信号キイ手続きにおける切り換え反応による強化の保留の効果

概要

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The effects of change-over-delay (COD) in discrimination training using the signal-key procedure were investigated in the pigeon. In Experiment I, generalization gradients along the line-tilt dimension following the signal-key procedure with and without COD 2s were studied. Regardless of the application of COD, following results were obtained: (1) Relative generalization gradients were similar. (2) No behavioral contrast was observed on the operant-key. (3) Some responding to the signal-key occurred during the VI component of the multiple VI EXT schedule. The responses on the signal-key decreased slightly with COD 2s. These data suggest that the responses on the signal-key were maintained partly by response-reinforces contingency. In Experiment II, local contrast in the signal-key procedure was investigated. Response distribution within 30s period of stimulus presentation revealed that COD produced decreased number of responses to the signal-key after 1.5s of stimulus onset. These suggest that the stimulusreinforcer contingency is responsible primarily for the local contrast.
公益社団法人日本心理学会の論文