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Which Hand is More Sensitive TO Cold?

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by

Isis Joseph

on 10 January 2014

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Transcript of Which Hand is More Sensitive TO Cold?

Research

Is a dominant hand more sensitive to cold than a non-dominant hand?

There are many differences that can be observed when studying a person’s dominant and non-dominant sides. For example, your dominant side tends to be stronger and more coordinated. This experiment will evaluate the hypothesis that the dominant side is also more sensitive. To do this, you will observe how well test subjects are able to manage discomfort when submerging their dominant and non-dominant hands in icy cold water.
Image by Tom Mooring
Procedure
Science Fair Prezi
Materials

1.Left-handed and right-handed adult test subjects
2. A bowl that is big enough to fully submerge both hands
3. Ice water
4. Stop watch
5. Notebook for recording results

Hypothesis
If your left hand is the dominant one then your left hand would be more sensitive because i think your dominant hand is most sensitive.
1. Fill the bowl with ice water.
2. Ask a test subject to place both hands in the bowl.
3.Instruct the test subject to keep his or her hands in the bowl as long as possible.
4. Tell the test subject to remove one or both hands when the discomfort becomes too much to bear. (Both hands can not be removed at the same time.)
5. Start your stopwatch.Record how long the subject is able to keep each hand in the bowl of ice water.
3.Record whether the test subject is right-handed or left-handed.
4.Repeat steps 2-5 for many different right-handed and left-handed test subjects.

Which Hand is More Sensitive TO Cold?
Data
subject 1- right dominant, right out first 00:03:00
subject 2- left dominant, left out first 00:00:30
subject 3- left dominant, left out first 00:01:36
subject 4- right dominant, right out first 00:02:54
subject 5- left dominant, left out first 00:02:12
Subject 1
Subject 1 was right hand dominant stayed in for 3 minutes and pulled the right hand out first.
Subject 2
Subject 2 was left hand dominant stayed in the ice for 1 minute and 37 seconds and pulled their left hand out first.
Subject 3
Subject 3 was left hand dominant stayed in the water for 1 minute and 56 seconds and pulled their left hand out first.
Subject 4
Subject 4 was right hand dominant stayed in the water for 2 minutes and 54 seconds and pulled out their right hand first.
Subject 5
Subject 5 was left hand dominant stayed in the water for 2 minutes and 12 seconds and pulled their hand out first.
Results
The right handed people had more sensitivity in their right hands, the left handed people in their left, but what I found was most interesting was that the left-handed people showed more sensitivity overall.
My project was to determine whether the sensitivity to cold of a hand has any relation to whether it is the dominant hand
Full transcript