VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
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Amygdala connectivity differs among chronic, early course, and individuals at risk for developing schizophreniaAnticevic, Alan ...Alterations in circuits involving the amygdala have been repeatedly implicated in schizophrenia neuropathology, given their role in stress, affective salience processing, and psychosis onset. ... Disturbances in amygdala whole-brain functional connectivity associated with schizophrenia have yet to be fully characterized despite their importance in psychosis. Moreover, it remains unknown if there are functional alterations in amygdala circuits across illness phases. To evaluate this possibility, we compared whole-brain amygdala connectivity in healthy comparison subjects (HCS), individuals at high risk (HR) for schizophrenia, individuals in the early course of schizophrenia (EC-SCZ), and patients with chronic schizophrenia (C-SCZ). We computed whole-brain resting-state connectivity using functional magnetic resonance imaging at 3T via anatomically defined individual-specific amygdala seeds. We identified significant alterations in amygdala connectivity with orbitofrontal cortex (OFC), driven by reductions in EC-SCZ and C-SCZ (effect sizes of 1.0 and 0.97, respectively), but not in HR for schizophrenia, relative to HCS. Reduced amygdala-OFC coupling was associated with schizophrenia symptom severity (r = .32, P < .015). Conversely, we identified a robust increase in amygdala connectivity with a brainstem region around noradrenergic arousal nuclei, particularly for HR individuals relative to HCS (effect size = 1.54), but not as prominently for other clinical groups. These results suggest that deficits in amygdala-OFC coupling could emerge during the initial episode of schizophrenia (EC-SCZ) and may present as an enduring feature of the illness (C-SCZ) in association with symptom severity but are not present in individuals with elevated risk for developing schizophrenia. Instead, in HR individuals, there appears to be increased connectivity in a circuit implicated in stress response.Vrsta gradiva - separat ; neleposlovje za odrasleZaložništvo in izdelava - Oxford : Oxford University Press, 2014Jezik - angleškiCOBISS.SI-ID - 55083362
Avtor
Anticevic, Alan |
Repovš, Grega
Teme
shizofrenija |
amigdala |
funkcijska konektivnost |
prefronalni korteks |
možgani |
funkcijsko magnetnoresonančno slikanje (fMRI) |
separati |
schizophrenia |
amygdala |
functional connectivity |
prefrontal cortex |
brain |
functional magnetic resonance imaging (fMRI) |
offprints
Knjižnica/institucija |
Kraj | Akronim | Za izposojo | Druga zaloga |
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FF, Osrednja humanistična knjižnica, Ljubljana | Ljubljana | FFLJ |
na dom 1 izv.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Anticevic, Alan | |
Repovš, Grega | 17893 |
Vir: Osebne bibliografije
in: SICRIS
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