Concept of adaptation.
Concept of adaptation: In the experiment involving sandpaper, I rubbed the index finger on the sand paper many times and rated the coarseness as directed. After resting for two minutes, I rubbed the index finger for the second time on the same sandpaper.
After conducting the experiment for the first time, the sand paper felt very rough. The rating was at six. The second time, the sandpaper was not as course as compared to the first time, the rating was at three.
The experiment involving sugar concentration followed next. I began by sipping the sugar water and swishing it in the mouth for some time before disposing it. The taste of the sugar water was less sweet as I continued swishing it in the mouth. Immediately after disposing it, I tasted fresh water that tasted salty.
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In the second experiment, the taste of the sugar water was less sweet as I continued swishing it in the mouth. The taste receptor was adapting to the new stimuli. The fresh water had greater effect on the taste receptors than the sugar water thus it tasted salty.
The receptors sent consistent and frequent neutral signals to the brain after tasting the fresh water since the stimuli had changed rapidly. The reversed sensation in the third experiment is an evidence of sensory adaptation.
The temperature felt as if it was reversed such that the left hand was dipped in cold water and the right in hot water. When I dipped the hands in the third bowl, the receptors immediately sent frequent neutral signals to the brain due to the change of stimuli.
Franzoi, S. L. (2010). Psychology: A Discovery Experience. Connecticut: Cengage Learning .
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