. Behavior of pigeons under free-operant schedules of shock avoidance and shock frequency reduction. Pigeons; Laboratory animals. 58 PIGEm N. 2 min Fig. 11. Cumulative record of the entire 100 min session indicated for Pigeon N. Recording conventions are as in Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jowaisas, Dennis Brian, 1939-.

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Keywords: ., bookcentury1900, booksponsoruniversityofflor, booksubjectpigeons