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--- abstract: "Monkeys, given the opportunity to move between two featureless chambers, 'sample' first one, then the other in a way which reflects a Poisson decision process. The rate of sampling is higher in red light than in blue and in loud noise than in quietness. We suggest that monkeys 'tune' their sampling rate to the a priori probability of change in the environment." altloc: [] chapter: ~ commentary: ~ commref: ~ confdates: ~ conference: ~ confloc: ~ contact_email: ~ creators_id: [] creators_name: - family: Humphrey given: Nicholas K honourific: '' lineage: '' - family: Keeble given: Graham R honourific: '' lineage: '' date: 1978 date_type: published datestamp: 2001-08-16 department: ~ dir: disk0/00/00/17/36 edit_lock_since: ~ edit_lock_until: ~ edit_lock_user: ~ editors_id: [] editors_name: [] eprint_status: archive eprintid: 1736 fileinfo: /style/images/fileicons/application_pdf.png;/1736/2/Perception78.pdf full_text_status: public importid: ~ institution: ~ isbn: ~ ispublished: pub issn: ~ item_issues_comment: [] item_issues_count: 0 item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: 'timing behaviour, sampling, bio-rhythms, colour, noise, monkeys ' lastmod: 2011-03-11 08:54:46 latitude: ~ longitude: ~ metadata_visibility: show note: ~ number: ~ pagerange: 343-348 pubdom: FALSE publication: Perception publisher: ~ refereed: TRUE referencetext: ~ relation_type: [] relation_uri: [] reportno: ~ rev_number: 10 series: ~ source: ~ status_changed: 2007-09-12 16:40:00 subjects: - behav-neuro-sci - bio-ani-behav - psy-bio succeeds: ~ suggestions: ~ sword_depositor: ~ sword_slug: ~ thesistype: ~ title: Effects of red light and loud noise on the rate at which monkeys sample the sensory environment type: journalp userid: 123 volume: 7