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پروپریوسپشن آگاهانه
A lesion of the posterior columns results in a decrease in conscious proprioception and stereognosis (also vibration sense) ipsilaterally below the level of the lesion.
(Actually, the deficit is mostly in stereognosis, since conscious proprioception and vibration sense are to some extent represented in more lateral regions of the cord.)
(In this book where it is stated that a patient presents with "proprioceptive loss," this refers to loss of conscious proprioceptive sensation, as tested by asking the patient to describe the position of a limb.)
A patient experiences decreased conscious proprioception in the left upper extremity, decreased pain-temperature sensation in the left face, and decreased pain-temperature sensation on the right side of the body below the head.
The above symptoms plus conscious proprioceptive loss in the right upper and lower extremities.
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