Reaction Times

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Reaction Times Plan: - I am planning to investigate about the reaction times on the swiftness of the thumb, starting and stopping a stopwatch. The speed of my hand, catching a 1m ruler falling and a braking reaction. The purpose of this investigation is to test my reaction times during these three experiments and to determine if the reaction (response) is a reflex action or a conscious action. A Reflex action happens automatically. This type of response does not have to be learned - e.g. we blink when an object comes close to the eye unexpectedly, and the size of the pupil changes according to the amount of light entering it. The advantage of reflex actions is that they happen very fast. In a simple reflex action, the nerve impulses pass from a receptor along a sensory neurone to a relay or connecting neurone in the central nervous system (CNS) along a motor neurone to an effecter, such as a gland or a muscle. [IMAGE]Motor neurone. A Conscious action maybe voluntary or conscious, because the brain decides which response is the best. This type of response is learnt - e.g. how to ride a bike or play cricket or football. In a simple conscious action, the nerve impulses pass from a receptor along a sensory neurone to the spinal cord, here another sensory neurone carries the impulse to the brain, the brain decides and sends an impulse to the motor neurone in the spinal cord which causes an impulse to be sent out of the spinal cord by another motor neurone to an effecter, such as a muscle. This scientific knowledge should determine if the reactions are reflexes or conscious actions. There are three experiments each will be presented in 3 different tables, 3 times concentrating and 3 times distracted (i.e. saying the next number in the sequence) This will make 1 set of results with a average column. I will need to repeat each set at least three times (concentrating and distracted) in order for the results to be consistent, reliable and accurate.
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