Progressive ratio schedules of reinforcement.
Killeen PR, Posadas-Sanchez D, Johansen EB, Thrailkill EA.
Killeen PR, et al.
J Exp Psychol Anim Behav Process. 2009 Jan;35(1):35-50. doi: 10.1037/a0012497.
J Exp Psychol Anim Behav Process. 2009.
PMID: 19159161
Free PMC article.
Pigeons' pecks produced grain under progressive ratio (PR) schedules, whose response requirements increased systematically within sessions. ...Models for response rate and pause duration based on Bizo and Killeen (1997) described performance on AP schedules; GP sche …
Pigeons' pecks produced grain under progressive ratio (PR) schedules, whose response requirements increased systematically within ses …