Ask a Neuroscientist: Restless Legs Syndrome

Ask a Neuroscientist: Restless Legs Syndrome

Is restless leg syndrome a neurological disorder? What could be the root cause and is there any cure?

I fell deep into a rabbit hole of RLS and related research in writing this article. RLS is a neurological disorder, and we have some tantalizing clues about its cause--but there are far more questions than answers at this point. But two candidates are dopamine and iron. 

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Ask a Neuroscientist: Why is prayer so motivating? Is it because of dopamine?

Ask a Neuroscientist: Why is prayer so motivating? Is it because of dopamine?

Do some people experience a rush of dopamine when they pray or preach the gospel?

Becca Krock's fascinating answer evokes a wide range of subjects, from St. Teresa, "who certainly seems to have enjoyed praying", to the handful of studies that have measured brain activity during prayer, to the writings of William James, "the father of modern psychology".

In the end, she writes, it may be reasonable to conclude that "prayer is an intricate composite of many more run-of-the-mill psychological processes (attention, memory, emotion, speech). And each one...is accompanied by the neural correlates you’d expect to see during that process, regardless of whether it’s occurring in a religious or secular context."

Image source: continuedon.wordpress.com

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Ask a Neuroscientist: Can dopamine release become addicting?

Ask a Neuroscientist: Can dopamine release become addicting?

In this issue of Ask a Neuroscientist, Dr. Talia Lerner fields a question about the exact relationship between dopamine and addiction. Writing in response to a question from Peter Senavallis, Talia says: "the dopamine hypothesis of drug addiction ... has been a driving force in addiction research ever since people noticed that addictive drugs all seem to act in one way or another on dopamine regulation." However, she notes (and describes) recent research that "calls into question the idea that dopamine neuron stimulation would be sufficient to induce and sustain all the classic hallmarks of addiction, both behavioral and molecular. "

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Are you there, God? It’s me, dopamine neuron

Are you there, God? It’s me, dopamine neuron

Dopamine neurons are some of the most studied, most sensationalized neurons out there. Lately, though, they’ve been going through a bit of an identity crisis. What is a dopamine neuron? Some interesting recent twists in dopamine research have definitively debunked the myth that dopamine neurons are all of a kind – and you should question any study that treats them as such.

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