The inability to perceive the texture and shape of an object occurs in lesion of
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
Spinoreticular tract
Nucleus cuneatus
Lateral spinothalamic tract
Nucleus gracilis
Nervous system