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Author Topic: How do hormones influence nerve signalling and neurotransmission?  (Read 1306 times)

Offline theCoolScientist

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Brains communicate via electric signals,how do chemicals called hormones affect the flow of this electricity, or rather how do hormones control flow of thoughts?
« Last Edit: 02/02/2014 22:35:56 by chris »


 

Offline chiralSPO

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Re: the brain
« Reply #1 on: 01/02/2014 03:44:36 »
hormones interact with the electrical signals in the brain only through very complex and indirect ways. Neurotransmitters are signalling chemicals that have a somewhat more direct way of interacting with the electrical signals.

For instance, the electric charge in neurons is determined by the ratio of various ions inside them. These ions are moved through ion channels (passively or are actively pumped). Neurotransmitters (and other molecules, like many drugs) can interact with these pumps and channels, allowing (or disallowing or forcing) the ions through. This has a direct impact on the charge of the neuron.

We are still figuring out how this actually relates to how thoughts work, but I suspect we will have a much better understanding of this in the coming decades.
 

Offline theCoolScientist

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Re: the brain
« Reply #2 on: 01/02/2014 14:12:07 »
Thnx man nyc answer
 

Offline evan_au

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Adrenaline/Epinephrine is both a hormone and a neurotransmitter.

When we get a fright, the fight/flight response makes us more alert, speeds up our breathing, and redirects blood supply. Even in situations like exams. where there is no physical threat, a small amount of adrenaline helps us concentrate better; too much, and we can't concentrate on complex intellectual tasks!

 

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