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, Jahrgang 10, 2016, S. 105.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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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 -