Subjects with internal or external locus of control were instructed to remeber as much as possible from an array of letter strings generated from a finite state grammar. While both groups attended to the exemplars, internals extracted more invariance and hence learned more about the underlying grammatical structure. (Author/SJL)

Investigated was the hypothesis that high arousal increases processing of physical characteristics and reduces processing of semantic characteristics. While introverts and extroverts had equivalent scanning rates for physical features, introverts were significantly slower in searching for semantic features of category membership, indicating…