Evidence map›Paper›PMID 23307638›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2014

Pharmacological dissociation of novelty responses in the human brain.

Nico Bunzeck, Marc Guitart-Masip, Raymond J Dolan, Emrah Duzel

Open access · hybridAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

27 citing papers in PubMed, 62 citations in OpenAlex.

  1. Trial
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  7. Review
  8. Anticipation of novel environments enhances memory for incidental information.Learning & memory (Cold Spring Harbor, N.Y.) · 2021
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  14. Review
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  19. Retrieval Demands Adaptively Change Striatal Old/New Signals and Boost Subsequent Long-Term Memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    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

4 authors at 3 institutions in 2 countries.

Nico BunzeckDepartment of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany.
Marc Guitart-Masip
Raymond J Dolan
Emrah Duzel
University College London · GBOtto-von-Guericke University Magdeburg · DEUniversität Hamburg · DE

Funding

Wellcome Trust 091593Wellcome Trust 098362Wellcome Trust 81259
6 · The paper itself

Abstract

Repeated processing of the same information is associated with decreased neuronal responses, termed repetition suppression (RS). Although RS effects (i.e., the difference in activity between novel and repeated stimuli) have been demonstrated within several brain regions, such as the medial temporal lobe, their precise neural mechanisms still remain unclear. Here, we used functional magnetic resonance imaging together with psychopharmacology in 48 healthy human subjects, demonstrating that RS effects within the mesolimbic system are differentially modulated by cholinergic and dopaminergic stimulation. The dopamine precursor levodopa (100 mg) attenuated RS within the hippocampus, parahippocampal cortex, and substantia nigra/ventral tegmental area, and the degree of this reduction correlated with recognition memory performance 24 h later. The acetylcholinesterase inhibitor galantamine (8 mg), in contrast, reversed RS into repetition enhancement, showing no relationship to subsequent recognition memory. This suggests that novelty sensitive neural populations of the mesolimbic system can dynamically shift their responses depending on the balance of cholinergic and dopaminergic neurotransmission, and these shifts can influence memory retention.

Indexed as

Repression, PsychologyAttentionBody WeightBrainBrain MappingCholinesterase InhibitorsDopamine AgentsExploratory BehaviorFemaleGalantamineHealthy VolunteersHumansLevodopaMagnetic Resonance ImagingMaleNeural PathwaysCholinesterase InhibitorsDopamine AgentsGalantamineLevodopaacetylcholinedopaminefunctional magnetic resonance imagingnoveltyrepetition suppression

Identifiers

PMID23307638
PMCPMC3977623
OpenAlexW2106398352

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.