We are pleased to announce that Proffesor Digby Elliott (Emeritus, McMaster University) will be delivering a talk in the Centre for Motor Control Lecture Series. All are welcome.
Over the last few decades, Professor Elliott and his colleagues and students have studied the role of vision in goal-directed reaching/aiming. In this talk, Professor Elliott will present and update a model his research group has developed on the optimization of speed, accuracy and energy expenditure in the control of goal-directed upper limb movements. A unique feature of their model is the distinction between two types of online regulation—limb-target control and impulse control. Limb-target control involves discrete error-reduction late in the movement, while impulse control occurs earlier and is based on a comparison of perceived limb velocity and direction to internal expectations about the characteristics of the limb trajectory. Recent work indicates that these two processes are not as independent as originally thought with early cross-talk between the two forms of regulation.