- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT07602712
Using Illusions to Boost Social Cognition (SOLLUSIONS)
Socio-cognitive Benefits of Exposure to Visual Illusions in Patients With Psychotic Disorders
This study aims to explore whether the observation of complex visual objects can help improve social cognition in people living with psychotic disorders. Social cognition refers to the ability to understand what others think, feel, or intend, and plays a key role in social relationships and daily interactions.
Main questions this study aims to answer:
- Does dyadic exposure to complex visual objects improve mental state attribution, as measured by the Faux Pas Test?
- Does the intervention enhance related domains of social cognition, including implicit intention inference (Hinting Task), interpretation of complex interactions (Movie for the Assessment of Social Cognition, MASC), and reduction of hostile attribution biases (Ambiguous Intentions Hostility Questionnaire, AIHQ)?
- Are improvements maintained after one month, and do patients who receive the intervention later (waitlist group) show the same benefits once exposed?
Přehled studie
Postavení
Detailní popis
This study is a randomized, controlled, monocentric trial evaluating a novel sensory-motor rehabilitation approach for social cognition. The study is based on the hypothesis that perception is interpretative and viewpoint-dependent, and that realizing this through concrete experience could generalize to higher-level cognitive processes required for social understanding.
Participants will attend three visits and complete questionnaires and tasks that assess social understanding before and after the activity, and again one month later.
Two groups will take part: one completing the workshop shortly after inclusion, and one completing it after a delay, allowing comparison over time. Participants will be randomized in one condition.
This research does not involve medication. It consists of simple tasks such as observing and describing visual stimuli, followed by a facilitated discussion.
Neuropsychological tests and questionnaires will be used to measure changes over time.
Expected impact: By inducing concrete perspective-shifts, the intervention aims to improve mentalizing, reduce egocentric biases, and strengthen interpretation of social cues. This bottom-up sensory-motor approach may overcome limitations of classical cognitive remediation programs by promoting deep experiential learning rather than top-down instruction.
If effective, the method may support long-term social reintegration, psychosocial functioning, and inspire wider clinical applications due to its low cost, ease of deployment, and strong ecological engagement.
Typ studie
Zápis (Odhadovaný)
Fáze
- Nelze použít
Kontakty a umístění
Studijní kontakt
- Jméno: Joy El KHOURY
- Telefonní číslo: +330437915534
- E-mail: joy.el-khoury@inserm.fr
Studijní záloha kontaktů
- Jméno: Méline Devaluez, PhD
- E-mail: meline.devaluez@ch-le-vinatier.fr
Studijní místa
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Bron, Francie, 69678
- CH Le Vinatier
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Vrchní vyšetřovatel:
- Frédéric HAESEBAERT, MD, PhD
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Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
Přijímá zdravé dobrovolníky
Popis
Inclusion Criteria:
- Aged 18 to 40 years
- Fluent French speaker
- Has provided written informed consent
- For individuals under guardianship (curatorship): inclusion is permitted if the curator is available to assist or advise when needed.
- Established diagnosis of schizophrenia, schizoaffective disorder, schizophreniform disorder, or brief psychotic disorder according to theDiagnostic and statistical manual of mental disorders (DSM-5-TR) criteria
- Presence of social cognition impairment, defined by:subjective complaint reported by the participant or identified by care teams regarding difficulties in social interaction and clinical confirmation of observable difficulties (e.g., social withdrawal, misinterpretation of others' intentions, inappropriate social behaviour)
- Membership or entitlement to a social security plan
Exclusion Criteria:
- Clinical state incompatible with participation in group-based activities (e.g., severe psychomotor agitation, severe behavioural disturbance)
- Concurrent participation in another social cognition remediation program
- Diagnosis of intellectual disability
- Insufficient comprehension of French for verbal interaction and test completion
- Significant change in psychotropic medication within the past month
- Uncorrectable visual impairment preventing participation
- Pregnant women
- Individuals under full guardianship (tutorship)
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Podpůrná péče
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Žádné (otevřený štítek)
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
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Experimentální: Immediate intervention
Participants receive the visual-perception session shortly after baseline assessment.
They complete neurocognitive and social cognition tests before exposure, immediately after, and again at one-month follow-up.
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A guided session of approximately 45 minutes. The core rehabilitation tool consists of multiple-perspective illusion boxes. Each participant stands on one side of the box and perceives a different shape than their partner. The session unfolds in 3 structured phases:
The session is followed by a short structured discussion with a psychologist focused on perspective-taking and interpretation of social cues. |
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Aktivní komparátor: Delayed Intervention (Wait-list Control)
Participants complete the same assessments as Arm 1 but receive the intervention only after a waiting period.
This arm allows comparison between natural progression and workshop effects prior to exposure.
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A guided session of approximately 45 minutes.
The core rehabilitation tool consists of multiple-perspective illusion boxes.
Each participant stands on one side of the box and perceives a different shape than their partner.
The session unfolds in 3 structured phases: 1.
For each illusion : Participants observe objects silently and draw what they see.
2. Perspective confrontation + Card selection: Drawings and interpretation cards are exchanged and discussed.
3. Perspective switching : Participants swap positions to reveal the alternative visual interpretation.
The session is followed by a short structured discussion with a psychologist focused on perspective-taking and interpretation of social cues.
Delivered after a delay following baseline assessment.
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
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"Faux Pas" test total score
Časové okno: Change from pre to post intervention (up to 3 hours)
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Change from pre to post intervention (up to 3 hours)
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Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
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Hinting Task
Časové okno: Change from pre to post intervention (up to 3 hours)
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Change from pre to post intervention (up to 3 hours)
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MASC performance
Časové okno: Change from pre intervention to follow-up session (up to a month and a half)
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Number of correct responses Score range 0 - 45 Minimum (0) : No correct mental state inference Maximum (45) : All mental states correctly inferred
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Change from pre intervention to follow-up session (up to a month and a half)
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Spolupracovníci a vyšetřovatelé
Sponzor
Spolupracovníci
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Odhadovaný)
Primární dokončení (Odhadovaný)
Dokončení studie (Odhadovaný)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
Další identifikační čísla studie
- 2025-A02057-42
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Kritéria přístupu pro sdílení IPD
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Klinické studie na Sociální poznávání
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Shandong UniversityDokončenoNegativní emoce | Self CognitionČína