Evidence map›Paper›PMID 19494158›Full record

Trial reportThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

L-dopa modulates functional connectivity in striatal cognitive and motor networks: a double-blind placebo-controlled study.

Clare Kelly, Greig de Zubicaray, Adriana Di Martino, David A Copland, Philip T Reiss, Donald F Klein, F Xavier Castellanos, Michael P Milham, Katie McMahon

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 182 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
182citing papers in PubMed, 2 pooled it
9.1field-weighted citation impact, top 1% 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

182 citing papers in PubMed, 2 syntheses or guidelines pooled it, 299 citations in OpenAlex.

  1. Pooled it
  2. Reading networks at rest.Cerebral cortex (New York, N.Y. : 1991) · 2010
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  7. MDMA-induced changes in within-network connectivity contradict the specificity of these alterations for the effects of serotonergic hallucinogens.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
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122 more citing papers are in PubMed but not listed here.

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

9 authors at 4 institutions in 3 countries.

Clare KellyPhyllis Green and Randolph Cowen Institute for Pediatric Neuroscience, New York University Child Study Center, New York, New York 10016, USA.
Greig de Zubicaray
Adriana Di Martino
David A Copland
Philip T Reiss
Donald F Klein
F Xavier Castellanos
Michael P Milham
Katie McMahon
Nathan Kline Institute for Psychiatric Research · USPhysicians for Human Rights · USThe University of Queensland · AUUniversity of Cagliari · IT

Funding

Functional and Structural Connectivity in Cocaine AddictionR03DA024775 · NIDA · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI KELLY, ANNE MARIE CLARE · 2008 to 2008
$263k
NIDA NIH HHS 1R03DA024775-01NIDA NIH HHS R03 DA024775
6 · The paper itself

Abstract

Functional connectivity (FC) analyses of resting-state fMRI data allow for the mapping of large-scale functional networks, and provide a novel means of examining the impact of dopaminergic challenge. Here, using a double-blind, placebo-controlled design, we examined the effect of L-dopa, a dopamine precursor, on striatal resting-state FC in 19 healthy young adults. We examined the FC of 6 striatal regions of interest (ROIs) previously shown to elicit networks known to be associated with motivational, cognitive and motor subdivisions of the caudate and putamen (Di Martino et al., 2008). In addition to replicating the previously demonstrated patterns of striatal FC, we observed robust effects of L-dopa. Specifically, L-dopa increased FC in motor pathways connecting the putamen ROIs with the cerebellum and brainstem. Although L-dopa also increased FC between the inferior ventral striatum and ventrolateral prefrontal cortex, it disrupted ventral striatal and dorsal caudate FC with the default mode network. These alterations in FC are consistent with studies that have demonstrated dopaminergic modulation of cognitive and motor striatal networks in healthy participants. Recent studies have demonstrated altered resting state FC in several conditions believed to be characterized by abnormal dopaminergic neurotransmission. Our findings suggest that the application of similar experimental pharmacological manipulations in such populations may further our understanding of the role of dopaminergic neurotransmission in those conditions.

Indexed as

AdultBenserazideBrain MappingCognitionCorpus StriatumDopamine AgentsDouble-Blind MethodDrug CombinationsFemaleFunctional LateralityHumansImage Processing, Computer-AssistedLevodopaMagnetic Resonance ImagingMaleMovementBenserazidebenserazide, levodopa drug combinationDopamine AgentsDrug CombinationsLevodopaOxygen

Identifiers

PMID19494158
PMCPMC2928147
OpenAlexW2084699651

What OpenQuestion holds

Textmetadata
LicenceTDM
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.