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Gamma coherence and conscious perception
Abstract
BACKGROUND: High-frequency (e.g., gamma 30 to 50 Hz) coherent neural activity has been postulated to underlie binding of independent neural assemblies and thus integrate processing across distributed neuronal networks to achieve a unified conscious experience. Prior studies suggest that gamma activity may play a role in perceptual mechanisms, but design limitations raise concerns. Thus, controversy exists as to the hypothesis that gamma activity is necessary for perceptual awareness. In addition, controversy exists as to whether the primary sensory cortices are involved directly in the mechanisms of conscious perception or just in processes prior to conscious awareness. OBJECTIVE: To investigate the relation of gamma coherence and perception. METHODS: Digital intracranial electrocorticographic recordings from implanted electrodes were obtained in six patients with intractable epilepsy during a simple somatosensory detection task for near-threshold stimuli applied to the contralateral hand. Signal analyses were then conducted using a quantitative approach that employed two-way Hanning digital bandpass filters to compute running correlations across pairs of channels at various time epochs for each patient and each perception state across multiple bandwidths. RESULTS: Gamma coherence occurs in the primary somatosensory cortex approximately 150 to 300 milliseconds after contralateral hand stimuli that are perceived, but not for nonperceived stimuli, which did not differ in character/intensity or early somatosensory evoked potentials. CONCLUSION: The results are consistent with the possible direct involvement of primary sensory cortex in elemental awareness and with a role for gamma coherence in conscious perception.
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“Indeed,  and gamma frequency band phase synchrony is enhanced for consciously perceived stimuli (Meador et al., 2002;Gross et al., 2004;Nakatani et al., 2005;Palva et al., 2005) and correlates with conscious perception in binocular rivalry (Fries et al., 1997(Fries et al., , 2002;;Srinivasan et al., 1999;Doesburg et al., 2005).”
From Synchronization of neural activity across cortical areas correlates with conscious perception (2007) · cites this paper as Meador et al., 2002
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Modulation of Oscillatory Neuronal Synchronization by Selective Visual Attention
Fries, P., Reynolds, J. H., Rorie, A. E., & Desimone, R. (2001) · Science · doi:10.1126/science.1055465 · Cited by 2,786
Perception's shadow: long-distance synchronization of human brain activity
Rodriguez, E., George, N., Lachaux, J.-P., Martinerie, J., Renault, B., & Varela, F. J. (1999) · Nature · doi:10.1038/17120 · Cited by 1,915
Synchronization of cortical activity and its putative role in information processing and learning
Singer, W. (1993) · Annual Review of Physiology · doi:10.1146/annurev.ph.55.030193.002025 · Cited by 1,685
(1990) · CaltechAUTHORS (California Institute of Technology) · Cited by 1,661
The Correlation Theory of Brain Function
von der Malsburg, C. (1994) · Physics of neural networks · doi:10.1007/978-1-4612-4320-5_2 · Cited by 1,089
Crone, N. (1998) · Brain · doi:10.1093/brain/121.12.2301 · Cited by 1,044
Are we aware of neural activity in primary visual cortex?
Crick, F., & Koch, C. (1995) · Nature · doi:10.1038/375121a0 · Cited by 932
Temporal coding in the visual cortex: new vistas on integration in the nervous system
Engel, A. K., Peter König, B., Kreiter, A. K., Schillen, T. B., & Singer, W. (1992) · Trends in Neurosciences · doi:10.1016/0166-2236(92)90039-b · Cited by 754
Attention modulates synchronized neuronal firing in primate somatosensory cortex
Steinmetz, P. N., Roy, A., Fitzgerald, P. J., Hsiao, S. S., Johnson, K. O., & Niebur, E. (2000) · Nature · doi:10.1038/35004588 · Cited by 725
The Effect of Face Inversion on Activity in Human Neural Systems for Face and Object Perception
Haxby, J. V., Ungerleider, L. G., Clark, V. P., Schouten, J. L., Hoffman, E. A., & Martin, A. D. (1999) · Neuron · doi:10.1016/s0896-6273(00)80690-x · Cited by 657
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“There are some research laboratories and industrial companies have recently developing computing technology and the focus on exclusively meditating yoga practices [16].”
