Taipei, Taiwan, for the possibility to contact the meditators of his group.
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Tei, S., Faber, P.L., Lehmann, D. et al. Meditators and Non-Meditators: EEG Source Imaging During Resting. Brain Topogr 22, 158–165 (2009). https://doi.org/10.1007/s10548-009-0107-4
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DOI: https://doi.org/10.1007/s10548-009-0107-4