Two-Point Discrimination Test: Determining the Two-Point Threshold

770 WordsOct 29, 20134 Pages
Two-Point Discrimination Test: Determining the Two-Point Threshold ABSTRACT The two-point discrimination test of the skin is a simple test of the sensory nerve function. Two-point discrimination measures the individual’s capability to distinguish two points of stimuli presented at the same time. The importance of this study is the ability to tell of two points verses than one that pressing on the skin depends on two things: the concentration of the sensory receptors and the connections that the sensory nerve cells make in the brain. An esthesiometer or caliper; compass-type instrument was used to determine limits of two-point discrimination sensitivity in several skin areas on the subject's forearm, thumb and index finger. The…show more content…
Introduction The procedure of the project is to determine the ability to differentiate the touch of the calipers or an esthesiometer and a metric ruler. The project is to determine the two-point threshold which is the measurement, the smallest distance at which two points of contact can be felt. If we can feel the sensation of both picks from a short distance to a wider distance. To know when we can feel both and without looking. Turning away and getting poked when to say when you feel one touch or two touches. The areas that we did to do the test was the forearm which has thin skin, thumb and the index which has thick skin. The ability to distinguish the two points from one area to another area of your body. The ability to determine which portion of the skin has been touched is called tactile localization. The receptors must be densely packed in a sensitive area, so that two points very close together activate different receptors. The data shows that there are certain areas that are sensitive or not so highly sensitive at all. Just depending on the testing area you could feel both or one touch of the calipers. To determine how many touches and the distance of the time of the lab. The issues that the lab was not described well. The results are skewed do to incorrect instructions that were given. Some of others colleagues had different results and maybe also had to do to the color off our skin. Directions should be given well and should be
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