The inability to perceive the texture and shape of an object occurs in lesion of: (A) Spinoreticular tract, (B) Nucleus cuneatus, (C) Lateral spinothalamic tract, (D) Nucleus gracilis
Answer is B. Damage to the dorsal column-medial lemniscus pathway below the crossing point of its fibers results in loss of vibration and joint sense (proprioception) on the same side of the body as the lesion. Damage above the crossing point result a loss of vibration and joint sense on the opposite side of the body to the lesion. Ref: guyton and hall textbook of medical physiology 12 edition page number:691,692,693