Schema theory explains motor learning as the development of general rules that allow a performer to produce and adapt movements rather than storing a separate motor program for every action. In IB SEHS, it helps explain how practice and feedback improve the selection, execution, and evaluation of motor skills.
Proposed by Richard Schmidt, the theory suggests that a generalized motor program (GMP) stores the basic pattern for a class of related movements, such as throwing. Its invariant features, including the sequence and relative timing of actions, remain stable. Parameters, such as force, speed, and movement duration, can be adjusted to suit a particular situation.
After performing a movement, the learner uses four types of information:
- Initial conditions: the body position and environmental conditions before movement.
- Response specifications: the parameters selected, such as force or speed.
- Sensory consequences: how the movement felt, looked, or sounded.
- Response outcome: the result, such as whether a basketball shot was successful.
These experiences develop two schemas:
| Schema | Function |
|---|---|
| Recall schema | Selects the movement parameters needed to initiate and perform the action. |
| Recognition schema | Predicts the expected sensory consequences and evaluates the movement using feedback. |
Variable practice strengthens schemas because the performer experiences different distances, forces, speeds, and environmental conditions. For example, practising basketball passes over several distances helps a player adapt the throwing GMP more effectively than repeatedly passing from one fixed position.
A common misconception is that schema theory claims every movement is stored separately. Instead, related movements are generated from a GMP and adapted through parameters.
In an IB response on C.2.1 Motor learning processes, define schema theory, distinguish recall from recognition schema, and apply both to a sporting example. For an explain question, link variable practice and feedback to the performer’s increasing ability to adapt movement.