Related Experiment Video
Updated: Jul 4, 2026

Progressive-ratio Responding for Palatable High-fat and High-sugar Food in Mice
Published on: May 3, 2012
Reinforcing efficacy of interactions with preferred and nonpreferred staff under progressive-ratio schedules
1Queens College, Graduate Center, City University of New York, NY, USA. jjerome1@gmail.com
Abstract:
Research has not systematically assessed and validated preferences for staff in adults with developmental disabilities. Three adults with developmental disabilities (aged 32 to 43 years) identified preferred and nonpreferred staff using verbal and pictorial preference assessments. During break-point analyses with progressive-ratio schedules, all 3 had higher break points when working for positive social interaction with their preferred staff mamber than with their nonpreferred staff member.
Related Concept Videos
Reinforcement Schedules
Once a behavior is learned,...
Primary and Secondary Reinforcers
Effective reinforcers for humans vary depending on the individual and the context. Primary reinforcers, such as food, water, sleep, shelter, and pleasure, have inherent value and satisfy basic biological...
Operant Conditioning Intervention
In operant conditioning, behaviors that are...
Reinforcement
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:

