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Questions tagged [serotonin]

For questions about the neurotransmitter serotonin's role in behavior and cognition.

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Why does venlafaxine have lower incidence of sexual dysfunctions at higher doses?

Venlafaxine at low dosages strongly inhibits serotonin, at moderate dosages also norepinephrine and only high dosages it also inhibits dopamine. The ratio is the following. serotonin : ...
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Since we know the 5ht2a receptor impacts learning efficiency why has stimulating it not been tried for alleviating learning disabilities?

If you go on wikipedia or do a search on Google you can quickly find a bunch of articles on the importance of serotonin for impacting the efficacy of learning. Experiments have been run in mice for ...
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Why might sleeping on the floor alleviate PTSD symptoms?

Question: Does sleeping on the floor have similar neurotransmitter effects, as sleeping under a weighted blanket might? Psychiatrically, would it be expected that a person having PTSD would find ...
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Lowering people's serotonin levels does not change their mood?

I'm starting to pick off sub-topics from this omnibus question, which I think it's too broad to answer properly/directly in the SE format. So, let's start with one of the claims there: Lowering ...
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Relation of serotonin level and mood/depression

Not a biologist. Not even related to science, however I read a lot of popular psychology stuff, plus read some info about antidepressants and a question tortures me :) Antidepressants arise amount of ...
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are serotonin levels higher or lower in dominant vs. non-dominant primates and humans?

On page 242 of The Moral Animal, Robert Wright states that In vervet monkey societies, dominant males have more of the neurotransmitter serotonin than do their subordinates. And one study found ...
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What causes passion, psychologically and chemically, and how does it last? [closed]

I recently finished reading "Habits of a happy brain", which discusses the role of oxytocin, serotonin, endorphin, dopamine, and cortisol in seeking behavior. The book argues that we evolved to ...
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Is there any evidence that better sleep reduces the symptoms of chronic severe Fibromyalgia?

Is there any evidence that better sleep reduces the symptoms of chronic severe Fibromyalgia? Severe fibromyalgia has been linked to the possible depletion of serotonin through prolonged and ...
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Can Prozac cause anxiety?

I know some selective serotonin inhibitors, such as Prozac, are prescribed for anxiety, but can they also cause anxiety?
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Can the effectiveness of antidepressants be explained by a placebo effect?

A friend of mine showed me a paper (Kirsch, 2014) where the author claims that antidepressants work mostly through a placebo effect (backed up with relevant citations). Antidepressants are generally ...
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Epigenetics and serotonin (amygdala threat response)?

In this article it states that: Increased promoter methylation of the serotonin transporter gene predicted increased threat related amygdala activity. I'm finding this somewhat difficult to ...
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Are there any ways to increase dopamine and serotonin levels when working or learning something complex?

There is much information regarding learning styles and ways to leverage them, along with boosting focus, alertness and concentration. However, I'm looking for accompanying information that would be ...
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Is movement/activity level related to serotonin availability or reuptake rates in the brain?

I'm aware of this research article that explores the relationship between motion and serotonin systems: 5-HT and motor control: a hypothesis. Based on the article above, it seems to me that a "very ...