Online First Nr58

Psychiatr. Pol. ONLINE FIRST Nr 58 1–15

Published ahead of print 20 December 2016

DOI: https://doi.org/10.12740/PP/OnlineFirst/67027

Marta Gawłowska-Sawosz, Agnieszka Pawełczyk, Piotr Gębski,
Tomasz Pawełczyk, Dominik Strzelecki, Jolanta Rabe-Jabłońska

FREE POLISH FULLTEXT:
Ocena zaburzeń struktury istoty białej ocenianych w badaniach traktograficznych i zaburzeń pamięci operacyjnej u chorych na schizofrenię o wczesnym początku i ich krewnych pierwszego stopnia

FREE ENGLISH FULLTEXT:
Evaluation of white matter structure changes, as assessed in tractography, and cognitive dysfunctions in patients with early onset schizophrenia and their first-degree relatives


Summary
Aim. The aim of the project was to assess the differences in the white matter (WM) fiber structure between patients with early onset schizophrenia (EOS), their first degree relatives and controls using Fractional Anisotropy (FA), and an independent evaluation of the severity of working memory disturbances in the study groups.
Methods. The study included 20 patients diagnosed with paranoid EOS (diagnosed before the age of 18), a group of 20 parents of patients, matched for gender, and 18 healthy controls. All study participants were examined with Diffusion Tensor Imaging (DTI, 1.5 T) and selected neuropsychological tests to assess working memory, immediate memory and attention (Trail Making Test parts A and B: TMT-A and TMT-B, Digit Span Forward and Backward).
Results. No significant differences in FA parameters were found between the analyzed groups. The group of patients took significantly longer to perform the TMT-A and TMT-B than the control group, and achieved worse outcomes in Digit Span tests. The relatives of the patients achieved lower scores in Digit Span tests and needed more time to perform TMT-B compared to controls. There were no significant differences between all groups in terms of the number of errors when performing TMT-A and TMT-B.
Conclusions. The results of our study indicate a reduction in the capacity of immediate memory, working memory, cognitive plasticity and divided attention, both in EOS patients and their first degree relatives compared to healthy subjects. The reported neuropsychological deficits were not reflected in WM integrity, as assessed with FA.



ISSN 0033-2674 (PRINT)

ISSN 2391-5854 (ONLINE)


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