Loss of ability to perform skilled motor activities such as piano playing, with no paralysis or weakness in specific muscles, might suggest damage to the premotor cortex.
The premotor cortex is part of motor cortex situated in front of the primary motor cortex in the brain. The premotor cortex directly controls behavior by preparing the trunk muscles of the body. The primary role of the premotor cortex is to use information provided by the senses in controlling movements, to understand the actions of others, and to use ideal rules to carry out certain tasks. Different parts of the premotor cortex have various features and they emphasize distinct functions.
