Proprioceptive Discrimination of a Covert Operant without Its Observation by the Subject
- 1 March 1963
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 139 (3557) , 834-835
- https://doi.org/10.1126/science.139.3557.834
Abstract
When the subject occasionally emitted an invisibly small thumb twitch (detected electromyographically), he received a tone as a signal to press a key. After several conditioning sessions, the tone was progressively diminished to zero. The subject nevertheless continued to press the key whenever he emitted a thumb twitch, and he reported that he still heard the tone.Keywords
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