AI Article Synopsis
- Patients with schizophrenia have difficulty integrating visual features into coherent objects, which is linked to disrupted brain oscillatory activities.
- This study recorded EEG from both healthy individuals and schizophrenia patients while they viewed a motion stimulus designed to provoke differing perceptions.
- The findings showed lower delta and theta oscillatory synchronizations in patients, highlighting impairments in their motion perception processing compared to healthy controls.
Article Abstract
Patients with schizophrenia show impairment in binding stimulus features into coherent objects, which are reflected in disturbed oscillatory activities. This study aimed to identify disturbances in multiple oscillatory bands during perceptual organization of motion perception in patients with schizophrenia. EEG was recorded from healthy controls and patients with schizophrenia during continuous presentation of a motion stimulus which induces reversals between two exogenously generated perceptions. This stimulus was used to investigate differences in motion binding processes between healthy controls and patients with schizophrenia. EEG signals were transformed into frequency components by means of the Morlet wavelet transformation in order to analyse inter-trial coherences (ITC) in the delta (1-4 Hz), theta (4-7 Hz), alpha (8-12 Hz), and gamma (28-48 Hz) frequency bands during exogenous motion binding. Patients showed decreased delta-ITC in occipital and theta-ITC in central and parietal areas, while no significant differences were found for neither alpha nor gamma-ITCs. The present study provides one of the first insights on the oscillatory synchronizations related with the motion perception in schizophrenia. The ITC differences revealed alterations in the consistency of large-scale integration and transfer functions in patients with schizophrenia.
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| http://dx.doi.org/10.1177/15500594221141825 | DOI Listing |
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