WHAT HAS TO BE LEARNED IN MOTOR LEARNING

The present commentary considers the question of what must be learned in different types of motor skills, thereby limiting the question of w hat should be adjusted in the APG model in order to explain successful learning. It is concluded that an open loop model like the APG might well be able to describe the learning pattern of motor skills in a sta ble, predictable environment. Recent research on saccadic plasticity, however, illustrates that motor skills performed in an unpredictable e nvironment depend heavily on sensory (mostly visual) feedback.