Evidence map›Paper›PMID 26467308›Full record

ArticleHuman brain mapping2015

Insight and psychosis: Functional and anatomical brain connectivity and self-reflection in Schizophrenia.

Branislava Ćurčić-Blake, Lisette van der Meer, Gerdina H M Pijnenborg, Anthony S David, André Aleman

Abstract read
In one paragraph

Article in Human brain mapping, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
–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

27 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

5 authors.

Branislava Ćurčić-BlakeDepartment of Neuroscience, University of Groningen, BCN Neuroimaging Center (NIC), University Medical Center, Groningen, The Netherlands.
Lisette van der MeerDepartment of Neuroscience, University of Groningen, BCN Neuroimaging Center (NIC), University Medical Center, Groningen, The Netherlands.
Gerdina H M PijnenborgDepartment of Clinical Psychosis and Experimental Psychopathalogy, University of Groningen, Grote Kruisstraat, The Netherlands.
Anthony S DavidDepartment of Psychosis Studies, Institute of Psychiatry, King's College London, Denmark, Hill, United Kingdom.
André AlemanDepartment of Neuroscience, University of Groningen, BCN Neuroimaging Center (NIC), University Medical Center, Groningen, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Impaired insight into illness, associated with worse treatment outcome, is common in schizophrenia. Insight has been related to the self-reflective processing, centred on the medial frontal cortex. We hypothesized that anatomical and functional routes to and from the ventromedial prefrontal cortex (vmPFC) would differ in patients according to their degree of impaired insight. Forty-five schizophrenia patients and 19 healthy subjects performed a self-reflection task during fMRI, and underwent diffusion tensor imaging. Using dynamic causal modelling we observed increased effective connectivity from the posterior cingulate cortex (PCC), inferior parietal lobule (IPL), and dorsal mPFC (dmPFC) towards the vmPFC with poorer insight and decrease from vmPFC to the IPL. Stronger connectivity from the PCC to vmPFC during judgment of traits related to self was associated with poorer insight. We found small-scale significant changes in white matter integrity associated with clinical insight. Self-reflection may be influenced by synaptic changes that lead to the observed alterations in functional connectivity accompanied by the small-scale but measurable alterations in anatomical connections. Our findings may point to a neural compensatory response to an impairment of connectivity between self-processing regions. Similarly, the observed hyper-connectivity might be a primary deficit linked to inefficiency in the component cognitive processes that lead to impaired insight. We suggest that the stronger cognitive demands placed on patients with poor insight is reflected in increased effective connectivity during the task in this study.

Indexed as

Schizophrenic PsychologyAdultFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedModels, NeurologicalNerve NetNeural PathwaysOxygenPrefrontal CortexPsychiatric Status Rating ScalesSchizophreniaWhite MatterOxygenanatomical connectivitybrain connectivitydiffusion tensor imaging (DTI)dynamic causal modelling (DCM)functional connectivityinsight into psychosisschizophreniaself-reflectiontract-based spatial statistics (TBSS)

Identifiers

PMID26467308
PMCPMC6869637

What Socratic holds

Textmetadata
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 Socratic graph.