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Neurochemistry: Difference between revisions
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'''The word neurochemical is a | '''The word neurochemical is a combination of ''neuron,'' the electrical subunit of the brain and ''chemical'' which refers to specific interneuron messenger molecules.''' The reason the brain uses both chemical and electrical systems is that neurons are used for immediate messaging whereas the chemicals are used for message which require a longer duration of action. | ||
Electricity can only move at the speed of light and therefore is limited in its action as a messenger as it can only work instantaneously. An example of this is the knee jerk response a closed loop reflex, input results in instantaneous output. This is useful for immediate danger scenarios and became a prime fitness driver of evolution. However, there comes a point where there is an overload of information from neurons, hence the chemical side evolved enabling slower more prolonged responses. This in part is what enbaled the brain to create processing in higher cortex areas, giving a more delayed, more "''intelligent''" response. | Electricity can only move at the speed of light and therefore is limited in its action as a messenger as it can only work instantaneously. An example of this is the knee jerk response a closed loop reflex, input results in instantaneous output. This is useful for immediate danger scenarios and became a prime fitness driver of evolution. However, there comes a point where there is an overload of information from neurons, hence the chemical side evolved enabling slower more prolonged responses. This in part is what enbaled the brain to create processing in higher cortex areas, giving a more delayed, more "''intelligent''" response. | ||