Reaction time is a measure of how long it takes an organism to react to a stimulus. This uses your nervous system which is a system of receptors and neurones that send electrical impulses to and from your Central Nervous System.
⏱️TIMESTAMPS:
0:00 – Start
0:35 – How does the nervous system work?
1:30 – What are stimuli?
1:40 – What are receptors?
2:00 – What is the central nervous system?
2:17 – What are sensory neurones?
2:23 – What are nerves?
2:54 – What are motor neurones?
3:08 – What are effectors?
3:36 – Summary notes 1
3:39 – What are reflexes?
4:06 – What is a reflex arc?
4:57 – What is a synapse?
5:27 – What are relay neurones?
5:52 – Summary notes 2
5:56 – Reaction time required practical
6:05 – What is reaction time?
8:35 – How does caffeine affect reaction time?
9:35 – Improvements to the reaction time practical
10:03 – Explaining anomalous results in the reaction time experiment
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