prototypical direct manipulations

"Piaget has hypothesized that infants first learn about causation by realizing that they can directly manipulate objects around them—pull off their blankets, throw their bottles, drop toys. There is, in fact, a stage in which infants seem to "practice" these manipulations, e.g., they repeatedly drop their spoons. Such direct manipulations, even on the part of infants, involve certain shared features that characterize the notion of direct causation that is so integral a part of our constant everyday functioning in our environment—as when we flip light switches, button our shirts, open doors, etc. Though each of these actions is different, the overwhelming proportion of them share features of what we may call a "prototypical" or "paradigmatic" case of direct causation." (#60 1256)

"These shared features include: The agent has as a goal some change of state in the patient. The change of state is physical. The agent has a "plan" for carrying out this goal. The plan requires the agent's use of a motor program. The agent is in control of that motor program. The agent is primarily responsible for carrying out the plan. The agent is the energy source (i.e., the agent is directing his energies toward the patient), and the patient is the energy goal (i.e., the change in the patient is due to an external source of energy). The agent touches the patient either with his body or an instrument (i.e., there is a spatiotemporal overlap between what the agent does and the change in the patient). The agent successfully carries out the plan. The change in the patient is perceptible. The agent monitors the change in the patient through sensory perception. There is a single specific agent and a single specific patient." (#60 1261)

"(In physical causation the agent and patient are events, a physical law takes the place of plan, goal, and motor activity, and all of the peculiarly human aspects are factored out.)" (#60 1285)