Cognitive aspects of tool use.

Tool use has traditionally been viewed as primarily a physical activity, with little consideration given to the cognitive aspects that might be involved. In this paper, a new approach to considering tool use in terms of Forms of Engagement is presented and discussed. This approach combines notions of schema from cognitive psychology with the idea of task-specific devices to explain psychomotor aspects of using tools. From the perspective of Forms of Engagement, various aspects of craftwork and skilled tool use are considered.