Transformational Sensorimotor Mapping

In explaining the difference between standard and nonstandard mapping, prism adaptation serves as a case in point. When a diffracting prism distorts visual input, objects that lie directly in front of a person might appear to be 10° off to the right. When the person tries to reach to the object, he or she will reach ~ 10° too far to the right. However, the motor system can recognize this error and correct it through the process of motor adaptation, similar to that described previously for studying internal models (see Section IV.B). This behavior serves as a paradigmatic example of standard mapping: The motor system achieves the goal of directing the hand to the object, even though the prism distorts the object's location. In contrast, people can decide voluntarily to make a movement ~ 10° to the right of an object's location. This behavior serves as an example of nonstandard mapping. The motor system can produce an output that uses the spatial information in an object and transforms it according to some algorithm (such as 10° to the right) to produce a more flexible motor output than a system limited to standard mapping. This form of nonstandard mapping can be termed transformational mapping because the motor output depends on some transformed function of the spatial input.

Anxiety and Depression 101

Anxiety and Depression 101

Everything you ever wanted to know about. We have been discussing depression and anxiety and how different information that is out on the market only seems to target one particular cure for these two common conditions that seem to walk hand in hand.

Get My Free Ebook

Post a comment