Sniffy: Reinforcement and St. Francis Xavier

Slater describes how Skinner expanded on Pavlov’s findings about classical conditioning, which showed how a reflex could be conditioned to happen in response to a different stimulus (Slater 10). Skinner felt that it wasn’t just reflexes that could be conditioned but other behaviors as well. He studied animal’s behaviors after they were given a reward or consequence. His famous box studies involved him training rats to be rewarded with food in fixed-ratio schedules,

Once it was knocked a pellets immediately came into the box. Each time the rats would knock the lever pellets would come down. The rats learned quickly. After Skinner learned that the rats could be trained using operant conditioning, he decided to further his experiment.

Burrhus Frederic (B. F.) Skinner, an American behavioral psychologist who believed the idea that human free will was an illusion and any human action was the result of the consequences of that same action, developed an experiment to verify if superstition was present in pigeons. Skinner’s beliefs led him to conduct this research experiment which ultimately declared him as one of the top psychologists of his era. Skinner believed that the best way to understand behavior was to look at the causes of an action and its consequences. He called this approach operant conditioning.

B.F Skinner was an American Psychologist who invented the operant conditioning chamber. The chamber he set up had rats in it and a lever, once the rats pulled the lever they were given a piece of food. After this happened the rate of bar pressing would increase dramatically and remain high until the rat was no longer hungry. He was a firm believer of the idea that human free will was actually an illusion and any human

Thereby, Skinner produced experiments whereby rats would navigate through mazes to achieve the goal of a box containing food. His interest was the behaviour of the rat, taking the right turn to achieve the desired result, food. To begin with the rats would take the wrong turn but with experience, they became more skilful. The rats learning behaviour was measured in two ways, firstly the length of time it took from start to end and secondly, the reduction in errors. This was a lengthy experiment which led Skinner to produce ‘the Skinner box’. Whereby, rats learnt to press a lever and pigeons learnt to peck a key in order to attain food, also known as behaviour shaping. This experiment lacks ecological validity as the animals are kept in a controlled environment which is dissimilar to their natural habitat. However, the results which were attained could not have been possible in natural circumstances. Skinner wanted to observe if behaviour could be learned through reaching a desired outcome such as positive reinforcement which needed to be

Reinforcement is the main contributing factor in operant conditioning. There is more than one way to go about establishing reinforcement, if a delay occurs between the response and the reinforcement the response may not become strengthened. It is likely that if the reinforcement occurs immediately after the response that there will be a definite strengthening of the response. Continuous reinforcement is when reinforcement occurs at every instance of the desired response. Intermittent reinforcement occurs when a response is reinforced some of the time. The different schedules of reinforcement influence patterns of response. Intermittent schedules offer greater resistance to extinction than continuous schedules.

METHOD: In order to perform this experiment, the standby switch of the skinner box is switched to STBY (standby), in order to prevent the rat from starting the experiment before the experimenter. Then, the power switch is turned to the ON position, so the apparatus can be tested, and made sure it is functional. After, the Mode Switch is turned to Discrimination (DISC). Later, the Stimulus Intensity is set to 10. Next, the Response and Reinforcement counters are reseted to ZERO. Then, the room light is turned off, and the desk lamp is switched to the ON position. After, the rat is removed from the home cage, is gently placed inside the Operant Chamber, and the lid is safely secured. Later, the STBY switch is placed in the RUN position. For instance, during the experiment, the light will be on stimulus # 10, and the S⁺/Sˆ will be light off. Depressing

A researcher named Burrhus Frederic Skinner thought he would develop the idea of operant conditioning. He suggested than we act in regard to consequences (reward or punishment) in which we actively learn. He suggested there are 3 types of these consequences of behavior; positive reinforcement, negative reinforcement and punishment. Positive reinforcement is receiving a reward for acting in a certain way. An example of this could be getting a school prize for performing well in your exams, because of the reinforcement of the prize, the student will try to perform well every time. Negative reinforcement occurs when we act in a way that avoids an unpleasant consequence (e.g. not being late to a meeting because you do not want to be perceived as rude). Punishment is an unpleasant consequence that comes from the way we act. For example, gaining a detention for arriving late to lessons. Punishment decreases like probability that behaviour is likely to be repeated. Whereas, in positive and negative reinforcement the chances are you will repeat the behaviour. Skinner’s conducted research in the form of a lab experiment. He used a hungry rat that was placed in a cage that had been especially developed for the purpose of the study and was named Skinner’s box. In the cage was a button and a food dispenser. When the rat pressed the button food would appear in the dispenser. The animal soon learned that

