Selective attention in pigeon temporal discrimination.
Cues can vary in how informative they are about when specific outcomes, such as food availability, will occur. This study was an experimental investigation of the functional relation between cue informativeness and temporal discrimination in a peak-interval (PI) procedure. Each session consisted of...
| Publicado en: | Quarterly Journal of Experimental Psychology Vol. 72; no. 2; pp. 298 - 311 |
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| Autores principales: | , |
| Formato: | Artículo |
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Sage Publications Inc.
Feb2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=134311647&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 134311647 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 17470218 1US5 jtl: Quarterly Journal of Experimental Psychology issn: 17470218 maglogo: Y pubinfo: dt: Feb2019 vid: 72 iid: 2 pid: 344 pub: Sage Publications Inc. artinfo: ui: 134311647 10.1080/17470218.2017.1360921 ppf: 298 ppct: 13 formats: tig: atl: Selective attention in pigeon temporal discrimination. aug: au: Subramaniam, Shrinidhi Kyonka, Elizabeth G. E. affil: Department of Psychology, West Virginia University, Morgantown, WV, USA Johns Hopkins University School of Medicine, Baltimore, MD, USA Department of Psychology, University of New England, Armidale, NSW, Australia su: Randomized controlled trials Pigeons Probability theory Meta-analysis Numerical analysis sug: subj: Randomized controlled trials All other poultry production Pigeons Probability theory Meta-analysis Numerical analysis keyword: Expectancy key peck peak-interval procedure pigeon selective attention timing Expectancy key peck peak-interval procedure pigeon selective attention timing ab: Cues can vary in how informative they are about when specific outcomes, such as food availability, will occur. This study was an experimental investigation of the functional relation between cue informativeness and temporal discrimination in a peak-interval (PI) procedure. Each session consisted of fixed-interval (FI) 2- and 4-s schedules of food and occasional, 12-s PI trials during which pecks had no programmed consequences. Across conditions, the phi (ϕ) correlation between key light color and FI schedule value was manipulated. Red and green key lights signaled the onset of either or both FI schedules. Different colors were either predictive (ϕ = 1), moderately predictive (ϕ = 0.2-0.8) or not predictive (ϕ = 0) of a specific FI schedule. This study tested the hypothesis that temporal discrimination is a function of the momentary conditional probability of food; that is, pigeons peck the most at either 2 s or 4 s when ϕ = 1 and peck at both intervals when ϕ < 1. Response distributions were bimodal Gaussian curves; distributions from red- and green-key PI trials converged when ϕ ≤ 0.6. Peak times estimated by summed Gaussian functions, averaged across conditions and pigeons, were 1.85 and 3.87 s; however, pigeons did not always maximize the momentary probability of food. When key light color was highly correlated with FI schedules (ϕ ≥ 0.6), estimates of peak times indicated that temporal discrimination accuracy was reduced at the unlikely interval, but not the likely interval. The mechanism of this reduced temporal discrimination accuracy could be interpreted as an attentional process. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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