emotieherkenning Psychotic disorder schizophrenia
Conditions
Interventions
None listed
Sponsors
Universitair Medisch Centrum Groningen
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria are: - a diagnosis of a psychotic disorder, - age between 18 - 65.
Exclusion criteria
Exclusion criteria: Exclusion criteria are: - an estimated IQ below 70, - insufficient proficiency of the Dutch language, - and presence of a relevant neurological disorder such as dementia, epilepsy or organic brain damage, -PANSS postive symptom score of 5 or higher.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Emotion recognition - Emotion Validation in Virtual Reality (EVVR): The EVVR software can be used to assess emotion recognition. In the EVVR program a virtual character (avatar) is standing in a street environment. Avatars can be turned around, and the distance between the avatar and the participant can be controlled by the experimenter as well as the participant. Forty-three different avatars can be displayed in random order. Each avatar is able to express the six basic emotions (anger, disgust, fear, happiness, sadness, and surprise). Additionally, this program offers the possibility to vary the intensity of the emotions. In total there are three intensities: 50 (low intensity), 75 (medium intensity), 100 (maximum intensity).So, more specially, the emotion (anger, disgust, fear, happiness, sadness or surprise) and intensity of the emotion (50, 75, 100%) of each avatar can be determined . For the EVVR task 86 avatars have to be rated on the type and intensity of the emotion, and how sure the participant believes his response was correct. - Emotion Recognition Task VR (ERT-VR): The emotion recognition task is part of a VR training module for social cognition training in psychosis (i.e., DiSCoVR, NL55477.042.16). During this emotion recognition task participants use a joystick to walk around in a VR street environment where avatars are located at random places. When a participant gets within a radius of 2 meters, the avatar shows an emotion. At the same time a multiple choice menu pops-up displaying four answer options. The participants is asked to select which of the six basic emotions the avatar is showing. This VR software has the same options for emotion display as EVVR (with respect to the type of emotions, intensity and combinations). In total 20 avatars have to be rated. Half of the participants will rate avatars in an empty street environment, half of them in a crowded street environment. This means in the empty street environment no | — |
Secondary
| Measure | Time frame |
|---|---|
| - Positive and Negative Syndrome Scale (PANSS) (Kay et al., 1987): This is an interview based rating scale designed to measure severity of psychopathology in adult patients with schizophrenia, positive (7 items) and negative symptoms (7 items) will be assessed. - Green Paranoid Thought Scale (GPTS) (Green et al., 2008): Measures two dimensions of paranoid thinking with a 20-item questionnaire: ideas of social reference and ideas of social persecution. - Social interaction anxiety scale (SIAS) (Mattick & Clarke, 1998): The SIAS is a 20-item questionnaire for social anxiety. Subjects indicate the degree to which statements are characteristic for them. Responses can range from 0 (not at all) to 4 (extremely). - Beck Depresion Inventory (BDI) (Beck, Steer, & Brown, 1996): The BDI measures the level of depressive symptoms with 21 items. - State Social Paranoia Scale (SSPS) (Freeman et al., 2007): Measures paranoid thinking about the avatars with a 20-item questionnaire, with 10 items assessing persecutory thoughts (e.g. *someone had bad intentions towards me*), and 10 items measuring positive and neutral thoughts on a 5-point-scale. - Evaluation VR task: subjective experience of the emotion tasks, assessing experiences, realism, and difficulties. | — |
Countries
Netherlands
Outcome results
None listed