Evidence map›Paper›PMID 25859207›Full record

ReviewFrontiers in human neuroscience2015

The first 1000 days of the autistic brain: a systematic review of diffusion imaging studies.

Eugenia Conti, Sara Calderoni, Viviana Marchi, Filippo Muratori, Giovanni Cioni, Andrea Guzzetta

Abstract readReview
In one paragraph

Review in Frontiers in human neuroscience, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
–field-weighted citation impact
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

30 citing papers in PubMed.

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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

6 authors.

Eugenia ContiDepartment of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy ; Department of Clinical and Experimental Medicine, University of Pisa Pisa, Italy.
Sara CalderoniDepartment of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy.
Viviana MarchiDepartment of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy ; Department of Clinical and Experimental Medicine, University of Pisa Pisa, Italy.
Filippo MuratoriDepartment of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy ; Department of Clinical and Experimental Medicine, University of Pisa Pisa, Italy.
Giovanni CioniDepartment of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy ; Department of Clinical and Experimental Medicine, University of Pisa Pisa, Italy.
Andrea GuzzettaDepartment of Developmental Neuroscience, Stella Maris Scientific Institute, IRCCS Stella Maris Foundation Pisa, Italy ; Department of Clinical and Experimental Medicine, University of Pisa Pisa, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is overwhelming evidence that autism spectrum disorder (ASD) is related to altered brain connectivity. While these alterations are starting to be well characterized in subjects where the clinical picture is fully expressed, less is known on their earlier developmental course. In the present study we systematically reviewed current knowledge on structural connectivity in ASD infants and toddlers. We searched PubMed and Medline databases for all English language papers, published from year 2000, exploring structural connectivity in populations of infants and toddlers whose mean age was below 30 months. Of the 264 papers extracted, four were found to be eligible and were reviewed. Three of the four selected studies reported higher fractional anisotropy values in subjects with ASD compared to controls within commissural fibers, projections fibers, and association fibers, suggesting brain hyper-connectivity in the earliest phases of the disorder. Similar conclusions emerged from the other diffusion parameters assessed. These findings are reversed to what is generally found in studies exploring older patient groups and suggest a developmental course characterized by a shift toward hypo-connectivity starting at a time between two and four years of age.

Indexed as

autismdiffusion MRIhyperconnectivityneurodevelopmentstructural connectivitytoddlers

Identifiers

PMID25859207
PMCPMC4374458

What OpenQuestion holds

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Registered trials

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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.