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Nu-Way Snaps and Snap Leads: an Important Connection in the History of Behavior Analysis
Authors:Rogelio Escobar  Kennon A. Lattal
Affiliation:Faculty of Psychology, National Autonomous University of Mexico, Av. Universidad 3004, Col. Copilco-Universidad, Del. Coyoacán, C.P. 04510 México, D.F. México ;Department of Psychology, West Virginia University, Morgantown, WV 26506 USA
Abstract:Beginning in the early 1950s, the snap lead became an integral and ubiquitous component of the programming of electromechanical modules used in behavioral experiments. It was composed of a Nu-Way snap connector on either end of a colored electrical wire. Snap leads were used to connect the modules to one another, thereby creating the programs that controlled contingencies, arranged reinforcers, and recorded behavior in laboratory experiments. These snap leads populated operant conditioning laboratories from their inception until the turn of the twenty-first century. They allowed quick and flexible programming because of the ease with which they could be connected, stacked, and removed. Thus, the snap lead was integral to the research activity that constituted the experimental analysis of behavior for more than five decades. This review traces the history of the snap lead from the origins of the snap connector in Birmingham, England, in the late eighteenth century, through the use of snaps connected to wires during the Second World War, to its adoption in operant laboratories, and finally to its demise in the digital age.
Keywords:Nu-Way snap   Snap lead   Newey Brothers   Snap fastener   Snap connector   Relay rack   Electromechanical modules
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