Author

Jonathon O. Ward

University of Colorado Boulder

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Biology Disciplines

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Animal Behavior & Cognition· 1

Signature Assays, Organisms & Methods

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Organism:rat· 1 Approach:statistical model· 1

Frequent Co-Authors

Caleb I Hodges· 1 shared Eamonn P. DuffyiD· 1 shared Laura M. SabaiD· 1 shared Luanne H. Hale· 1 shared Marissa A. EhringeriD· 1 shared Ryan K. BachtelliD· 1 shared Tolulope J. Ajanaku· 1 shared

Activity by Year

2026-2026 · peak 1/yr

Co-Author Collaboration Network

7 top collaborators · 21 mutual co-author links

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1 shared paperAnimal Behavior & Cognition

Caleb I Hodges

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1 paper

Recent·Most cited

Animal Behavior & CognitionbioRxivPreprintAug 25, 2026

Voluntary oxycodone self-administration produces analgesic tolerance and sex-dependent hyperalgesia across genetically diverse rats

Tolulope J. Ajanaku, Eamonn P. Duffy, Jonathon O. Ward…·Ryan K. Bachtell

This study shows that voluntary oxycodone self-administration in rats leads to analgesic tolerance and sex-dependent hyperalgesia, with genetic strain differences in thermal sensitivity and analgesic response.

DOI 10.64898/2026.08.20.745912

ratstatistical model

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