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An Experimental Analysis Of The Stimulus-Reinforcer Relations In Matching-To-Sample, Roger C. Lubeck
An Experimental Analysis Of The Stimulus-Reinforcer Relations In Matching-To-Sample, Roger C. Lubeck
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study investigated the stimulus-reinforcer relations possible in matching-to-sample, and determined the extent that each relation contributed in the transfer to subsequent matching-to-sample. Fifty three homing pigeons were autoshaped on a single key, with two stimuli, red and green. Forty eight subjects were then divided equally in 12 groups receiving the experimental treatments, and five subjects served as no-treatment controls. Group assignments were first based on autoshaping to either an identity, non-identity, or identity and non-identity stimulus relation. Each stimulus relation consisted of a center stimulus followed by an outer key stimulus. For identity, the center and outer stimuli were …
Effects Of Intermittent Reinforcement Upon Fixed-Ratio Discrimination, Tore Lydersen
Effects Of Intermittent Reinforcement Upon Fixed-Ratio Discrimination, Tore Lydersen
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Four pigeons had discrimination training that required the choice of a left side-key following completion of a fixed-ratio 10 an the center key, and a right side-key response after fixed-ratio 20. Correct choices were reinforced on various fixed-interval, fixed-ratio, random-interval, and random-ratio schedules. When accuracy was examined across quarters of intervals (fixed-interval schedules) or quarters of median interreinforcerrent intervals (fixed-ratio schedules), accuracy was usually laver in the second quarter than in the first, third, or fourth quarters. When accuracy was examined across quarters of ratios (fixed-ratio schedules) or quarters of median number of correct interreinforcement trials (fixed-interval schedules), accuracy increased …