Domain-Specific Increases in Stage of Performance in a Complete Theory of the Evolution of Human Intelligence

Abstract

The evolution of humans required performing increasingly hierarchically complex tasks within multiple domains. Hierarchical complexity increases task by task. Tasks occur within, and differ by, determinable domains, their stages of performance measurable using the Model of Hierarchical Complexity. How well one performs within single and multiple domains is considered to indicate intelligence. Original task-initiation is more difficult than imitational learning and can create new domains. Levels of support reduce task difficulty, increasing performance. Task-performance may be generalized to other domains. Stages of developing tools and empathy are presented to demonstrate domains' roles in the evolution of human intelligence.

KEYWORDS:

• Domain
• domain-specificity
• evolution
• hierarchical complexity
• generalization
• human intelligence
• levels of support

Notes

^a Reprinted with permission. Adapted from M. L. Commons, and P. M. Miller. 2002. A complete theory of human evolution of intelligence must consider stage changes. Behavioral and Brain Sciences 25(3): 405. Copyright © 2002 by Behavioral and Brain Sciences

^b Reprinted with permission. Adapted from M. L. Commons and C. A. Wolfsont. 2002. A complete theory of empathy must consider stage changes. Behavioral and Brain Sciences 25(1): 30–31. Copyright © 2002 by Behavioral and Brain Sciences