Neurological soft signs predict auditory verbal hallucinations in patients with schizophrenia
Neurological soft signs (NSS) are well documented in individuals with schizophrenia (SZ), yet so far, the relationship between NSS and specific symptom expression is unclear. We studied 76 SZ patients using magnetic resonance imaging (MRI) to determine associations between NSS, positive symptoms, gr...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2021
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| In: |
Schizophrenia bulletin
Year: 2020, Jahrgang: 47, Heft: 2, Pages: 433-443 |
| ISSN: | 1745-1701 |
| DOI: | 10.1093/schbul/sbaa146 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/schbul/sbaa146
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| Verfasserangaben: | Robert C. Wolf, Mahmoud Rashidi, Mike M. Schmitgen, Stefan Fritze, Fabio Sambataro, Katharina M. Kubera, and Dusan Hirjak |
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| 245 | 1 | 0 | |a Neurological soft signs predict auditory verbal hallucinations in patients with schizophrenia |c Robert C. Wolf, Mahmoud Rashidi, Mike M. Schmitgen, Stefan Fritze, Fabio Sambataro, Katharina M. Kubera, and Dusan Hirjak |
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| 520 | |a Neurological soft signs (NSS) are well documented in individuals with schizophrenia (SZ), yet so far, the relationship between NSS and specific symptom expression is unclear. We studied 76 SZ patients using magnetic resonance imaging (MRI) to determine associations between NSS, positive symptoms, gray matter volume (GMV), and neural activity at rest. SZ patients were hypothesis-driven stratified according to the presence or absence of auditory verbal hallucinations (AVH; n = 34 without vs 42 with AVH) according to the Brief Psychiatric Rating Scale. Structural MRI data were analyzed using voxel-based morphometry, whereas intrinsic neural activity was investigated using regional homogeneity (ReHo) measures. Using ANCOVA, AVH patients showed significantly higher NSS in motor and integrative functions (IF) compared with non-hallucinating (nAVH) patients. Partial correlation revealed that NSS IF were positively associated with AVH symptom severity in AVH patients. Such associations were not confirmed for delusions. In region-of-interest ANCOVAs comprising the left middle and superior temporal gyri, right paracentral lobule, and right inferior parietal lobule (IPL) structure and function, significant differences between AVH and nAVH subgroups were not detected. In a binary logistic regression model, IF scores and right IPL ReHo were significant predictors of AVH. These data suggest significant interrelationships between sensorimotor integration abilities, brain structure and function, and AVH symptom expression. | ||
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