Flow has been described as positive experiences of intense concentration, distorted time passage, and a loss of self-consciousness that result from matching task difficulty to a person's skill level. It has been studied in many different populations and has been associated with a number of positive outcomes, including improved life satisfaction…

This paper introduces the Government-Binding Theory of grammar and offers examples of the theory's use in areas of language development, child language disorders, and adult aphasia. Discussed are the levels of representation of Universal Grammar, subtheories that constrain the representations at each level, parameter setting, core grammar, and…