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Anatomical electroclinical correlations during an SEEG-recorded seizure with autoscopic hallucination Volume 22, numéro 6, December 2020

TEST YOURSELF

(1) What are the different forms of autoscopic phenomena?

 

(2) Which epileptic network is involved in ictal autoscopic hallucination according to the results of the current study?

 

 

 

 

 

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Answers

(1) Autoscopic phenomena are usually classified on the basis of their phenomenological characteristics into three main types: (1) out of body experience, in which the hallucination of one own body is viewed from an extra personal perspective; (2) autoscopic hallucination or “mirror hallucination”, in which the double of oneself is seen from an internal point of view; and (3) Heautoscopy, an intermediary form, in which there is an illusion that the image represents a doubling of oneself due to difficulty in localizing the “self” and the point of view

Reference: Blanke O, Mohr C. Out-of-body experience, heautoscopy, and autoscopic hallucination of neurological origin Implications for neurocognitive mechanisms of corporeal awareness and self-consciousness. Brain Res Brain Res Rev 2005; 50: 184-99.

 

(2) Our case shows that the most involved area in the seizure was the left lateral parietal cortex, particularly the supramarginal gyrus, together with marked involvement of the ipsilateral posterior superior insula, temporo-occipital junction and contralateral inferior parietal lobule.

 

 

 

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