Rat choice in rapidly changing concurrent schedules.
In two experiments, experimentally naïve rats were trained in concurrent variable‐interval schedules in which the reinforcer ratios changed daily according to a pseudorandom binary sequence. In Experiment 1, relative response rates showed clear sensitivity to current‐session reinforcer ratios, but n...
| Publicado en: | Journal of the Experimental Analysis of Behavior Vol. 109; no. 2; pp. 313 - 336 |
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| Autores principales: | , , , |
| Formato: | Artículo |
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Wiley-Blackwell
Mar2018
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| Materias: | |
| 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=128731813&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 128731813 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00225002 JOE jtl: Journal of the Experimental Analysis of Behavior issn: 00225002 maglogo: Y pubinfo: dt: Mar2018 vid: 109 iid: 2 pid: 480 pub: Wiley-Blackwell artinfo: ui: 128731813 10.1002/jeab.314 ppf: 313 ppct: 23 formats: tig: atl: Rat choice in rapidly changing concurrent schedules. aug: au: McLean, Anthony P. Grace, Randolph C. Shevchouk, Olesya T. Cording, Jacinta R. affil: University of Canterbury, New Zealand University of Gothenburg, Sweden su: Pseudonoise sequences (Digital communications) Sensitivity analysis Computer scheduling Data acquisition systems Condensed milk sug: subj: Dry, Condensed, and Evaporated Dairy Product Manufacturing Butter, cheese, and dry and condensed dairy product manufacturing Pseudonoise sequences (Digital communications) Sensitivity analysis Computer scheduling Data acquisition systems Condensed milk keyword: concurrent schedules matching law pseudorandom binary sequence rats reinforcement history sensitivity concurrent schedules matching law pseudorandom binary sequence rats reinforcement history sensitivity ab: In two experiments, experimentally naïve rats were trained in concurrent variable‐interval schedules in which the reinforcer ratios changed daily according to a pseudorandom binary sequence. In Experiment 1, relative response rates showed clear sensitivity to current‐session reinforcer ratios, but not to previous sessions' reinforcer ratios. Within sessions, sensitivity to the current session's reinforcement rates increased steadily, and by session end, response ratios approached matching to the current‐session reinforcer ratios. Across sessions, sensitivity to the current session's reinforcer ratio decreased with continued exposure to the pseudorandom binary sequence, contrary to expectations based on previous studies demonstrating learning sets. Using a second group of naïve rats, Experiment 2 replicated the main results from Experiment 1 and showed that although there were increases over sessions in both changeover rate and response rate during the changeover delay, neither could explain the accompanying reductions in sensitivity. We consider the role of reinforcement history, showing that our results can be simulated using two separate representations, one local and one nonlocal, but a more complex approach will be needed to bring together these results and other history effects such as learning sets and spontaneous recovery. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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