refers to the loss or absence of the ability to perform learned purposeful movements, for example, dressing oneself or driving a car, despite not experiencing any motor deficits. The condition is believed to represent an impaired ability to plan, select, and sequence the motor execution of movements, which are all part of executive functioning. This may develop as a result of brain injury, tumor, or stroke (acquired apraxia). Conversely, it may be present at birth (developmental apraxia). There are several categories of apraxia, including dressing apraxia, constructional apraxia, and oral apraxia.
APRAXIA: "A person suffering from apraxia is unable to perform a sequence of acts that are required for goal accomplishment - for example, unlocking and then driving a car."