title: An objective behavioral model of sleep.
abstract: Theories and models are useful in organizing research data. This paper reviews earlier models and a recent model that combines restorative and adaptive models into a two-factor theory. A model emphasizing a three-factor model with modulators is presented as an organizing schema.
authors.affiliation: Department of Psychology, University of Florida, Gainesville 32611.
authors.forename: W B
authors.initials: WB
authors.lastname: Webb
mesh_terms: D000223:Adaptation, Psychological; D001143:Arousal; D002940:Circadian Rhythm; D003463:Cues; D006801:Humans; D012894:Sleep Stages; D012931:Social Environment; D014851:Wakefulness