title: WITHDRAWN: Use of Interval Schedules to Examine Motivation and Sustained Attention.
abstract: This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
authors.forename: N C
authors.initials: NC
authors.lastname: Cross
authors.forename: J J
authors.initials: JJ
authors.lastname: Chelonis
authors.forename: M N
authors.initials: MN
authors.lastname: Finch
authors.forename: M C
authors.initials: MC
authors.lastname: Edwards
authors.forename: R L
authors.initials: RL
authors.lastname: Baldwin