Evidence map›Paper›PMID 22721958›Full record

ArticleCortex; a journal devoted to the study of the nervous system and behavior2013

Dopamine reverses reward insensitivity in apathy following globus pallidus lesions.

Robert Adam, Alexander Leff, Nihal Sinha, Christopher Turner, Paul Bays, Bogdan Draganski, Masud Husain

Open access · hybridAbstract readCase Reports
In one paragraph

Article in Cortex; a journal devoted to the study of the nervous system and behavior, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

51 citing papers in PubMed, 1 synthesis or guideline pooled it, 101 citations in OpenAlex.

  1. Pooled it
  2. Dopamine Modulates Dynamic Decision-Making during Foraging.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Trial
  3. Review
  4. Article
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  6. Article
  7. Review
  8. Article
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  10. Role of serotonin in modulation of decision-making in Parkinson's disease.Journal of psychopharmacology (Oxford, England) · 2023
    Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Mechanisms Underlying Motivational Dysfunction in Schizophrenia.Frontiers in behavioral neuroscience · 2021
    Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 3 countries.

Robert AdamUCL Institute of Cognitive Neuroscience, London, UK.
Alexander Leff
Nihal Sinha
Christopher Turner
Paul Bays
Bogdan Draganski
Masud Husain
University College London · GBUniversity of Lausanne · CH

Funding

Wellcome Trust 098282
6 · The paper itself

Abstract

Apathy is a complex, behavioural disorder associated with reduced spontaneous initiation of actions. Although present in mild forms in some healthy people, it is a pathological state in conditions such as Alzheimer's and Parkinson's disease where it can have profoundly devastating effects. Understanding the mechanisms underlying apathy is therefore of urgent concern but this has proven difficult because widespread brain changes in neurodegenerative diseases make interpretation difficult and there is no good animal model. Here we present a very rare case with profound apathy following bilateral, focal lesions of the basal ganglia, with globus pallidus regions that connect with orbitofrontal (OFC) and ventromedial prefrontal cortex (VMPFC) particularly affected. Using two measures of oculomotor decision-making we show that apathy in this individual was associated with reward insensitivity. However, reward sensitivity could be established partially with levodopa and more effectively with a dopamine receptor agonist. Concomitantly, there was an improvement in the patient's clinical state, with reduced apathy, greater motivation and increased social interactions. These findings provide a model system to study a key neuropsychiatric disorder. They demonstrate that reward insensitivity associated with basal ganglia dysfunction might be an important component of apathy that can be reversed by dopaminergic modulation.

Indexed as

RewardAdultApathyBasal GangliaDopamineDopamine AgonistsGlobus PallidusHumansMaleParkinson DiseasePrefrontal CortexDopamineDopamine Agonists

Identifiers

PMID22721958
PMCPMC3639369
OpenAlexW2082751386

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.