Pigeons presented with sequences of false flashes use behavior to count but not to time
Autor: | Shelley Roberts, Karen A. Kit, William A. Roberts |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Journal of Experimental Psychology: Animal Behavior Processes. 28:137-150 |
ISSN: | 1939-2184 0097-7403 |
DOI: | 10.1037/0097-7403.28.2.137 |
Popis: | On randomly ordered trials, pigeons were presented with either a blue or a white key that flashed red for 200 ms at a fast (2 flashes/s), medium (1 flash/s), or slow (0.5 flashes/s) rate. The blue key signaled a fixed-interval (FI) schedule in which the first response after 20 s was reinforced, and the white key signaled a fixed-number (FN) schedule in which the first response after 20 flashes was reinforced. In Experiments 1 and 2, pigeons showed depressed responding to the flash on FI-cued trials and accelerated responding to the flash on FN-cued trials. When the response key was periodically blacked out in Experiments 3 and 4, counting but not timing was eliminated. |
Databáze: | OpenAIRE |
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