[Coercive measures for covid-19: application of which law?] / Dwangmaatregelen vanwege covid-19.

Since the end of January 2020, covid-19 is a group A infectious disease according to the Public Health Act (in Dutch: Wet publiekegezondheid or Wpg). To avert the risk of infection with covid-19, coercive measures can be imposed under this law. Almost at the same time, since January 1 2020, two new Dutch laws regulate the mandatory care for people with intellectual disability and dementia (the Care and Compulsion Act (in Dutch: Wet zorgendwang or Wzd) and for people with a mental disorder (the Mandatory Mental Health Care Act (in Dutch: Wet verplichte GGZ or Wvggz). Just like the Wpg, the Wzd and Wvggz allow coercion for the benefit of third parties. In this clinical lesson we describe the use of the Wpg, Wzd and Wvggz in order to avert covid-19 infection risk.

Sound improves diminished visual temporal sensitivity in schizophrenia.

Visual temporal processing and multisensory integration (MSI) of sound and vision were examined in individuals with schizophrenia using a visual temporal order judgment (TOJ) task. Compared to a non-psychiatric control group, persons with schizophrenia were less sensitive judging the temporal order of two successively presented visual stimuli. However, their sensitivity to visual temporal order improved as in the control group when two accessory sounds were added (temporal ventriloquism). These findings indicate that individuals with schizophrenia have diminished sensitivity to visual temporal order, but no deficits in the integration of low-level auditory and visual information.

Deficient multisensory integration in schizophrenia: an event-related potential study.

BACKGROUND: In many natural audiovisual events (e.g., the sight of a face articulating the syllable /ba/), the visual signal precedes the sound and thus allows observers to predict the onset and the content of the sound. In healthy adults, the N1 component of the event-related brain potential (ERP), reflecting neural activity associated with basic sound processing, is suppressed if a sound is accompanied by a video that reliably predicts sound onset. If the sound does not match the content of the video (e.g., hearing /ba/ while lipreading /fu/), the later occurring P2 component is affected. Here, we examined whether these visual information sources affect auditory processing in patients with schizophrenia. METHODS: The electroencephalography (EEG) was recorded in 18 patients with schizophrenia and compared with that of 18 healthy volunteers. As stimuli we used video recordings of natural actions in which visual information preceded and predicted the onset of the sound that was either congruent or incongruent with the video. RESULTS: For the healthy control group, visual information reduced the auditory-evoked N1 if compared to a sound-only condition, and stimulus-congruency affected the P2. This reduction in N1 was absent in patients with schizophrenia, and the congruency effect on the P2 was diminished. Distributed source estimations revealed deficits in the network subserving audiovisual integration in patients with schizophrenia. CONCLUSIONS: The results show a deficit in multisensory processing in patients with schizophrenia and suggest that multisensory integration dysfunction may be an important and, to date, under-researched aspect of schizophrenia.