A Case of Right Alien Hand Syndrome Coexisting with Right-Sided Tactile Extinction

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A Case of Right Alien Hand Syndrome Coexisting with Right-Sided Tactile Extinction. / Schaefer, Michael; Denke, Claudia; Apostolova, Ivayla; Heinze, Hans-Jochen; Galazky, Imke.

In: FRONT HUM NEUROSCI, Vol. 10, 2016, p. 105.

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@article{9958b4e6a6054d99a99828c9e6e3fee8,
title = "A Case of Right Alien Hand Syndrome Coexisting with Right-Sided Tactile Extinction",
abstract = "The alien hand syndrome (AHS) is a fascinating movement disorder. Patients with AHS experience one of their limbs as alien, which acts autonomously and performs meaningful movements without being guided by the intention of the patient. Here, we report a case of a 74-years old lady diagnosed with an atypical Parkinson syndrome by possible corticobasal degeneration. The patient stated that she could not control her right hand and that she felt like this hand had her own life. We tested the patient for ownership illusions of the hands and general tactile processing. Results revealed that when blindfolded, the patient recognized touch to her alien hand only if it was presented separated from touch to the other hand (bilateral asynchronous touch). Delivering touch synchronously to both the alien and the healthy hand resulted in failure of recognizing touch to the alien hand (bilateral synchronous touch). Thus, AHS here co-existed with right-sided tactile extinction and is one of only very few cases in which the alien hand was felt on the right side. We discuss the results in the light of recent research on AHS.",
keywords = "Journal Article",
author = "Michael Schaefer and Claudia Denke and Ivayla Apostolova and Hans-Jochen Heinze and Imke Galazky",
year = "2016",
doi = "10.3389/fnhum.2016.00105",
language = "English",
volume = "10",
pages = "105",
journal = "FRONT HUM NEUROSCI",
issn = "1662-5161",
publisher = "Frontiers Research Foundation",

}

RIS

TY - JOUR

T1 - A Case of Right Alien Hand Syndrome Coexisting with Right-Sided Tactile Extinction

AU - Schaefer, Michael

AU - Denke, Claudia

AU - Apostolova, Ivayla

AU - Heinze, Hans-Jochen

AU - Galazky, Imke

PY - 2016

Y1 - 2016

N2 - The alien hand syndrome (AHS) is a fascinating movement disorder. Patients with AHS experience one of their limbs as alien, which acts autonomously and performs meaningful movements without being guided by the intention of the patient. Here, we report a case of a 74-years old lady diagnosed with an atypical Parkinson syndrome by possible corticobasal degeneration. The patient stated that she could not control her right hand and that she felt like this hand had her own life. We tested the patient for ownership illusions of the hands and general tactile processing. Results revealed that when blindfolded, the patient recognized touch to her alien hand only if it was presented separated from touch to the other hand (bilateral asynchronous touch). Delivering touch synchronously to both the alien and the healthy hand resulted in failure of recognizing touch to the alien hand (bilateral synchronous touch). Thus, AHS here co-existed with right-sided tactile extinction and is one of only very few cases in which the alien hand was felt on the right side. We discuss the results in the light of recent research on AHS.

AB - The alien hand syndrome (AHS) is a fascinating movement disorder. Patients with AHS experience one of their limbs as alien, which acts autonomously and performs meaningful movements without being guided by the intention of the patient. Here, we report a case of a 74-years old lady diagnosed with an atypical Parkinson syndrome by possible corticobasal degeneration. The patient stated that she could not control her right hand and that she felt like this hand had her own life. We tested the patient for ownership illusions of the hands and general tactile processing. Results revealed that when blindfolded, the patient recognized touch to her alien hand only if it was presented separated from touch to the other hand (bilateral asynchronous touch). Delivering touch synchronously to both the alien and the healthy hand resulted in failure of recognizing touch to the alien hand (bilateral synchronous touch). Thus, AHS here co-existed with right-sided tactile extinction and is one of only very few cases in which the alien hand was felt on the right side. We discuss the results in the light of recent research on AHS.

KW - Journal Article

U2 - 10.3389/fnhum.2016.00105

DO - 10.3389/fnhum.2016.00105

M3 - SCORING: Journal article

C2 - 27014036

VL - 10

SP - 105

JO - FRONT HUM NEUROSCI

JF - FRONT HUM NEUROSCI

SN - 1662-5161

ER -