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In an investigation of the effects of caffeine on concentration,half the participants were given regular colas which contained caffeine and half were given decaffeinated colas.In this study,the decaffeinated colas are being used as
Electrical Impulses
Quick bursts of electricity generated by neurons to transmit signals within the body.
Deflections
Movements or shifts off a predetermined path or direction, often used in physical and engineering contexts.
SA Node
The sinoatrial node, a natural pacemaker of the heart that controls heartbeat rhythm.
Electrical Impulses
Quick bursts of electricity that are used by nerves to communicate within the body, especially in the nervous system.
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