Abstract
Ninety-six male albino rats were conditioned to leverpress for sucrose. The basic design of within-S groups was a 2 by 2 by 2 factorial, incorporating light-ON or light-OFF extinction conditions; CRF(ON)-PR(OFF) or PR(ON)-CRF(OFF) training schedules; and 1,600 or 3,200 total training trials. In addition, there was a 100% reinforcement condition constituting a 2 by 2 factorial of between-S groups incorporating light ON or light OFF, and 1,600 or 3,200 total training trials. Results showed that for within-S groups there were no differences in resistance to extinction and that for between-S groups there were no differences in resistance to extinction; however, all Ss which experienced PR training were significantly more resistant to extinction than Ss which experienced CRF training only. Results were discussed in terms of the response specificity of the PRE.
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This research was supported in part by a grant from the University Council on Research, LSU, to the first author.
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Young, A., Costelloe, C.A. Resistance to extinction as a function of partial reinforcement and external stimuli: A within- S design. Bull. Psychon. Soc. 3, 191–192 (1974). https://doi.org/10.3758/BF03333441
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DOI: https://doi.org/10.3758/BF03333441