BackgroundKukleta, M., Bob, P., Brázdil, M., Román, R., & Rektor, I. (2010) · Consciousness and Cognition · doi:10.1016/j.concog.2010.04.007 · Cited by 10
Passive frame theory: A new synthesis
Morsella, E., Godwin, C. A., Jantz, T. K., Krieger, S. C., & Gazzaley, A. H. (2016) · Behavioral and Brain Sciences · doi:10.1017/s0140525x15002812 · Cited by 10
Anand, S., Cho, H., Adamek, M., Burton, H., Moran, D. W., Leuthardt, E. C., & Brunner, P. (2023) · Journal of Neurophysiology · doi:10.1152/jn.00172.2023 · Cited by 11
Marcar, V. L., Loenneker, T., Straessle, A., Schwarz, U., & Martin, E. (2004) · Pediatric Research · doi:10.1203/01.pdr.0000130479.43442.5c · Cited by 9
Huang, Y., Jiao, J., Hu, J., Hsing, C., Lai, Z., Yang, Y., & Hu, X. (2020) · Journal of Neural Engineering · doi:10.1088/1741-2552/aba160 · Cited by 8
Temporal dynamics of masked word reading
Fairhall, S. L., Hamm, J. P., & Kirk, I. J. (2006) · Consciousness and Cognition · doi:10.1016/j.concog.2006.01.002 · Cited by 8
Rouleau, N., Lehman, B. S., & Persinger, M. A. (2016) · Brain Research · doi:10.1016/j.brainres.2016.05.034 · Cited by 7
“…significant “memory” component, that is, the reiterative processing of density (mV2 Hz 1) and voltage (mV). representations of experience within the recursive rostral-caudal electroencephalographic waves coupled to consciousness (Crick and Koch, 1990; Llinas and Ribary, 1993; Meador et al., 2002).”
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Knyazev, G. G., Ushakov, V., Orlov, V. A., Malakhov, D. G., Kartashov, S., Savostyanov, A. N., Bocharov, A. V., & Velichkovsky, B. M. (2021) · Symmetry · doi:10.3390/sym13020330 · Cited by 7
Metastability and Transients in Brain Dynamics: Problems and Rigorous Results
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Cortical sources of visual evoked potentials during consciousness of executive processes
Babiloni, C., Vecchio, F., Iacoboni, M., Buffo, P., Eusebi, F., & Rossini, P. M. (2008) · Human Brain Mapping · doi:10.1002/hbm.20567 · Cited by 6
“…in primary somatosensory cortex [Ray et al., 1999], and that threshold somatosensory stimulations elicited high-frequency EEG oscillations with similar features for consciously and unconsciously perceived stimuli, in primary somatosensory cortex along 150-ms post-stimulus [Meador et al., 2002].”
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Meador, K. J., Revill, K. P., Epstein, C. M., Sathian, K., Loring, D. W., & Rorden, C. (2016) · Neuropsychologia · doi:10.1016/j.neuropsychologia.2016.11.017 · Cited by 7
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Carozzo, S., Garbarino, S., Serra, S., & Sannita, W. G. (2010) · Journal of Psychophysiology · doi:10.1027/0269-8803/a000019 · Cited by 7
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“These far-reaching synchronization processes are always neuronal mass phenomena with large amplitudes (otherwise the signal could not be filtered out from the background noise), that only vary by the oscillation frequency (Meador et al., 2002; Northoff, 2017).”
BackgroundHan, L., Purger, D. A., Eagleman, S. L., Halpern, C. H., Buch, V., Gaston, S., Razavi, B., Meador, K. J., & Drover, D. R. (2024) · BJA Open · doi:10.1016/j.bjao.2024.100347 · Cited by 7
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Wittenberg, M. A., Baumgarten, T. J., Schnitzler, A., & Lange, J. (2017) · Journal of Cognitive Neuroscience · doi:10.1162/jocn_a_01219 · Cited by 6
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Setha, A. K., Edelmanb, G. M., & Outline, A. (2011) · Springer eBooks · doi:10.1007/springerreference_60266 · Cited by 5
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Wu, M., Auksztulewicz, R., & Riecke, L. (2023) · NeuroImage · doi:10.1016/j.neuroimage.2023.120476 · Cited by 4
Rouleau, N., & Persinger, M. A. (2014) · Journal of Signal and Information Processing · doi:10.4236/jsip.2014.54017 · Cited by 4
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Wu, X., Li, W., Shen, S., Zheng, X., Zhang, Y., & Hou, W. (2013) · IEEE Transactions on Neural Systems and Rehabilitation Engineering · doi:10.1109/tnsre.2013.2245422 · Cited by 4
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Fujioka, T., Chen, J. J., Black, S. E., Chen, J. J., Honjo, K., DAWSON, D. R., & Roß, B. (2025) · Annals of the New York Academy of Sciences · doi:10.1111/nyas.70041 · Cited by 3
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(2014) · DSpace@MIT (Massachusetts Institute of Technology) · Cited by 3
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Liu, J., Björkman, A., Antfolk, C., & Malešević, N. (2025) · IEEE Transactions on Haptics · doi:10.1109/toh.2025.3526542 · Cited by 2
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Bob, P. (2011) · Springer eBooks · doi:10.1007/978-1-4614-0436-1_1 · Cited by 2
Sathian, K. (2002) · Neurology · doi:10.1212/wnl.59.6.800 · Cited by 2
Massé, I. O., Blanchet-Godbout, S., Bronchti, G., & Boire, D. (2019) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/514414 · Cited by 2
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Ploner, M., Platzen, J., Pollok, B., Groß, J., & Schnitzler, A. (2007) · European Journal of Neuroscience · doi:10.1111/j.1460-9568.2007.05611.x · Cited by 1
“Some studies showed an association between perception and behaviour and evoked response amplitudes from somatosensory cortices (Palva et al., 2005), whereas other investigations did not find such an association (Libet et al., 1967; Ray et al., 1999; Meador et al., 2002; Schubert et al., 2006).”
