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Published online by Cambridge University Press: 23 March 2020
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.
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.
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.
The authors have not supplied their declaration of competing interest.
Fig. 1
L. Galindo is funded by the fellowship Río Hortega Spanish government ISCIII (CM14/00111).
Fig. 1
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