Question about the specific effects of SSRIs

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SSRIs, such as sertraline hydrochloride, inhibit the reuptake of serotonin, leading to prolonged activation of postsynaptic receptors. This mechanism can potentially enhance signal processing speed, as noted by individuals experiencing faster reaction times. However, studies indicate that while SSRIs may improve problem-solving abilities, they can impair the application of learned skills to new situations. At optimal dosages, serotonin signaling may be slightly accelerated, but excessive use can cause fluctuations in serotonin levels, resulting in receptor downregulation and slower signal processing. Additionally, there is a risk of overdose and serotonin syndrome with SSRIs, highlighting the importance of proper dosage management.
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I know that SSRIs inhibit the reuptake of serotonin from synapses, and therefore cause the receptors on the postsynaptic neuron to be activated for a longer period of time. Does this have any effect on the signal sent? (for example, does it make it so the signal takes longer to process?, etc)
 
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Not exactly addressing your question, but is related.

I know two people that say their reaction time is speeded up when taking sertraline hydrochloride. For instance when they fumble a piece of paper they recapture it much more frequently than expected; say fumbled from chest height and re-captured about at the waist.

I recently read a study (don't have a link for it but am pretty sure it was in the journal "Science".) that concluded SSRI's largely recovered the ability to solve problems, but inhibited the ability to apply that learning to other similiar, but different, problems. Most strange.
 
Yes, at the right dose, the signalling will be slightly faster than normal. However, if too much is taken over time, serotonin levels can fluctuate dramatically, which leads to downregulation of serotonin receptors (damage); in that case, it will probably take the signals longer to process. It is possible to overdose on this class of drugs and develop serotonin syndrome.
 
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https://www.discovermagazine.com/the-deadliest-spider-in-the-world-ends-lives-in-hours-but-its-venom-may-inspire-medical-miracles-48107 https://en.wikipedia.org/wiki/Versutoxin#Mechanism_behind_Neurotoxic_Properties https://www.sciencedirect.com/science/article/abs/pii/S0028390817301557 (subscription or purchase requred) The structure of versutoxin (δ-atracotoxin-Hv1) provides insights into the binding of site 3 neurotoxins to the voltage-gated sodium channel...
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