Reaction Time Lab Report

Reaction Time Lab Report - The Effect of Visual Acuity on...

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The Effect of Visual Acuity on Reaction Time ABSTRACT In this experiment, we investigated the correlation between visual acuity and reaction time. The method used was a reaction test through a computer program. The test required each of the 10 college freshmen to press the spacebar when they saw a black dot appear on a blue screen. The reaction time of students with perfect vision (average response time of .873 seconds) was much faster than the reaction time of the students without perfect vision (average response time of 1.46 seconds). This data supports the hypothesis that better vision makes for a faster reaction time. INTRODUCTION The purpose of this investigation is to carry out a simple reaction time experiment to determine if a person’s eyesight affects his or her reaction time. If a person has 20/20 or “perfect vision,” do they have a faster reaction time than those who don’t have perfect vision? Or is there no difference between the two? Reaction time is the time it takes to respond to some kind of stimulus. The stimulus can be something seen, heard, smelled, touched, or tasted. Reaction times surround us every second of the day, but are rarely measured (“About Reaction Time”). Reaction time ranges from the time it takes to remove your hand from a hot burner, to the times it takes to slam on the breaks when an animal runs across the road. Responses from a stimulus could not happen without the human nervous system. Neurons make up the nervous system of a human. A neuron is a cell with a dendrite and an axon branching off from the cell (“Neurons”). Messages are sent via neurons, which in turn carry the response from the stimulus. For instance, if a racecar driver sees the light turn green, the neurons will carry the message from the eyes to the brain, and then to the foot, which presses the gas pedal. Different parts of the body can be used as receptors for the stimulus.
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This note was uploaded on 03/10/2010 for the course BIOL 110 taught by Professor Kosinski during the Fall '06 term at Clemson.

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Reaction Time Lab Report - The Effect of Visual Acuity on...

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