Cited by 271Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesTryptophan and brain disorders

Reconciling the Role of Serotonin in Behavioral Inhibition and Aversion: Acute Tryptophan Depletion Abolishes Punishment-Induced Inhibition in Humans

Open access
Crockett, Molly J., Clark, Luke, Robbins, Trevor W.·2009·The Journal of Neuroscience

Abstract

The neuromodulator serotonin has been implicated in a large number of affective and executive functions, but its precise contribution to motivation remains unclear. One influential hypothesis has implicated serotonin in aversive processing; another has proposed a more general role for serotonin in behavioral inhibition. Because behavioral inhibition is a prepotent reaction to aversive outcomes, it has been a challenge to reconcile these two accounts. Here, we show that serotonin is critical for punishment-induced inhibition but not overall motor response inhibition or reporting aversive outcomes. We used acute tryptophan depletion to temporarily lower brain serotonin in healthy human volunteers as they completed a novel task designed to obtain separate measures of motor response inhibition, punishment-induced inhibition, and sensitivity to aversive outcomes. After a placebo treatment, participants were slower to respond under punishment conditions compared with reward conditions. Tryptophan depletion abolished this punishment-induced inhibition without affecting overall motor response inhibition or the ability to adjust response bias in line with punishment contingencies. The magnitude of reduction in punishment-induced inhibition depended on the degree to which tryptophan depletion reduced plasma tryptophan levels. These findings extend and clarify previous research on the role of serotonin in aversive processing and behavioral inhibition and fit with current theorizing on the involvement of serotonin in predicting aversive outcomes.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1523/jneurosci.2513-09.2009

Cites

47 of 47 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 3

  1. Cochran WG Cox GM Experimental designs 1957 Wiley New York, N.Y.
  2. Gray JA McNaughton N The neuropsychology of anxiety 2000 Oxford University Press Oxford, England
  3. Rubia K Lee F Cleare AJ Tunstall N Fu CH Brammer M McGuire P Tryptophan depletion reduces right inferior prefrontal activation during response inhibition in fast, event-related fMRI Psychopharmacology (Berl) 2005b 179 791 803 15887056

Cited by

Sorted by citations

Authors
Crockett, M. J., Clark, L., & Robbins, T. W.
Affiliations
University of Cambridge (GB)
Venue
The Journal of Neuroscience
Published
2009-09-23
Volume
29
Issue
38
Pages
11993-11999
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1989848448
Cited by
271
References
47
Citations by year
2026: 4 · 2025: 10 · 2024: 6 · 2023: 15 · 2022: 11 · 2021: 13 · 2020: 13 · 2019: 9 · 2018: 16 · 2017: 26 · 2016: 16 · 2015: 34 · 2014: 18 · 2013: 28 · 2012: 27
FWCI
7.09
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • Wellcome Trust (076244/Z/04/Z, 076274/Z/04/Z)
  • University of Cambridge
  • Cambridge Trust
  • Gates Cambridge Trust
  • Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
serotonin, tryptophan depletion, behavioral inhibition, motor inhibition, response bias, motivation, aversive outcomes
MeSH terms
Adult, Analysis of Variance, Brain, Double-Blind Method, Female, Humans, Impulsive Behavior, Male, Motor Activity, Neuropsychological Tests, Psychomotor Performance, Punishment, Reaction Time, Serotonin, Task Performance and Analysis, Tryptophan

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review