Brain electric microstates and momentary conscious mind states as building blocks of spontaneous thinking: I. Visual imagery and abstract thoughts

Lehmann, Dietrich; Strik, Werner; Henggeler, B.; Koenig, Thomas; Koukkou, M.

doi:10.1016/s0167-8760(97)00098-6

Cited by 360 publications

(261 citation statements)

References 41 publications

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“…Unexpectedly, we failed to show any correlations between the parameters of Classes A and B and visual/auditory subjectively reported experiences, although based on prior observations (Lehmann et al 1998;Britz et al 2010;Milz et al 2016), some relationships could have emerged.…”

Section: Resultscontrasting

confidence: 72%

“…Earlier studies point to the correspondence of individual microstates to particular classes of mentation by influencing how incoming information is processed and reacted to, and reported afterwards to some degree: Class A has been associated with abstract thoughts (Lehmann et al 1998;Lehmann et al 2010), activity within auditory areas (Britz et al 2010) and visualization (Milz et al 2016); Class B was associated with visual imagery-type activities (Britz et al 2010), verbalization (Milz et al 2016) and paranormal belief (Schlegel et al 2012). MRI-EEG coupled studies suggested that Class C stems from a network related to saliency, whereas Class D -from a dorsal attention network (Britz et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…With the assumption that different maps are generated by the coordinated activity of different neural assemblies (Lehmann et al 1987), microstates are considered "atoms of thought", representing a sequence of different states of the conscious mind and giving rise to spontaneous mental activity (Lehmann et al 1998).…”

Section: Introductionmentioning

confidence: 99%

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Association Between Resting-State Microstates and Ratings on the Amsterdam Resting-State Questionnaire

et al. 2016

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There is a gap in understanding on how physiologically observed activity is related to the subjective, internally oriented experience during resting state. Microstate analysis is a frequent approach to evaluate resting-state EEG. But the relationship of commonly observed resting-state microstates to psychological domains of resting is not clear. The Amsterdam Resting-State Questionnaire (ARSQ) was recently introduced, offering an effective way to quantify subjective states after a period of resting and associate these quantifiers to psychological and physiological variables. In a sample of 94 healthy volunteers who participated in closed-eyes 5 min. resting session with concurrent EEG recording and subsequent filling of the ARSQ we evaluated parameters of microstate Classes A, B, C, D. We showed a moderate negative association between contribution (r = -0.40) of Class C and experienced Somatic Awareness (SA). The negative correlation between Class C and SA seems reasonable as Class C becomes more dominant when connections to contextual information (and bodily sensations as assessed with SA) are loosened (in reduced attention states, during sleep, hypnosis, or psychosis). We suggest that the use of questionnaires such as the ARSQ is helpful in exploring the variation of resting-state EEG parameters and its relationship to variation in non-sensory experiences.

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Section: Resultscontrasting

confidence: 72%

Section: Introductionmentioning

confidence: 99%

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Association Between Resting-State Microstates and Ratings on the Amsterdam Resting-State Questionnaire

et al. 2016

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“…Evidence in support of this notion was provided by Lehmann and colleagues (Lehmann et al, 1998), who investigated spontaneous, conscious experience in healthy participants under task-free conditions. Participants were placed in a dark room and M A N U S C R I P T…”

Section: The Functional Significance Of Eeg Microstatesmentioning

confidence: 85%

EEG microstates as a tool for studying the temporal dynamics of whole-brain neuronal networks: A review

2018

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SummaryThe present review discusses a well-established method for characterizing resting-state activity of the human brain using multichannel electroencephalography (EEG). This method involves the examination of electrical microstates in the brain, which are defined as successive short time periods during which the configuration of the scalp potential field remains semi-stable, suggesting quasi-simultaneity of activity among the nodes of largescale networks. A few prototypic microstates, which occur in a repetitive sequence across time, can be reliably identified across participants. Researchers have proposed that these microstates represent the basic building blocks of the chain of spontaneous conscious mental processes, and that their occurrence and temporal dynamics determine the quality of mentation. Several studies have further demonstrated that disturbances of mental processes associated with neurological and psychiatric conditions manifest as changes in the temporal dynamics of specific microstates. Combined EEG-fMRI studies and EEG source imaging studies have indicated that EEG microstates are closely associated with resting-state networks as identified using fMRI. The scale-free properties of the time series of EEG microstates explain why similar networks can be observed at such different time scales.The present review will provide an overview of these EEG microstates, available methods for analysis, the functional interpretations of findings regarding these microstates, and their behavioral and clinical correlates.

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“…Furthermore, their studies have shown that these microstates are associated with different modes of spontaneous thoughts [270] or with spontaneous visual imagery, or abstract thinking [271].…”

Section: O1mentioning

confidence: 99%

Natural world physical, brain operational, and mind phenomenal space–time

Fingelkurts

Neves

2010

Physics of Life Reviews

168

233

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Concepts of space and time are widely developed in physics. However, there is a considerable lack of biologically plausible theoretical frameworks that can demonstrate how space and time dimensions are implemented in the activity of the most complex life-system -the brain with a mind. Brain activity is organized both temporally and spatially, thus representing space-time in the brain. Critical analysis of recent research on the space-time organization of the brain's activity pointed to the existence of so-called operational space-time in the brain. This space-time is limited to the execution of brain operations of differing complexity. During each such brain operation a particular short-term spatio-temporal pattern of integrated activity of different brain areas emerges within related operational space-time. At the same time, to have a fully functional human brain one needs to have a subjective mental experience. Current research on the subjective mental experience offers detailed analysis of space-time organization of the mind. According to this research, subjective mental experience (subjective virtual world) has definitive spatial and temporal properties similar to many physical phenomena. Based on systematic review of the propositions and tenets of brain and mind space-time descriptions, our aim in this review essay is to explore the relations between the two. To be precise, we would like to discuss the hypothesis that via the brain operational space-time the mind subjective space-time is connected to otherwise distant physical space-time reality.Key words: spatial, temporal, consciousness, cognition, operation, architectonics, EEG, field, metastability, physics, coordinative dynamics, self-organization, cortex.

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Brain electric microstates and momentary conscious mind states as building blocks of spontaneous thinking: I. Visual imagery and abstract thoughts

Cited by 360 publications

References 41 publications

Association Between Resting-State Microstates and Ratings on the Amsterdam Resting-State Questionnaire

Association Between Resting-State Microstates and Ratings on the Amsterdam Resting-State Questionnaire

EEG microstates as a tool for studying the temporal dynamics of whole-brain neuronal networks: A review

Natural world physical, brain operational, and mind phenomenal space–time

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