What Happens If You Damage Your Primary Motor Cortex

When an injury damages the primary motor cortex, the person will typically experience a loss of coordination and poor dexterity. For example, the person usually loses the ability to perform fine motor movements that involve the muscles of the hands, fingers, and wrists.

What is the primary motor cortex responsible for?

Excerpt. The primary function of the motor cortex is to generate signals to direct the movement of the body. It is part of the frontal lobe and is anterior to the central sulcus. … These fibers directly synapse with motor neurons of the spinal cord.

What happens if you damage your sensory cortex?

Damage to the somatosensory cortex can produce numbness or sometimes paraesthesia, which is a tingling sensation in certain parts of the body. Numbness can result due to damage in the cortex which then affects the receptors on the body for certain areas.