IB SEHS SL Class Notes Motor Programs and Feedback Topic 5.2 Motor Programs (Programmes) ● A series of movements stored in long term memory (LTM) ● Retrieved from memory as a whole ● Put into action by the effector mechanism ● Operated under open or closed loop control Open and Closed Loops ● The motor program is stored as an exact model of the movement to be produced in the future ● Open Loop – movements that are produced without reference to any feedback because they happen too fast (e.g. fast typing) ● Closed Loop – movements that are guided by feedback, as they are slow enough to change (e.g. there is a constant error detection mechanism operating.) ● Adams’ Closed Loop Theory – Suggests that as a particular movement is reinforced during learning, it is stored in the long-term memory as a memory trace. It is strong if: ● The movement has been extensively rehearsed ● The information has been stored in ‘chunks’ so that relationships between individual subroutines are well established ● The movement or stimulus has strong emotional intensity (important to the learner) ● The kinesthetic image of the movement is reinforced by visual imagery (mind pictures). ● Memory Trace – include both subroutines and executive programs of the movement; the performer has a memory trace of the whole movement and the various elements of it (e.g. a gymnast learning the cartwheel has memory of the leg extension, the hand positions, the landing, the timing, etc.) ● Perceptual Trace – is recorded from STM and compared with the memory trace. If the match is good, the movement continues, if not, the learner tries to correct the error (e.g. by adjusting the foot position as it lands to achieve a better balance) Schema Theory – ● The motor program is stored as a generalized model or set of rules about how a skill is to be produced given the conditions at the time. Remember variability when teaching a skill. ● Recall – responsible for the production of movement that are stored in LTM ● Initial conditions under which the movement is to be produced (e.g. where am I in relation to the ball?) ● The required response specifications; the movement requirements (e.g. what have I got to do and how do I do it?) ● Recognition – responsible for evaluating the movement response. Initially stored in short-term memory (STM) for comparison with recall schema, but after completion, is stored in LTM. 1 IB SEHS SL Class Notes Motor Programs and Feedback Topic 5.2 ● ● Sensory consequences (the kinesthetic feel of the movement) Response outcomes (e.g. what happened as a result of the movement) People learn from errors Types of feedback ● Intrinsic feedback – self regulated – outside help is not needed ● Extrinsic feedback – provided by others (e.g. coach, teacher, teammates), or devices (e.g. stopwatches, HR monitor) ● Two major forms of feedback: o Knowledge of results (KR) – post-response info based on the outcome of the action. (e.g. long jumper’s length, runner’s time) o Knowledge of performance (KP) post-response info based on the nature of the movement. ● Positive – informing the player/student what they’ve done well ● Negative – informing the player/student what they’ve done wrong (demotivating; damaging, especially to beginners) ● Prescriptive – explaining/demonstrating what should be done or how to do the skill ● Concurrent – feedback received during the skill/tasks/game (coaches yelling during play) ● Terminal – feedback received at the completion of skill/tasks/game (post-game critique) The Role of Feedback in the Learning Process ● Reinforcement of Learning – the giving of a reward such that the rewarded behavior will be repeated;(e.g. praise for a well-timed pass in hockey) ● Motivation – the internal state of a performer, which drives them to behave or perform in a particular way. ● Adaptation of Performance – intrinsic feedback (e.g. a javelin thrower might know that the throw ‘felt good’, but waits in anticipation of the javelin to land to see if the throw is as long as he feels it is. (Knowledge of Performance/Knowledge of Results) ● Punishment – an unpleasant response designed to prevent the occurrence of unwanted behavior. 2