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Abnormal connectivity in dorsolateral prefrontal cortex in schizophrenia patients and unaffected relatives

Published online by Cambridge University Press:  23 March 2020

L. Galindo*
Affiliation:
IMIM Foundation, Neuropsychiatry and Addictions Institute INAD of Parc de Salut Mar, Barcelona, Spain
F. Pastoriza
Affiliation:
IMIM Foundation, Psychiatry, Barcelona, Spain
D. Bergé
Affiliation:
Neuropsychiatry and Addictions Institute of Parc de Salut Mar, IMIM Foundation, Barcelona, Spain
A. Mané
Affiliation:
Neuropsychiatry and Addictions Institute of Parc de Salut Mar, IMIM Foundation, Barcelona, Spain
N. Roé
Affiliation:
Neuropsychiatry and Addictions Institute of Parc de Salut Mar, IMIM Foundation, Barcelona, Spain
N. Pujol
Affiliation:
Neuropsychiatry and Addictions Institute of Parc de Salut Mar, IMIM Foundation, Barcelona, Spain
M. Picado
Affiliation:
Neuropsychiatry and Addictions Institute of Parc de Salut Mar, IMIM Foundation, Barcelona, Spain
A. Bulbena
Affiliation:
Neuropsychiatry and Addictions Institute of Parc de Salut Mar, IMIM Foundation, Barcelona, Spain
V. Perez
Affiliation:
Neuropsychiatry and Addictions Institute of Parc de Salut Mar, IMIM Foundation. Universitat Autònoma de Barcelona, CIBERSAM G21, Barcelona, Spain
O. Vilarroya
Affiliation:
Universitat Autònoma de Barcelona, IMIM Foundation, Barcelona, Spain
*
* Corresponding author.

Abstract

Objectives

The aim of this study is to explore connectivity of the left dorsolateral prefrontal cortex (LDLPC) by functional magnetic resonance imaging during resting state, in subjects affected by schizophrenia and unaffected relatives.

Methods

We recruited a group of 29 patients diagnosed with schizophrenia, who were treated with atypical antipsychotics, who are and were clinically stable in the last 6 months and had an illness duration range from 5 up to 15 years. We also recruited a group of 23 unaffected relatives, without history of other mental, neurological or somatic disease and a group of 37 healthy volunteers. No subject in any of the three groups met criteria for substance use disorders.

All three groups were clinically evaluated, and a functional magnetic resonance during Resting State was performed.

Functional images were reoriented to the first scan, normalized to the MNI EPI template and smoothed with an 8 mm Gaussian kernel, with SPM. The CONN-FMRI Toolbox v1.2 was used to create individual subject seed-to-voxel connectivity maps, to the corresponding seeds of the default mode network.

Results

Fig. 1.

Conclusions

Our results show a significant increase in connectivity between LDLPC and anterior prefrontal cortex, dorsolateral prefrontal cortex and somatosensory association areas, especially between patients and controls. It is noteworthy to mention that we found a significant decrease in connectivity between LDLPC and supramarginal gyrus, superior temporal gyrus and somatosensory association areas between unaffected relatives and controls.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Type
FC70
Copyright
Copyright © European Psychiatric Association 2016

Fig. 1

Acknowledgments

L. Galindo is funded by the fellowship Río Hortega Spanish government ISCIII (CM14/00111).

Figure 0

Fig. 1

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