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Ma, L. (2011) · University Libraries (University of Maryland) · Cited by 1
On the operation of visual cortical gamma in the light of frequency variation
Lowet, E. (2016) · Research Publications (Maastricht University) · doi:10.26481/dis.20160323el · Cited by 1
Palva, S. (2007) · Työväentutkimus Vuosikirja
Zschocke, S., & Hansen, H.-C. (2011) · Springer eBooks · doi:10.1007/978-3-642-19943-1_4
Jones, S., & Pritchett, D. L. (2007)
Kaiser, J., & Lutzenberger, W. (2008) · Cambridge University Press eBooks · doi:10.1017/cbo9780511541650.015
Tjøstheim, T. A., Johansson, B., & Balkenius, C. (2021) · Frontiers in Systems Neuroscience · doi:10.3389/fnsys.2021.752219
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Tozzi, A. (2021) · Biosystems · doi:10.1016/j.biosystems.2021.104584
Gallotto, S. (2021) · Research Publications (Maastricht University) · doi:10.26481/dis.20210326sg
Huang, Y., Jiao, J., Hu, J., Hsing, C., Lai, Z., Yang, Y., Li, Z., & Hu, X. (2022) · Frontiers in Aging Neuroscience · doi:10.3389/fnagi.2022.866272
Coherence in Intelligent Systems
Zheng, H., & Shi, L. (2023) · Lecture notes in computer science · doi:10.1007/978-3-031-33469-6_36
بررسی فعالیت الکتریکی مغز حین ارتباط فرادرمانی در جمعیت فرادرمانگر
طاهری, م. ع., عاصم, ف. م., & سمسارها, ف. (2022) · ژورنال علمی کازمواینتل · doi:10.61450/joci.fa.v1i2.86
Taheri, M. A., Modarresi-Asem, F., & Semsarha, F. (2022) · The Scientific Journal of Cosmointel · doi:10.61450/joci.v1i2.19 · Cited by 2
Zschocke, S., & Hansen, H.-C. (2023) · Springer eBooks · doi:10.1007/978-3-662-63267-3_4
Fukasawa, S., Nagashima, R., Ono, Y., Noguchi, N., Lee, B., & Odagaki, M. (2025) · IEEJ Transactions on Electronics Information and Systems · doi:10.1541/ieejeiss.145.533
Roshan, J. H. N., Moghimi, A., Gorji, A., Shojaei, A., & Vyazovskiy, V. V. (2025) · Journal of Sleep Research · doi:10.1111/jsr.70129
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“Indeed, neural correlates of consciousness are typically within the range of 40 Hz 92 oscillations while rhythms tied to memoryconsolidationandretrievaloperatearound7 Hz 93 .”
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Metadata
- Authors
- Meador, K. J., Ray, P. G., Echauz, J. R., Loring, D. W., & Vachtsevanos, G. J.
- Affiliations
- Georgia Institute of Technology (US)
- Venue
- Neurology
- Published
- 2002-09-24
- Volume
- 59
- Issue
- 6
- Pages
- 847-854
- ISSN
- 0028-3878 (ISSN-L)
- 1526-632X
- OpenAlex
- W2001796590
- Cited by
- 161
- References
- 53
- Citations by year
- 2026: 2 · 2025: 8 · 2024: 5 · 2023: 7 · 2022: 4 · 2021: 7 · 2020: 2 · 2019: 4 · 2018: 3 · 2017: 7 · 2016: 6 · 2015: 7 · 2014: 10 · 2013: 7 · 2012: 7
- FWCI
- 2.69
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Neurology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Social Sciences › Arts and Humanities › Philosophy › Philosophy and Theoretical Science
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Keywords
- gamma coherence, conscious perception, primary somatosensory cortex, perceptual awareness, neural binding, intracranial electrocorticography, epilepsy
- MeSH terms
- Adult, Consciousness, Electric Stimulation, Electrodes, Implanted, Electroencephalography, Epilepsy, Evoked Potentials, Somatosensory, Female, Humans, Male, Perception
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