title: The Arithmetic of Emotion: Integration of Incidental and Integral Affect in Judgments and Decisions.
abstract: Research has demonstrated that two types of affect have an influence on judgment and decision making: incidental affect (affect unrelated to a judgment or decision such as a mood) and integral affect (affect that is part of the perceiver's internal representation of the option or target under consideration). So far, these two lines of research have seldom crossed so that knowledge concerning their combined effects is largely missing. To fill this gap, the present review highlights differences and similarities between integral and incidental affect. Further, common and unique mechanisms that enable these two types of affect to influence judgment and choices are identified. Finally, some basic principles for affect integration when the two sources co-occur are outlined. These mechanisms are discussed in relation to existing work that has focused on incidental or integral affect but not both.
authors.affiliation: Linköping UniversityLinköping, Sweden; Decision ResearchEugene, OR, USA.
authors.forename: Daniel
authors.initials: D
authors.lastname: Västfjäll
authors.affiliation: Decision Research Eugene, OR, USA.
authors.forename: Paul
authors.initials: P
authors.lastname: Slovic
authors.affiliation: Decision Research Eugene, OR, USA.
authors.forename: William J
authors.initials: WJ
authors.lastname: Burns
authors.affiliation: Linköping University Linköping, Sweden.
authors.forename: Arvid
authors.initials: A
authors.lastname: Erlandsson
authors.affiliation: Linköping University Linköping, Sweden.
authors.forename: Lina
authors.initials: L
authors.lastname: Koppel
authors.affiliation: Linköping University Linköping, Sweden.
authors.forename: Erkin
authors.initials: E
authors.lastname: Asutay
authors.affiliation: Linköping University Linköping, Sweden.
authors.forename: Gustav
authors.initials: G
authors.lastname: Tinghög
keywords: decision making; emotions; incidental affect; integral affect; judgment