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June 23, 2012

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Welcome Summer 2012 students!

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Operant Conditioning in Disney Movies

I always liked Disney movies and I have never noticed that they used operant conditioning. In the video they use positive reinforcement, negative reinforcement, positive punishment, and negative punishment. The movies that they talk about are Toy Story, Cinderella, Inside Out, and Lion King. This video made me think about other movies that use operant conditioning, and when I watch another movie I will try to notice these little things. Cinderella uses positive reinforcement by if Cinderella does her chores she gets to go to the ball. Toy Story uses negative reinforcement by how Woody removes Buzz so that Andy will continue his behavior in choosing Woody to play with. Lion King uses positive punishment by when Rafiki hits Simba on the head from stopping Simba from thinking about the past. Inside Out uses negative punishment by Riley's dad taking away dessert to stop her from crying about eating broccoli. This video made me understand reinforcement and punishment better and the di

Learning to Love the Foods We Hate

The biology of learning is quite fascinating, for it displays how our biological make-up is constantly learning, just like us! That may have seen like a really broad explanation, but let me go further. First, a basic need that all living organisms share is the need to eat (hunger). If food is presented in front of us, we are more than likely going to eat it, especially if it is something that is of particular interest to us. However, if someone were to place something in front of you that has previously made you sick (food poisoning, too many shots one night, etc.), you probably would not eat/drink that particular substance. This phenomena is called taste aversion . The components of taste aversion arise from classical conditioning, because a once unconditioned stimulus becomes conditioned to make you sick or un-pleasurable. Is there a way to eat something that we don't like? Of course! By combining the food that was once aversive with a pleasurable food, the once aversive fo

Activity Anorexia

Activity Anorexia is known as an abnormally high level of activity accompanied by a low level of food intake that is generated by an exposure to a time restricted schedule of feeding. In order to create the conditions to produce activity anorexia in rats you must follow a very detailed and specific set of rules. Test subjects (rats) are exposed to food once a day for an hour and a half, during the other hours of the day the rat will have access to a running wheel. If done properly, the test subjects will then start to spend more and more amounts of time running during the time period where they do not have access to food. It is also found with activity anorexia in rats that the more they run on their wheel, the less food they will eat. If given about a week, the test subjects will be running very long distances, close to about 20,000 revolutions of the running wheel daily, which equates to about twelve miles a day, along with eating next to nothing. If the process is continued on, the

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