Skinner (1948) was also influenced by Thorndike’s (1898) operant conditioning of cats and went on to use similar techniques to study conditioning in rats. Skinner studied how behaviour that is rewarded will be repeated, unlike behaviour that has a negative consequence. Skinner (1948) placed hungry rats in a ‘skinner box’ with a lever, when the lever was pressed, food was released and the rats soon learned that when they pressed the lever they would be rewarded. Skinner (1948) then placed rats in another box and administered them with an electric current. If the rats pressed the lever in this box it would stop the discomfort of the current. After repeating the rats quickly learnt to press the lever. Skinner (1948) argued that all human behaviour can be learned through operant conditioning (McLeod 2015).

We started this experiment by conducting magazine training with Sniffy. The Magazine training technique was used in order for Sniffy to make the association between the sound of the food hopper with food. Every time Sniffy approached the food hopper a food pallet would be delivered through the pressing of the space bar. We waited until the Sound-Food bar association on the Operant Associations mind window reached 3/4’s of the way. This meant that the association between sound and food was strong enough to begin helping shape Sniffy’s behavior. This file was saved to be used later in the training of Sniffy to press the bar himself.

Behaviorism is a theory that human or animal psychology can be studied through examination of observable behavioral events. Behavior is a subject matter in its own right; it is also the functioning of an organism that entails communication or exchanges with its environmental settings (Moore, 2011). it is also the functioning of an organism. One way Skinner influenced the field of psychology was by building a conditioning chamber or known to society today as the Skinner Box. A rat was placed into the Skinner Box which had a lever and a food tray. If the rat were to hit the lever, food would drop out onto the tray. After the rat hit the bar on accident and a food pellet would drop, Skinner observed that the rate the bar was hit increased and remained high until the rat was no longer hungry (Schacter, Gilbert, Wegner, Nock, 2014, 18-19). Skinner assumed that the best way to understand behavior is to look at the reasons of an action and its result. He called this method operant conditioning which expanded the field of psychology. Operant conditioning is changing the behavior of an organism or being by reinforcement (Mcleod,

The experiment lasted 15 consecutive days. During the experiment, the rats were placed into 12 identical operative chambers which was used for all behavioral training and testing. Each chamber had an automatic retractable lever

Skinner conducted a series of research experiments with rats and pigeons under controlled laboratory conditions using a specially designed cage. By doing so he sought to demonstrate that behaviour can be created and reinforced by external factors. The puzzle box he created for his experiments has become so widely used that it is now known as the “Skinner box”. Animals would be placed in a cage which had a bar lever mechanism used to dispense food; Skinner would measure the frequency of the bar pressing and introduce different variables into the experiments. This led to his discovery of 'partial reinforcement' and its correlation to the slower extinction of shaped behaviour. When food pellets would only be dispensed once in a while (as opposed to every pressing) Skinner noticed that it took longer for the learnt behaviour to become extinct. The powerful phenomenon of partial reinforcement can be noticed in gambling establishments; a player on a slot machine is more likely to keep up their behaviour of playing if the rewards are unpredictable and occasional. The player becomes more persistent in their gambling in the hope that the next coin will be the winner (Hunt, 1993).

According to Gewirtz and Peláez-Nogueras (1992), “B. F. Skinner contributed a great deal to advancing an understanding of basic psychological processes and to the applications of science-based interventions to problems of individual and social importance.” He contributed to “human and nonhuman behavior, including human behavioral development, and to various segments of the life span, including human infancy” (p. 1411). One of Skinner's greatest scientific discoveries was “single reinforcement” which became sufficient for “operant conditioning, the role of extinction in the discovery of intermittent schedules, the development of the method of shaping by successive approximation, and Skinner's break with and rejection of stimulus-response

the “Skinner box”. He found that he was able to train rats to press a