Adaptation: Pick Three Out of Four Sensory Experiments

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  • Topic: Sense, Sensory system, Perception
  • Pages : 2 (831 words )
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  • Published : May 5, 2007
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This assignment called for me to pick three out of four sensory experiments to conduct and then record my reaction to each experiment. The three experiments I chose to conduct are number one- the sandpaper experiment, number three- the index cards and flashlight experiment and number four- the water in bowls experiment. While conducting each of these three experiments I was surprised by the results of each of them. Experiment Number One: I rubbed my finger on the piece of coarse sandpaper and it felt very hard to my finger. After the two minute wait, I rubbed the same finger over the sand paper and found it to be softer than it felt the first time I ran my finger over it. The coarseness of the paper felt completely different the second time I ran my finger over it. I believe this is due to fact that I did rub the sandpaper with the same finger which was already desensitized by the first time I rubbed it on the sandpaper. This experiment is a sensory adaptation of touch in which our senses adjust to the level of stimulation we receive. This experiment shows that our senses can be as sensitive as they can be without being over loaded, which is why the second time my finger was rubber over the sandpaper it was less sensitive. Experiment Number Three: I took the fifteen index cards and my flashlight into a dark room and placed all fifteen cards over the end of the flashlight as soon as I got into the room. At first I could not see any light so I started taking index cards off the end of the flashlight one at a time. When I got down to the fourth card I could see a little spot of light through the index cards. I waited a few minutes and the light was brighter through the cards so I started adding cards back in front of the flashlight every few minutes for the next fifteen minutes. As my eyes adapted to the darkness I could continue to see the light through the cards. When I first went into the dark room from a bright room I was barely able to detect the...
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