2016
Neuronal substrate and effective connectivity of abnormal movement sequencing in schizophrenia
ZEMÁNKOVÁ, Petra, Ovidiu LUNGU, Jitka HÜTTLOVÁ, Miloš KEŘKOVSKÝ, Jozef ŽÚBOR et. al.Základní údaje
Originální název
Neuronal substrate and effective connectivity of abnormal movement sequencing in schizophrenia
Autoři
ZEMÁNKOVÁ, Petra (203 Česká republika, garant, domácí), Ovidiu LUNGU (124 Kanada), Jitka HÜTTLOVÁ (203 Česká republika, domácí), Miloš KEŘKOVSKÝ (203 Česká republika, domácí), Jozef ŽÚBOR (703 Slovensko, domácí), Petra LIPOVÁ (203 Česká republika), Martin BAREŠ (203 Česká republika, domácí) a Tomáš KAŠPÁREK (203 Česká republika, domácí)
Vydání
PROGRESS IN NEURO-PSYCHOPHARMACOLOGY & BIOLOGICAL PSYCHIATRY, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2016, 0278-5846
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30000 3. Medical and Health Sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.187
Kód RIV
RIV/00216224:14740/16:00088867
Organizační jednotka
Středoevropský technologický institut
UT WoS
000371795200001
Klíčová slova anglicky
Schizophrenia; Movement sequencing; Neurological soft signs; fMRI; Effective connectivity
Změněno: 5. 8. 2016 11:05, Mgr. Eva Špillingová
Anotace
V originále
Movement sequencing difficulties are part of the neurological soft signs (NSS), they have high clinical value because they are not always present in schizophrenia. We investigated the neuronal correlates of movement sequencing in 24 healthy controls and 24 schizophrenia patients, with (SZP SQ+) or without (SZP SQ-) sequencing difficulties. We characterized simultaneous and lagged functional connectivity between brain regions involved in movement sequencing using psychophysiological interaction (PPI) and the Granger causality modeling (GCM), respectively. Left premotor cortex (PMC) and superior parietal lobule (SPL) were specifically activated during sequential movements in all participants. Right PMC and precuneus, ipsilateral to the hand executing the task, activated during sequential movements only in healthy controls and SZP SQ-. SZP SQ+ showed hyper-activation in contralateral PMC, as compared to the other groups. PPI analysis revealed a deficit in inhibitory connections within this fronto-parietal network in SZP SQ+ during sequential task. GCM showed a significant lagged effective connectivity from right PMC to left SPL during task and rest periods in all groups and from right PMC to right precuneus in SZP SQ+ group only. Both SZP groups had a significant lagged connectivity from right to left PMC, during sequential task. Our results indicate that aberrant fronto-parietal network connectivity with cortical inhibition deficit and abnormal reliance on previous network activity are related to movement sequencing in SZP. The overactivation of motor cortex seems to be a good compensating strategy, the hyperactivation of parietal cortex is linked to motor deficit symptoms. (C) 2016 Elsevier Inc. All rights reserved.
Návaznosti
ED1.1.00/02.0068, projekt VaV |
| |
NT13437, projekt VaV |
|