Reaction Experiment On Reaction Time Experiment

2189 Words Aug 3rd, 2014 9 Pages
Science Assignment
Title:
Reaction Time Experiment
Aim:
To find out what happens to a subject’s reaction time when different independent variables are applied.
Introduction:
Reaction time is the time between the presentation of a stimulus and the initiation of the muscular response to that stimulus ( the free dictionary [26/07/14].The purpose of this test was to identify what happens to reaction times as different independent variables are applied. The nervous system helps all parts of the body to communicate with each other, it is responsible for making sure all of the body’s parts coordinate properly. The nervous system is the centre of all the body’s activity (better health channel [26/07/14]). The brain and spinal cord make up the central nervous system and all the other nerves in the body part of the peripheral nervous system. Inside nerves lie neurons, neurons are found in the brain, spinal cord and the peripheral nerves (PubMed Health [26/07/14]). They are also known as nerve cells. These neurons have the same structure as plant and animal cells (differencebetween.net [27/07/14]). Neurons are made up of a cell body, dendrites, a nucleus, an axon and a myelin sheath (the nervous system [27/07/14]). The myelin sheath surrounds the nerve fibre of axon and protects the body from the electrical charge that nerves have (GCSE Bite size [27/07/14]). There are two types of neurons: sensory neurons and motor neurons. Sensory neurons send signals to the brain and spinal…
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