Right-sided anarchic (alien) hand: a longitudinal study.
نویسندگان
چکیده
A patient with a bilateral frontal vascular lesion, encroaching upon the mesial cortex on the left and damage of the corpus callosum showed the 'alien hand' phenomenon on the right. The various hypotheses as to the nature of the lesion for the alien hand phenomenon to appear are discussed. It is proposed that an acute clinical condition, following a lesion of the corpus callosum only, should be differentiated from a chronic condition resulting from the additional fronto-mesial lesion.
منابع مشابه
Anarchic hand with abnormal agency following right inferior parietal lobe damage: a case report.
Anarchic hand syndrome (AHS) is characterized by goal-directed movements performed without volitional control (agency). Different AHS subtypes have been identified; however, few studies have examined the posterior subtype. We report a case of AHS following right-hemisphere parietal damage, with left-sided somatosensory and proprioceptive impairment. Agency was examined for nonanarchic (volition...
متن کاملIsolation of a right hemisphere cognitive system in a patient with anarchic (alien) hand sign.
We report evidence of isolated conceptual knowledge in the right hemisphere of a woman with chronic anarchic hand sign after ischemic infarction of the central four-fifths of the corpus callosum. Limited visual information was available to the right hemisphere, access to medial temporal structures subserving memory was disrupted and disconnection from left hemisphere language structures was com...
متن کاملHostile interactions between body and self
The anarchic hand While the " alien hand sign " designates the feeling of non-belonging of one's own hand, the sign of the " anarchic hand " involves the loss of control over complex goal-directed motor behavior that runs counter to a patient's intentions. 1 Antagonistic actions range from the mildly annoying (unzipping a just-zipped jacket; taking back coins just handed over to another person)...
متن کاملA Case of Right Alien Hand Syndrome Coexisting with Right-Sided Tactile Extinction
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 co...
متن کاملStructural connectivity in a paediatric case of anarchic hand syndrome
BACKGROUND "Anarchic hand" is a rare condition characterised by non-volitional, goal-directed movements of one arm. We report a case with analysis of structural and functional connectivity. CASE PRESENTATION A 15 year old girl developed intermittent symptoms of intermanual conflict or anarchic hand as a result of traumatic brain injury during which she sustained a callosal bleed. Resting-stat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Neuropsychologia
دوره 29 11 شماره
صفحات -
تاریخ انتشار 1991