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Delorme A, Grandchamp R, Curot J, Barragan-Jason G, Denuelle M, Sol JC, Valton L. Effect of meditation on intracerebral EEG in a patient with temporal lobe epilepsy: A case report. Explore (NY) 2020; 17:197-202. [PMID: 33262082 DOI: 10.1016/j.explore.2020.11.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/12/2020] [Accepted: 11/21/2020] [Indexed: 12/21/2022]
Abstract
Meditation has been deemed a miracle cure for a wide range of neurological disorders. However, it is unclear whether meditation practice would be beneficial for patients suffering from epilepsy. Here we report on the comparison of the effects of focused-attention meditation and a control task on electroencephalographic (EEG) activity in a patient undergoing stereoencephalographic (SEEG) investigation for drug-resistant epilepsy. The patient routinely practiced focused-attention meditation and reported that she found it beneficial. During the SEEG investigation, intracerebral EEG data were recorded during meditation as well as during mind-wandering task. The EEG data were analyzed for type of electrical activity (labeled) by two expert epileptologists. We found that the proportion of EEG segments containing activity classified as interictal epileptiform discharges (IEDs; abnormal electrical activity that occurs between seizures) increased significantly during meditation practice. Although the finding was surprising, this increase in IEDs may not correlate with an increase in seizure frequency, and the patient might still benefit from practicing meditation. The finding does, however, warrant further studies on the influence of meditation on epileptic activity.
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Affiliation(s)
- A Delorme
- CERCO - Centre de Recherche Cerveau et Cognition UMR 5549 - CNRS - UPS - Pavillon Baudot, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Place du Dr Baylac, 31059 Toulouse, France; Swartz Center for Computational Neuroscience, Institute for Neural Computation, University of California San Diego, La Jolla CA, United States; Institute of Noetic Science, Petaluma, CA, USA.
| | - R Grandchamp
- CERCO - Centre de Recherche Cerveau et Cognition UMR 5549 - CNRS - UPS - Pavillon Baudot, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Place du Dr Baylac, 31059 Toulouse, France
| | - J Curot
- CERCO - Centre de Recherche Cerveau et Cognition UMR 5549 - CNRS - UPS - Pavillon Baudot, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Place du Dr Baylac, 31059 Toulouse, France.
| | - G Barragan-Jason
- CERCO - Centre de Recherche Cerveau et Cognition UMR 5549 - CNRS - UPS - Pavillon Baudot, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Place du Dr Baylac, 31059 Toulouse, France
| | - M Denuelle
- Service des Explorations Neurophysiologiques, Centre Hospitalier Universitaire de Toulouse, Hôpital Pierre paul Riquet - Purpan, TSA 40031, 31059 Toulouse cedex 9, France.
| | - J C Sol
- Service des Explorations Neurophysiologiques, Centre Hospitalier Universitaire de Toulouse, Hôpital Pierre paul Riquet - Purpan, TSA 40031, 31059 Toulouse cedex 9, France; TONIC - Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, Pavillon Baudot, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Place du Dr Baylac, 31059 Toulouse, France.
| | - L Valton
- CERCO - Centre de Recherche Cerveau et Cognition UMR 5549 - CNRS - UPS - Pavillon Baudot, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Place du Dr Baylac, 31059 Toulouse, France; Service des Explorations Neurophysiologiques, Centre Hospitalier Universitaire de Toulouse, Hôpital Pierre paul Riquet - Purpan, TSA 40031, 31059 Toulouse cedex 9, France.
