dopamine

noun
do·pa·mine | \ˈdō-pə-ˌmēn \

Definition of dopamine 

: a monoamine C8H11NO2 that is a decarboxylated form of dopa and that occurs especially as a neurotransmitter in the brain

Examples of dopamine in a Sentence

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This temporary and localized fuel shortage triggers a rise in adenosine levels, which in turn blocks the release of neurotransmitters like dopamine. Alex Hutchinson, Outside Online, "Here’s What We Know About Mental Fatigue," 10 July 2018 All Parkinson’s disease drugs used today work by increasing dopamine signaling in the brain. Denise Gellene, BostonGlobe.com, "Arvid Carlsson, 95; discovered a treatment for Parkinson’s," 2 July 2018 All Parkinson’s disease drugs used today work by increasing dopamine signaling in the brain. Denise Gellene, New York Times, "Arvid Carlsson, Who Discovered a Treatment for Parkinson’s, Dies at 95," 1 July 2018 The movement disorder happens when brain cells can’t produce enough dopamine. Erin Blakemore, Washington Post, "Virtual library provides information about Parkinson’s disease," 2 Apr. 2018 The review found that individuals who happen to have higher levels of dopamine also score more highly on measures of sensation seeking behaviour. Richard Stephens, Smithsonian, "The History and Psychology of Roller Coasters," 12 July 2018 As the neural cells released more dopamine, the rate at which other cells absorbed glucose from the rodents’ blood picked up. Emily Underwood, Science | AAAS, "Could deep brain stimulation help zap diabetes?," 23 May 2018 While this is a correlation rather than a causation, another study found that taking a substance called haloperidol, which disrupts dopamine’s effects within the brain, led to a measurable decrease in sensation seeking behaviour. Richard Stephens, Smithsonian, "The History and Psychology of Roller Coasters," 12 July 2018 In a nutshell, more dopamine leads to better memory performance. Sarah Bahr, Indianapolis Star, "Playing video games could help fight Alzheimer’s, Down syndrome," 1 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dopamine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of dopamine

1959, in the meaning defined above

History and Etymology for dopamine

dopa + amine

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Dictionary Entries near dopamine

DOP

dop

dopa

dopamine

dopaminergic

dopant

do-pas-so

Statistics for dopamine

Last Updated

2 Sep 2018

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Time Traveler for dopamine

The first known use of dopamine was in 1959

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More Definitions for dopamine

dopamine

noun
do·pa·mine | \ˈdō-pə-ˌmēn \

Medical Definition of dopamine 

: a monoamine C8H11NO2 that is a decarboxylated form of dopa and occurs especially as a neurotransmitter in the brain and as an intermediate in the biosynthesis of epinephrine — see intropin

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exaggeratedly or childishly emotional

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