Davis, 'PAVLOV'S BELL-LESS STATUS MAY STILL BE INTACT: Commentary on Thomas' "Pavlov Used A Bell"', Psycoloquy 941224 URL = http://hegel.lib.ncsu.edu/stacks/serials/psycoloquy/psycol-941224-davis-pavlovs psycoloquy.94.5.76.pavlov-bell.8.davis Sunday 25 December 1994 ISSN 1055-0143 (4 paragraphs, 3 references, 49 lines) PSYCOLOQUY is sponsored by the American Psychological Association (APA) Copyright 1994 Hank Davis PAVLOV'S BELL-LESS STATUS MAY STILL BE INTACT Commentary on Thomas' "Pavlov Used A Bell" Hank Davis Department of Psychology University of Guelph Ontario, Canada hdavis@uoguelph.ca ABSTRACT: The Pavlov experiment Thomas (1994) cites is operant rather than Pavlovian, hence Pavolv still never used a bell as a conditioned stimulus (CS) 1. I commend Thomas (1994) for his scholarship in ferreting out the litany of events surrounding Pavlov's mouse experiment (Pawlow 1923). I find two ironies in this report concerning the mythology surrounding Pavlov and his bell. 2. The bell in question does not conform to the popular image of a hand-held metal object that a school master might ring. This is an electric bell. 3. Regardless of its nature, the bell seems actually to have been more of a discriminative stimulus than a conventional conditioned stimulus (CS). Although there may well have been a salivary controlled response (CR) conditioned to the bell, it presumably went unmeasured. In its place, Pavlov reported the operant response of running to a desired location to receive a food reward. This fits the definition of a discriminated operant procedure. 4. The point of this procedural hair-splitting is that it allows us to assert that Pavlov never used a bell as a CS. REFERENCES Littman, R. (1994) Bekhterev and Watson Rang Pavlov's Bell: A Reply to Catania's Query. PSYCOLOQUY 5(49) pavlov-bell.1.littman. Pawlow, I.P. (1923). New researches on conditioned reflexes. Science, 58, 359-361. Thomas, R.K. (1994) Pavlov Used a Bell: Commentary on Littman on Pavlov-Bell. PSYCOLOQUY 5(63) pavlov-bell.2.thomas.