Title: classical conditioning Long Title: IUPAC Gold Book - classical conditioning DOI: 10.1351/goldbook.11687 Status: current Definition Learning in which a behavior comes to be elicited as a reflex response by association with a neutral antecedent stimulus through repetition of the stimulus-response pairing. Note The neutral antecedent stimulus such as the ringing of a bell is repetitively paired with an unconditioned stimulus such as food to elicit a response such as salivation. Related Terms - conditioned stimulus: https://goldbook.iupac.org/terms/view/12095 - stimulus: https://goldbook.iupac.org/terms/view/12094 - unconditioned stimulus: https://goldbook.iupac.org/terms/view/12096 Source - PAC, 2015, 87, 841. 'IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)' on page 858 (https://doi.org/10.1515/pac-2015-0103) Other Outputs - html: https://goldbook.iupac.org/terms/view/11687/html - json: https://goldbook.iupac.org/terms/view/11687/json - xml: https://goldbook.iupac.org/terms/view/11687/xml Citation: Citation: 'classical conditioning' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.11687 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-05-14T17:00:28+00:00