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Cauchoix M, Chow PKY, van Horik JO, Atance CM, Barbeau EJ, Barragan-Jason G, Bize P, Boussard A, Buechel SD, Cabirol A, Cauchard L, Claidière N, Dalesman S, Devaud JM, Didic M, Doligez B, Fagot J, Fichtel C, Henke-von der Malsburg J, Hermer E, Huber L, Huebner F, Kappeler PM, Klein S, Langbein J, Langley EJG, Lea SEG, Lihoreau M, Lovlie H, Matzel LD, Nakagawa S, Nawroth C, Oesterwind S, Sauce B, Smith EA, Sorato E, Tebbich S, Wallis LJ, Whiteside MA, Wilkinson A, Chaine AS, Morand-Ferron J. The repeatability of cognitive performance: a meta-analysis. Philos Trans R Soc Lond B Biol Sci 2018; 373:20170281. [PMID: 30104426 PMCID: PMC6107569 DOI: 10.1098/rstb.2017.0281] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2018] [Indexed: 12/20/2022] Open
Abstract
Behavioural and cognitive processes play important roles in mediating an individual's interactions with its environment. Yet, while there is a vast literature on repeatable individual differences in behaviour, relatively little is known about the repeatability of cognitive performance. To further our understanding of the evolution of cognition, we gathered 44 studies on individual performance of 25 species across six animal classes and used meta-analysis to assess whether cognitive performance is repeatable. We compared repeatability (R) in performance (1) on the same task presented at different times (temporal repeatability), and (2) on different tasks that measured the same putative cognitive ability (contextual repeatability). We also addressed whether R estimates were influenced by seven extrinsic factors (moderators): type of cognitive performance measurement, type of cognitive task, delay between tests, origin of the subjects, experimental context, taxonomic class and publication status. We found support for both temporal and contextual repeatability of cognitive performance, with mean R estimates ranging between 0.15 and 0.28. Repeatability estimates were mostly influenced by the type of cognitive performance measures and publication status. Our findings highlight the widespread occurrence of consistent inter-individual variation in cognition across a range of taxa which, like behaviour, may be associated with fitness outcomes.This article is part of the theme issue 'Causes and consequences of individual differences in cognitive abilities'.
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Affiliation(s)
- M Cauchoix
- Station d'Ecologie Théorique et Expérimentale du CNRS UMR5321, Evolutionary Ecology Group, 2 route du CNRS, 09200 Moulis, France
- Institute for Advanced Study in Toulouse, 21 allée de Brienne, 31015 Toulouse, France
| | - P K Y Chow
- Centre for Research in Animal Behaviour, Psychology, University of Exeter, Exeter, UK
- Graduate School of Environmental Science, Division of Biospohere Science, Hokkaido University, Sapporo, Hokkaido, Japan
| | - J O van Horik
- Centre for Research in Animal Behaviour, Psychology, University of Exeter, Exeter, UK
| | - C M Atance
- School of Psychology, University of Ottawa, Ottawa, Canada
| | - E J Barbeau
- Centre de recherche Cerveau et Cognition, UPS-CNRS, UMR5549, Toulouse, France
| | - G Barragan-Jason
- Institute for Advanced Study in Toulouse, 21 allée de Brienne, 31015 Toulouse, France
| | - P Bize
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, UK
| | - A Boussard
- Department of Zoology/Ethology, Stockholm University, Svante Arrheniusväg 18B, 10691 Stockholm, Sweden
| | - S D Buechel
- Department of Zoology/Ethology, Stockholm University, Svante Arrheniusväg 18B, 10691 Stockholm, Sweden
| | - A Cabirol
- Research Center on Animal Cognition (CRCA), Center for Integrative Biology (CBI), CNRS, University Paul Sabatier, Toulouse, France
| | - L Cauchard
- Département de Sciences Biologiques, Université de Montréal, Montreal, Quebec, Canada
| | - N Claidière
- LPC, Aix Marseille University, CNRS, Marseille, France
| | - S Dalesman
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, UK
| | - J M Devaud
- Research Center on Animal Cognition (CRCA), Center for Integrative Biology (CBI), CNRS, University Paul Sabatier, Toulouse, France
