Über einen obduzierten fall von optischer körperschemastörung und héautoskopie

Gloning, I; Gloning, K; Jellinger, K. A.; Tschabitscher, H

doi:10.1016/0028-3932(63)90017-4

Cited by 9 publications

(9 citation statements)

References 9 publications

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“…These observations of abnormal self-identification with one's own head and/or trunk are reminiscent of earlier clinical observations in patients with somatoparaphrenia, in whom not only a limb, but also the contralesional hemi-body was affected (Gerstmann, 1942;Glonning, Jellinger, & Tschabiter, 1963;Hoff & Pötzl, 1935/1988Lhermitte, 1939;MenningerLerchenthal, 1935;Pötzl, 1925, for reviews see Blanke et al, 2008;Brugger, 2006). Thus, Pötzl (1925; case 1) described a patient with left-sided hemiplegia who not only claimed that his left arm belonged to an unknown person, as seen in many patients with somatoparaphrenia, but also that there was another (unseen) person lying in his bed to his left and that this person tried to push him out of the bed.…”

Section: Illusory Own Body Perceptions: Head and Trunk Versus Upper Esupporting

confidence: 63%

Illusory own body perceptions: Case reports and relevance for bodily self-consciousness

Heydrich

Diéguez

Grünwald

et al. 2010

Consciousness and Cognition

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a b s t r a c tNeurological disorders of body representation have for a long time suggested the importance of multisensory processing of bodily signals for self-consciousness. One such group of disorders -illusory own body perceptions affecting the entire body -has been proposed to be especially relevant in this respect, based on neurological data as well as philosophical considerations. This has recently been tested experimentally in healthy subjects showing that integration of multisensory bodily signals from the entire body with respect to the three aspects: self-location, first-person perspective, and self-location, is crucial for bodily self-consciousness. Here we present clinical and neuroanatomical data of two neurological patients with paroxysmal disorders of full body representation in whom only one of these aspects, self-identification, was abnormal. We distinguish such disorders of global body representation from related but distinct disorders and discuss their relevance for the neurobiology of bodily self-consciousness.

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Section: Illusory Own Body Perceptions: Head and Trunk Versus Upper Esupporting

confidence: 63%

Illusory own body perceptions: Case reports and relevance for bodily self-consciousness

Heydrich

Diéguez

Grünwald

et al. 2010

Consciousness and Cognition

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“…Previous studies described similar complex illusory body perceptions in the form of bilateral sensations of levitation while stimulating the medial parietal cortex around the subparietal sulcus (Richer, Martinez, Robert, Bouvier, & Saint‐Hilaire, ) but no reference was made to the corresponding network. In addition, disorders of body representation have been studied in patients with epilepsy that present alteration of body perception (sensation of being shifted backward, sensation of the body being invaded by a stranger, diminished awareness of body signals from the trunk or limbs) that were matched with lesions in different brain areas like right intraparietal sulcus, right SMA and superior frontal gyrus (Heydrich et al, ), right posterior parietal cortex (Nightingale, ) or right posterior occipito‐parietal cortex (Gloning, Gloning, Jellinger, & Tschabitscher, ). We consider as strengths of our study the fact that (a) we found 17 instances of rare illusions of body perception that could relate to bodily self‐consciousness by affecting self‐identification (Blanke, ), (2) highlights, for the first time, the involvement of the cingulate cortex in body representation, (3) characterizes the functional networks underlying this process.…”

Section: Discussionmentioning

confidence: 99%

Illusory own body perceptions mapped in the cingulate cortex—An intracranial stimulation study

Popa

Barborică

Scholly

et al. 2019

Human Brain Mapping

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Body awareness is the result of sensory integration in the posterior parietal cortex; however, other brain structures are part of this process. Our goal is to determine how the cingulate cortex is involved in the representation of our body. We retrospectively selected patients with drug‐resistant epilepsy, explored by stereo‐electroencephalography, that had the cingulate cortex sampled outside the epileptogenic zone. The clinical effects of high‐frequency electrical stimulation were reviewed and only those sites that elicited changes related to body perception were included. Connectivity of the cingulate cortex and other cortical structures was assessed using the h2 coefficient, following a nonlinear regression analysis of the broadband EEG signal. Poststimulation changes in connectivity were compared between two sets of stimulations eliciting or not eliciting symptoms related to body awareness (interest and control groups). We included 17 stimulations from 12 patients that reported different types of body perception changes such as sensation of being pushed toward right/left/up, one limb becoming heavier/lighter, illusory sensation of movement, sensation of pressure, sensation of floating or detachment of one hemi‐body. High‐frequency stimulation in the cingulate cortex (1 anterior, 15 middle, 1 posterior part) elicits body perception changes, associated with a decreased connectivity of the dominant posterior insula and increased coupling between other structures, located particularly in the nondominant hemisphere.

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“…She subsequently had visual hallucinations and complex visual auras. Electroencephalogram showed periodic lateralised epileptiform discharges that were arising from the parietal region for which she was treated . In another published case, a patient with bitemporal hemianopsia experienced a phenomenon of vertically split images, similar to as described above.…”

Section: Discussionmentioning

confidence: 52%

“…Electroencephalogram showed periodic lateralised epileptiform discharges that were arising from the parietal region for which she was treated. 12,13 In another published case, a patient with bitemporal hemianopsia experienced a phenomenon of vertically split images, similar to as described above. She was found to have a large suprasellar adenoma that was resected, and her symptoms improved.…”

Section: Discussionmentioning

confidence: 61%

Coining the Pablo Picasso Syndrome

Suri

Ali

2020

Headache

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Background The Alice in Wonderland Syndrome has been well described in the literature. Along with sensory disturbances, patients notably experience metamorphopsias, or distortions in size (micropsia/macropsia) and distance (teleopsia), particularly of body parts. Some migraineurs, however, report dislocation and disorientation of body parts, which are common features found in paintings of Pablo Picasso. Methods A 60‐year‐old female with a 20‐year history of chronic migraine presented for evaluation of frequent headaches and visual disturbances. In between her attacks of migraine, she would occasionally notice alterations which she describes as a “Picasso” painting. When looking at people, she would note their ear on top of their head, or their right arm would be short and attached to the face. This would occur 1‐2 times per week and would last 5 to 10 minutes. Inanimate objects, however, would not appear distorted. Results The available literature, including published works and biographies, suggests Picasso did not suffer from migraine. Nonetheless, careful descriptions taken from migraineurs with visual disturbances may uncover features that resemble his paintings, be it dislocation of limbs with hints of cubism, as reported above, or illusory splitting as has been previously reported. Conclusion Dislocation or disorientation of body parts as a migraine‐related visual phenomenon is rare and only sparsely reported in the medical literature. Coining of a “Pablo Picasso Syndrome” may better describe this occurrence.

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Über einen obduzierten fall von optischer körperschemastörung und héautoskopie

Cited by 9 publications

References 9 publications

Illusory own body perceptions: Case reports and relevance for bodily self-consciousness

Illusory own body perceptions: Case reports and relevance for bodily self-consciousness

Illusory own body perceptions mapped in the cingulate cortex—An intracranial stimulation study

Coining the Pablo Picasso Syndrome

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