2-Minute Neuroscience: Alien Hand SyndromeYouTube↗  IA↗(long shot)
Science & Technology  8K views 236 likes 1 dislikes   01 Jun 2020
Neuroscientifically Challenged 695K subscribers United States YouTube↗


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Alien hand syndrome is a rare disorder that typically affects the hand, but can also occur
متلازمة اليد الغريبة هو اضطراب نادر عادة ما يؤثر على اليد ، ولكن يمكن أن يحدث أيضًا
in the leg.
في الساق.
In a patient suffering from alien hand syndrome, their hand may seem to act independent of
في مريض يعاني من متلازمة اليد الغريبة ، قد يبدو أن يدهم تتصرف بشكل مستقل عن
their desires.
رغباتهم.
It may interact with objects the patient has no desire to interact with, or even interfere
قد يتفاعل مع الأشياء التي يمتلكها المريض لا رغبة في التفاعل مع ، أو حتى التدخل
with tasks performed with the other hand.
مع المهام التي يتم تنفيذها من ناحية أخرى.
One early case report described a patient whose own hand tried to choke her.
وصف أحد تقارير الحالة المبكرة مريضًا حاولت يدها خنقها.
Many patients also begin to feel that their hand is not actually their own.
يبدأ العديد من المرضى أيضا في الشعور بأنهم اليد ليست في الواقع ملكهم.
Alien hand syndrome most commonly occurs as part of corticobasal syndrome, but there are
تحدث متلازمة اليد الغريبة في الغالب جزء من متلازمة القشرة القشرية ، ولكن هناك
many other causes as well, like stroke and Creutzfeldt-Jakob disease.
العديد من الأسباب الأخرى كذلك ، مثل السكتة الدماغية و مرض كروتزفيلد جاكوب.
Although there are a number of areas of the brain that may be damaged in alien hand syndrome,
بالرغم من وجود عدد من المجالات الدماغ الذي قد يتلف في متلازمة اليد الغريبة ،
some of the most common variants of the syndrome involve damage to the corpus callosum, medial
بعض أكثر متغيرات المتلازمة شيوعًا تنطوي على تلف الجسم الثفني ، وسطي
frontal lobe, and/or parietal lobe.
الفص الجبهي ، و / أو الفص الجداري.
It is still not fully understood how damage to these areas leads to alien hand syndrome,
لا يزال غير مفهومة تماما كيف الضرر لهذه المناطق تؤدي إلى متلازمة اليد الغريبة ،
but researchers have proposed a number of hypotheses.
لكن الباحثين اقترحوا عددًا من الفرضيات.
The corpus callosum is a large collection of nerve fibers that connects the two cerebral
الجسم الثفني هو مجموعة كبيرة من الألياف العصبية التي تربط بين الدماغين
hemispheres.When the corpus callosum is damaged, it may impair the ability of the left and
عندما يتلف الجسم الثفني ، قد يضعف قدرة اليسار و
right cerebral hemispheres to coordinate movement between limbs, and to inhibit unwanted movements
نصفي المخ الأيمن لتنسيق الحركة بين الأطراف ، وتثبيط الحركات غير المرغوب فيها
in the alien hand while one is making intentional movements with the functional hand.
في اليد الغريبة بينما يكون المرء متعمدا حركات اليد الوظيفية.
The medial frontal lobe contains the supplementary motor area, which is thought to be involved
يحتوي الفص الجبهي الإنسي على المكمل المنطقة الحركية ، التي يعتقد أنها متورطة
in the initiation of movement as well as the inhibition of unwanted movements.
في بدء الحركة وكذلك تثبيط الحركات غير المرغوب فيها.
Damage to this area thus may lead to an impaired ability to inhibit unwanted movements in the
وبالتالي قد يؤدي تلف هذه المنطقة إلى ضعف القدرة على منع الحركات غير المرغوب فيها في
alien limb.
الطرف الغريبة.
Because the parietal lobe is an important area for processing sensory information, damage
لأن الفص الجداري مهم منطقة لمعالجة المعلومات الحسية والضرر
here may result in a deficit of sensory input from the alien limb, which may contribute
هنا قد يؤدي إلى عجز في المدخلات الحسية من الطرف الغريب ، والتي قد تساهم
to problems coordinating movement in the alien limb and also lead to the patient perceiving
لمشاكل تنسيق الحركة في الغريبة ويؤدي أيضا إلى إدراك المريض
the limb as foreign.
الطرف كأجنبي.
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