Investigating the cognitive and emotional features of hoarding disorder using virtual reality
Notice bibliographique
Résumé
Hoarding disorder was recently recognized as a mental disorder. It is characterized by difficulty discarding objects and excessive clutter limiting the functionality of living spaces in the home. Hoarding represents a considerable public and personal health concern, but there is still much that is unknown about its development and maintenance. Furthermore, current psychological treatments provide only modest outcomes. The present dissertation examined two key aspects of the cognitive-behavioural model of hoarding: information processing (i.e., memory, attention, decision making, categorization; Study 1) and emotional features (i.e., emotional intensity, experiential avoidance; Study 2). Exploratory questions concerning preference for cluttered spaces were also examined (Study 3). Three novel virtual reality (VR) environments were developed to examine these components with improved ecological validity. Two groups (i.e., with hoarding disorder, n = 36; without hoarding disorder, n = 40) similar in age and gender were recruited from the community. In Study 1, participants completed a series of standardized and novel VR memory and decision making tasks, and created a categorization strategy for objects in a messy VR home office. Higher attentional difficulties, poorer category efficiency, and poorer trait, but not state, memory confidence was reported in the hoarding group. Indecisiveness was positively correlated with perfectionism. There was no evidence of memory and decision making impairments specific to the hoarding group. In Study 2, participants engaged in two VR shopping trips following a negative or neutral mood induction. The hoarding group acquired more objects and at a faster rate than the nonhoarding group, and discarded fewer objects following the negative mood induction. There were no group differences on emotional intensity, but the hoarding group demonstrated higher emotional reactivity and experiential avoidance. In Study 3, reactions to different levels of clutter were observed using a VR living room that became progressively more cluttered. There were no differences in subjective or physiological reactivity to increasing clutter levels. The hoarding group reported a preference for slightly more cluttered rooms; however, they also reported higher claustrophobic fear. Results from this research advance our understanding of the cognitive-behavioural components of hoarding and offer implications for future treatment and VR research initiatives.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,001 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».