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Temporal map formation in appetitive second-order conditioning in rats

Lookup NU author(s): Dr Domhnall Jennings



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


Three experiments examined whether second-order conditioning resulted in the formation of a fully-featured temporal map, as proposed by the temporal coding hypothesis. Experiments 1 and 2 examined second-order conditioning with different first- and second-order relationships. Measures of the strength of second-order conditioning were mostly consistent with the temporal coding hypothesis; second-order conditioning was best with arrangements in which CS2 occurred prior to the time that the US normally occurred during CS1-US presentations. However, there was no evidence of anticipatory timing during CS2 during second-order conditioning. A third experiment directly examined whether a fully-featured temporal map was formed during second-order conditioning by examining the acquisition of anticipatory timing in subsequent reinforced second-order trials. The results of Experiment 3 suggested that the effects obtained in Experiments 1 and 2 were due to learning of the temporal order and coincidence of events that resulted in the formation of an ordinal temporal map, but that precise durations were not encoded.

Publication metadata

Author(s): Jennings DJ, Kirkpatrick K

Publication type: Article

Publication status: Published

Journal: Behavioural Processes

Year: 2018

Volume: 154

Pages: 60-72

Print publication date: 01/09/2018

Online publication date: 06/02/2018

Acceptance date: 01/02/2018

Date deposited: 20/03/2018

ISSN (print): 0376-6357

ISSN (electronic): 1872-8308

Publisher: Elsevier BV


DOI: 10.1016/j.beproc.2018.02.001


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