| | - M Didic
- AP-HM Timone & Institut de Neurosciences des Systèmes, Marseille, France
| | - B Doligez
- Department of Biometry and Evolutionary Biology, CNRS UMR 5558, Université Lyon 1, Université de Lyon, Villeurbanne, France
| | - J Fagot
- LPC, Aix Marseille University, CNRS, Marseille, France
| | - C Fichtel
- Behavioural Ecology and Sociobiology Unit, German Primate Centre, Leibniz Institute for Primatology, Kellnerweg 4, 37077 Göttingen, Germany
- Department of Sociobiology/Anthropology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Göttingen, Kellnerweg 6, 37077 Göttingen, Germany
- Leibniz Science Campus 'Primate Cognition', Göttingen, Germany
| | - J Henke-von der Malsburg
- Behavioural Ecology and Sociobiology Unit, German Primate Centre, Leibniz Institute for Primatology, Kellnerweg 4, 37077 Göttingen, Germany
- Department of Sociobiology/Anthropology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Göttingen, Kellnerweg 6, 37077 Göttingen, Germany
- Leibniz Science Campus 'Primate Cognition', Göttingen, Germany
| | - E Hermer
- Department of Sociobiology/Anthropology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Göttingen, Kellnerweg 6, 37077 Göttingen, Germany
| | - L Huber
- Leibniz Science Campus 'Primate Cognition', Göttingen, Germany
| | - F Huebner
- Behavioural Ecology and Sociobiology Unit, German Primate Centre, Leibniz Institute for Primatology, Kellnerweg 4, 37077 Göttingen, Germany
- Department of Sociobiology/Anthropology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Göttingen, Kellnerweg 6, 37077 Göttingen, Germany
- Leibniz Science Campus 'Primate Cognition', Göttingen, Germany
| | - P M Kappeler
- Behavioural Ecology and Sociobiology Unit, German Primate Centre, Leibniz Institute for Primatology, Kellnerweg 4, 37077 Göttingen, Germany
- Department of Sociobiology/Anthropology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Göttingen, Kellnerweg 6, 37077 Göttingen, Germany
- Leibniz Science Campus 'Primate Cognition', Göttingen, Germany
| | - S Klein
- Research Center on Animal Cognition (CRCA), Center for Integrative Biology (CBI), CNRS, University Paul Sabatier, Toulouse, France
| | - J Langbein
- Institute of Behavioural Physiology, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - E J G Langley
- Centre for Research in Animal Behaviour, Psychology, University of Exeter, Exeter, UK
| | - S E G Lea
- Centre for Research in Animal Behaviour, Psychology, University of Exeter, Exeter, UK
| | - M Lihoreau
- Research Center on Animal Cognition (CRCA), Center for Integrative Biology (CBI), CNRS, University Paul Sabatier, Toulouse, France
| | - H Lovlie
- IFM Biology, Linköping University, 58183 Linköping, Sweden
| | - L D Matzel
- Department of Psychology, Rutgers University, Piscataway, NJ, USA
| | - S Nakagawa
- Evolution & Ecology Research Centre and School of Biological, Earth & Environmental Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - C Nawroth
- Institute of Behavioural Physiology, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - S Oesterwind
- Faculty of Agricultural and Environmental Sciences, University of Rostock, Rostock, Germany
| | - B Sauce
- Department of Psychology, Rutgers University, Piscataway, NJ, USA
| | - E A Smith
- School of Life Sciences, University of Lincoln, Lincoln, UK
| | - E Sorato
- IFM Biology, Linköping University, 58183 Linköping, Sweden
| | - S Tebbich
- Department of Behavioural Biology, University of Vienna, Vienna, Austria
| | - L J Wallis
- Clever Dog Lab, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria
- Department of Ethology, Eötvös Loránd University, Budapest, Hungary
| | - M A Whiteside
- Centre for Research in Animal Behaviour, Psychology, University of Exeter, Exeter, UK
| | - A Wilkinson
- School of Life Sciences, University of Lincoln, Lincoln, UK
| | - A S Chaine
- Station d'Ecologie Théorique et Expérimentale du CNRS UMR5321, Evolutionary Ecology Group, 2 route du CNRS, 09200 Moulis, France
- Institute for Advanced Study in Toulouse, 21 allée de Brienne, 31015 Toulouse, France
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