Abstract
Forty male white rats received 19 sessions of bar press training with sucrose (16% or 4%) as reward followed by a shift from 4% to 16% and from 16% to 4%. Three dependent measures indicated positive and negative contrast effects. In Experiment II, 70 male white rats received 14 sessions of bar press training with (1.2%, 1%, .10%, or .01%) saccharine, and water followed by a shift from 1.2% to .10%, 1.2% to .01%, 1 to .1%, and .10% to .01%. Three of the four measures indicated negative contrast effects. In Experiment III, 40 male white rats experienced 16 sessions of bar press training with 1%, .10%, .05%, or .01% of saccharine followed by an increase from .1%, to 1%, .05% to 1%, and .01% to 1%. Three of the measures indicated positive contrast effects. Confounding inherent in the use of solid food or sucrose did not appear to account for negative and positive incentive contrast effects.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
