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This profile was last updated on 10/16/13  and contains information from public web pages.

Dr. Molly J. Crockett

Wrong Dr. Molly J. Crockett?

Postdoctoral Researcher

Phone: +44 **** ******  HQ Phone
University of Cambridge
Bateman Street
Cambridge, Cambridgeshire CB2 1LR
United Kingdom

Company Description: The University of Cambridge is one of the oldest universities in the world, and one of the largest in the United Kingdom. It has a worldwide reputation for...   more

Employment History

Board Memberships and Affiliations

  • Sir Henry Wellcome Postdoctoral Fellow
    University College London
  • Lead Researcher and Wellcome Trust Research Fellow
    University College London
  • Member
    King's Voices
  • Scientific Advisory Boards Member
    Lifeboat Foundation
  • Member, Neuroscience Board
    Lifeboat Foundation


  • psychology
    University of California , Los Angeles
  • PhD , neuroscience
    University of Cambridge
  • PhD inneuroscience
    University of Cambridge
84 Total References
Web References
Serotonin, the nerve-signaling chemical ..., 1 June 2008 [cached]
Serotonin, the nerve-signaling chemical targeted by many antidepressants, appears to keep aggressive social responses in check, Molly Crockett, a psychologist at the University of Cambridge and colleagues reported in the journal Science.
The chemical's precise role in impulse control has been controversial but this study is one of the first to actually show a causal link, Crockett said."Because we directly manipulated serotonin levels and observed an effect on behavior we can say there is a causal link between serotonin and aggressive responses," Crockett said in a telephone interview.
Their research also helps explain why some people become combative or aggressive when hungry because the essential amino acid needed for the body to create serotonin is only obtained through diet.
The team used this knowledge to manipulate serotonin levels in 20 healthy volunteers who were then asked to play a situation game that tested their responses to fair and unfair offers of money.
People with lower serotonin levels were far more likely to deprive other players of money, even though they lost out as well, as a way to punish the person who made the offer, the researchers said."It is an anger-driven response," Crockett said.
This knowledge could help doctors treat people with depression and anxiety disorders by teaching them ways to regulate emotions during decision making, especially in social situations, she added.
Serotonin levels have that effect, ..., 6 June 2008 [cached]
Serotonin levels have that effect, because the chemical is involved in the activity of the prefrontal region of the brain, explained study author Molly J. Crockett, a doctoral student at the University of Cambridge in England.
"One recent study on the Ultimate Game showed that when an unfair offer is accepted, you see activity in the prefrontal cortex," Crockett said."Down-rating the emotional response makes it more unlikely that an unfair offer will be accepted."
In other words, lower serotonin levels also meant a higher level of resentment, so that an offer that wasn't as good as it might be would be turned down.Conversely, higher serotonin levels would make it easier to live in an imperfect world.
It's hard to apply that knowledge directly, Crockett said.
"What we did was have people fast overnight," she said.
Wellcome Trust Centre for Neuroimaging, 31 Dec 2013 [cached]
Molly Crockett
Dr Molly Crockett, who ..., 24 July 2013 [cached]
Dr Molly Crockett, who undertook the research while at Cambridge University and is currently a Sir Henry Wellcome Postdoctoral Fellow at University College London, said: "Our research suggests that the most effective way to beat temptations is to avoid facing them in the first place."
Yeah! Of course I prefer the ... [cached]
Yeah! Of course I prefer the large one," says Molly Crockett, PhD, lead researcher and Wellcome Trust Research Fellow at University College London, UK.
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