Blog Post- Shaping

One of the many topics we learned in this unit is the concept of shaping. This concept can be seen in many people’s everyday lives with the example of training a pet. Shaping is the practice that reinforces guide behaviors closer towards a desired behavior. An example of this is training your dog to roll over and then rewarding them when they do the behavior.

I trained my dog to roll over through shaping. His favorite treats are bacon strips. So when I called him over I would bring the bag of bacon strips over so he could smell it. I would then have him lay down and I would hold a treat and tell him to roll over. It was very difficult to start because he did not know what I wanted. I had to physically roll him over then I would give him the treat. I worked on this with him once a day for a bout a week and we were slowly making process. It was almost two weeks when he finally listened and completed the task. I rewarded him with the treat after he did it by himself. He learned this and got better at it, the more we did it. My dog, Cornelius, was finally able to roll over on his own, as well as expecting a treat after he did it.

I did not know this at the time, but this was the shaping concept where I reward my dog for doing an action. This technique was the easiest one I found and also the fastest. This experiment was a success and the process was fun and this lesson in class helped me understand the process that I made my dog go through. I enjoyed learning this process and I want to teach my friends’ dogs to roll over, now that I know how to do it!

Motion Parallax

When learning lecture eight and the different types of perceptual organizations, one of the monocular cues that stood out to me was the concept of motion parallax. This concept is when objects that are far away seem to move much slower than the objects closer to your eyes. The example we learned in class is when you are taking the train and the trees close to the tracks and window move very fast, whereas the horizon and other distant objects seem to be passing by very slowly. This sparked my thoughts and confusion when I am traveling in an airplane. I have taken airplanes a fair amount of times and this concept has always been so confusing until we had this lesson and learned about motion parallax. The clouds and air right outside the window seemed to pass by in a matter of seconds. While on the other hand, when I looked down, it seems to take a city or part of the ocean a few minutes to completely pass below the plane. I always wondered how this could be possible since planes travel at such high speeds, for long periods of time. However, the motion parallax concept has made it easier to understand this idea. Because the plane is so high up and far away from the land, it seems to take so much longer for the land to pass, other than the objects that I can see much better up close in the window. Because of the greater distance between my eyes and the ground, it takes longer for those objects to pass. This cue, along with the others, is very interesting and explained even the simplest of ideas. The motion parallax concept specifically helped me understand why it took forever to see a city, town, or ocean below pass when traveling in an airplane.

Applying Sensory Adaption

Throughout the class discussions of the brain, we have discussed many different topics involving the senses the their perception. One example of how our brain interprets our senses is through sensory adaption. All five of our senses are constantly receiving a response from a stimuli. However, sometimes the receptors receive a prolonged and persistent stimuli. This results in diminished sensitivity and the receptors then block out the stimulus. One simple example of this would be putting a bandaid on a cut or scrap. At first, you can feel the bandaid as it pulls on the hairs of your skin, making you constantly aware of the bandaid sticking to you. Over time, you adapt to the feeling of the bandaid on your skin and you forget that it is even there. Another example of sensory adaption is taken from a personal experience. When I was in seventh grade, I broke my wrist. After I went to the doctor, I found out that I needed to get a cast and wear it for a certain amount of time until my wrist was completely healed. The first couple days and weeks with the cast, was so uncomfortable and felt so different. However, as time went on living with the cast, I did not even know the difference of not having it on my arm. When it was time to get the cast off, it felt so weird, yet again, having a drastic change to my arm. But yet again, sensory adaption took place and I was used to not having the cast on anymore. In conclusion, getting the cast on and then off again are both examples of sensory adaption. This is because the body sensed a stimulus, but then quickly became used to the sensation and reduced the sensitivity due to the prolonged state of the stimulus.