Before revision: In order to interact with objects in our environment, we rely on an understanding of the actions that can be performed on them, and the extent to which they rely or have an effect on the propertiesof the object. This knowledge is called the object "affordance".
After revision: In order to interact with objects in our environment, we rely on an understanding of the actions that can be performed on them, as well as their properties. When considering concrete motor actions, this knowledge has been called the object "affordance".