. Behavior of pigeons under free-operant schedules of shock avoidance and shock frequency reduction. Pigeons; Laboratory animals. 49. .5 - .1 - y^ •V .', / \^^\' '^^^y^^^r 80 90 100 SESSIONS no 120 Fig. 6. Mean response and shock rates for the last 85 min of each 100 niin session. Consecutive daily sessions are connected by a 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, bookleafnumber62, booksponso, booksubjectpigeons