Phylogenetic model

Asserts that the behavior and development of an individual is a function in some unspecified way of the interaction between an individual's biological state and experience as modified by cognition or mental activity. The phylogenetic model is often symbolized by the quasi-mathematical formula B_I = f[(B x E)C], where B_I is the behavior of the individual; f is "a function of;" B is the individual's biological state; E is experience, and; C is cognition or mental activity. The brackets and parentheses within brackets convey the idea of complex interactions among enclosed elements. (See mental representation; phylogenetic perspective)