Hypnotic catalepsy-induced changes of regional cerebral glucose metabolism

Grond, Martin

doi:10.1016/0925-4927(95)02571-e

Cited by 26 publications

(9 citation statements)

References 17 publications

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“…This was also shown in an earlier regional blood flow study (Crawford, Gur, Skolnick, Gur, & Benson, 1993). This pattern of activation was not found in neuroimaging studies using other dependent and independent variables of hypnosis (Faymonville et al, 2000;Ground, Pawlik, Walter, Lesch, & Heiss, 1995).…”

Section: Hypnosissupporting

confidence: 69%

Functional neuroanatomy of altered states of consciousness: The transient hypofrontality hypothesis

Dietrich

2003

Consciousness and Cognition

391

286

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It is the central hypothesis of this paper that the mental states commonly referred to as altered states of consciousness are principally due to transient prefrontal cortex deregulation. Supportive evidence from psychological and neuroscientific studies of dreaming, endurance running, meditation, daydreaming, hypnosis, and various druginduced states is presented and integrated. It is proposed that transient hypofrontality is the unifying feature of all altered states and that the phenomenological uniqueness of each state is the result of the differential viability of various frontal circuits. Using an evolutionary approach, consciousness is conceptualized as hierarchically ordered cognitive function. Higher-order structures perform increasingly integrative functions and thus contribute more sophisticated content. Although this implies a holistic approach to consciousness, such a functional hierarchy localizes the most sophisticated layers of consciousness in the zenithal higher-order structure: the prefrontal cortex. The hallmark of altered states of consciousness is the subtle modification of behavioral and cognitive functions that are typically ascribed to the prefrontal cortex. The theoretical framework presented yields a number of testable hypotheses.

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Section: Hypnosissupporting

confidence: 69%

Functional neuroanatomy of altered states of consciousness: The transient hypofrontality hypothesis

Dietrich

2003

Consciousness and Cognition

391

286

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“…Each of these cerebral functions is likely to correspond to a different brain activation pattern in the HS. This suggestion is in good agreement with the results of Grond et al, 27 showing that hypnotically induced catalepsy was related to increased glucose metabolism in the sensorimotor cortex.…”

Section: Main Effects Of the Hssupporting

confidence: 82%

Neural mechanisms of antinociceptive effects of hypnosis

Faymonville¹,

Laureys

Franck

et al. 2000

European Journal of Anaesthesiology

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Background:The neural mechanisms underlying the modulation of pain perception by hypnosis remain obscure. In this study, we used positron emission tomography in 11 healthy volunteers to identify the brain areas in which hypnosis modulates cerebral responses to a noxious stimulus.Methods: The protocol used a factorial design with two factors: state (hypnotic state, resting state, mental imagery) and stimulation (warm non-noxious vs. hot noxious stimuli applied to right thenar eminence). Two cerebral blood flow scans were obtained with the

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“…Both sensory and motor (i.e., somatoform) dissociative symptoms were elicited by this technique, like the cataleptic body part feeling numb, unreal, or not belonging to the hypnotee, and involuntary tonic immobility (Hagenaars, Roelofs, Hoogduin, & Van Minnen, 2006). Neuroimaging studies also provide evidence for changes in sensory information processing during catalepsy (Grond, Pawlik, Walter, Lesch, & Heiss, 1995). In a total body cataleptic state, the occipital areas (visual and paravisual cortex) became deactivated, while metabolic recruitment was found in the sensori-motor brain structures, corresponding to a shift of attention away from normal sensory input.…”

Section: Somatoform Dissociation and Traumamentioning

confidence: 99%