Chapter 8: control of movement psych 211 behavioral neuroscience. Case study: mr. j: had a severe stroke and had damage to left parietal lobe. Was not able to wave hello when asked to do so, but could do it automatically when meeting someone since it was something learned. He couldn"t make even a simple movement out of context. Left parietal lobe is involved in the control of movements- especially sequences of movement-that are not dictated by the context. Ultimate function of the nervous system: control of behavior . Note: a disproportionate amount of cortical area is devoted to movements of the fingers and the muscles used for speech: primary cortex is organized in terms of particular movements of particular parts of the body. Each movement may be accomplished by the contraction of several muscles. Examples: when the arm is extended in a particular direction, many muscles in the shoulder, upper arm, and forearm must contract.