What is "amorphosynthesis"

n. A medical condition where the patient is unaware of somatic sensations from one side of the body, usually a sign of lesion in the left parietal lobe.

Amorphosynthesis is a medical condition where the patient is unaware of somatic sensations from one side of the body; the left side is most commonly affected. This condition is usually a sign of a lesion in the right parietal lobe. The patient also shows loss of proprioception and spatial relationships. Additionally, when the somatosensory association area is damaged one loses the ability to recognize a complex object on the opposite side of the body.