Neuropsychology: Stimulating illusory own-body perceptions

@article{Blanke2002NeuropsychologySI,
  title={Neuropsychology: Stimulating illusory own-body perceptions},
  author={O. Blanke and S. Ortigue and T. Landis and M. Seeck},
  journal={Nature},
  year={2002},
  volume={419},
  pages={269-270}
}
'Out-of-body' experiences (OBEs) are curious, usually brief sensations in which a person's consciousness seems to become detached from the body and take up a remote viewing position. Here we describe the repeated induction of this experience by focal electrical stimulation of the brain's right angular gyrus in a patient who was undergoing evaluation for epilepsy treatment. Stimulation at this site also elicited illusory transformations of the patient's arm and legs (complex somatosensory… Expand
Out-of-Body Experiences and Other Complex Dissociation Experiences in a Patient with Unilateral Peripheral Vestibular Damage and Deficient Multisensory Integration.
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A case which corroborates and extends an earlier model of the role of vestibular signals in OBEs and advocate the involvement of subcortical bodily mechanisms in the occurrence of O BEs. Expand
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An experiment that uses conflicting visual-somatosensory input in virtual reality to disrupt the spatial unity between the self and the body found that during multisensory conflict, participants felt as if a virtual body seen in front of them was their own body and mislocalized themselves toward the virtual body. Expand
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The neurology of disorders of BSC after acquired brain damage or dysfunction is reviewed, ranging from body attentional disorders to delusional and illusory deficits about the patient's own body, associated with a breakdown of the link between the body and the self. Expand
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The case study demonstrated the possibility of eliciting more severe SP signs if the patient is interviewed from the left bedside and the first systematic transient remission of SP using left caloric vestibular stimulation (CVS), a physiologic manipulation mainly acting on the spatial frame of reference. Expand
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  • O. Blanke
  • Psychology, Medicine
  • Nature Reviews Neuroscience
  • 2012
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Findings from studies in which subjects receive ambiguous multisensory information about the location and appearance of their own body may form the basis for a neurobiological model of bodily self-consciousness. Expand
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TLDR
Positron-emission tomographic scanning showed brain activation at the temporoparietal junction at the angular-supramarginal gyrus junction and the superior temporal gyrus-sulcus on the right side, suggesting that activation of these regions is the neural correlate of the disembodiment that is part of the out-of-body experience. Expand
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TLDR
High correlations between power at alpha and high-gamma frequency-bands and the degree of perceived change in self-location are indicated and regions exhibiting such correlations include temporal-occipital regions, the rTPJ, as well as frontal and midline regions. Expand
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References

SHOWING 1-10 OF 36 REFERENCES
Two arms, three hands — a supernumerary phantom phenomenon after right middle cerebral artery stroke
Abstract The subjective experience of supernumerary phantom limb is a complex cognitive and perceptual distortion which is occasionally reported after right hemisphere lesions. Following a report byExpand
Unilateral Somatoparaphrenia After Right Hemisphere Stroke: A Case Description
TLDR
The types of explantation that seem required to understand how somatoparaphrenic beliefs can arise are outlined and an elaborate system of delusional beliefs was observed concerning the initially paralysed left leg, arm, and hand. Expand
Illusory Reduplication of One's Own Body: Phenomenology and Classification of Autoscopic Phenomena.
TLDR
The main features of autoscope hallucinations, heautoscopy proper, the feeling of a presence, the out-of-body experience, and negative and inner forms of autoscopic phenomena are outlined. Expand
Functional MRI of galvanic vestibular stimulation.
TLDR
Using a simple paradigm, it is shown that GVS can be implemented safely in the fMRI environment and Manipulating stimulus waveforms and thus the GVS-induced subjective vestibular sensations in future imaging studies may yield further insights into the cortical processing of Vestibular signals. Expand
Simple and complex vestibular responses induced by electrical cortical stimulation of the parietal cortex in humans
TLDR
A patient undergoing invasive monitoring for intractable epilepsy who experienced different vestibular sensations after electrical cortical stimulation of the inferior parietal lobule at the anterior part of the intraparietal sulcus is reported on. Expand
The Feeling of What Happens: Body and Emotion in the Making of Consciousness
'The Feeling of What Happens will change your experience of yourself' New York Times Where do our emotions come from? What does it mean to be conscious? At its core, human consciousness is awarenessExpand
Focal and global visual attention in left visuo-spatial neglect
Abstract Visuo-spatial neglect can be conceptualized as a failure of right hemisphere global attentional systems to direct the visual processor of the left hemisphere uniformly across an array. TwoExpand
Brain
Browne, Lockhart Clarke, Kesteven, Moxon, &c., the journal cannot fail to secure the support of the profession. With the exception of one or two articles, those which have already appeared are of anExpand
Visual Agnosias and Other Disturbances of Visual Perception and Cognition
This is part of a 16 volume thematic encyclopedia on vision covering all research aspects of this mutidisciplinary field by 300 contributors from around the world. Each volume is extensivelyExpand
Determination of current density distributions generated by electrical stimulation of the human cerebral cortex.
TLDR
A 3-dimensional finite element model of the human brain based on structural data from MRI scans, which simulated patterns of current flow in the cerebral hemisphere with different types of electrical stimulation, found to be very effective in producing localized current flows. Expand
...
1
2
3
4
...