Recently, virtual reality (VR) entered the field of neuropsychological assessment research. This technology’s impact is currently discussed in the literature, as it is considered a possible promoter of a paradigm shift for neuropsychological testing. Thus, in order to contribute to this ongoing discussion, the present work has multiple purposes. First, it looks at the state-of-the-art of VR technology and its implementation in developing novel assessment tools, presenting the most important benefits of this adoption and the challenges and potential side effects to consider. Then, the core investigation is related to understanding the differences between two kinds of immersive virtual environments currently used to simulate tasks aimed at an ecological assessment of cognitive functioning: Model-Based VR and 360°-VR. To do this, two within-group experiments were carried out to compare performance and user experience-related measures during the execution of immersive VR task variants based on the two abovementioned kinds of virtual environments. The collected evidence supported the development of a third study describing a pilot VR test presented as a first-time example of a multidomain cognitive screening test based on 360°-VR. The performance of this novel-developed test in distinguishing cognitively impaired individuals from unimpaired controls was assessed, with an additional focus on investigating perceived usability and the possible occurrence of simulation sickness. Finally, a feasibility study presenting an extension of the test, including advanced data collection, such as eye-tracking and speech recognition, is offered as a possible future upgrade.
Recentemente, la Realtà Virtuale (virtual reality, VR) è entrata nel campo della ricerca sulla valutazione neuropsicologica. L'impatto di questa tecnologia è attualmente discusso in letteratura, poiché viene considerata come possibile promotrice di un cambio di paradigma per lo sviluppo di nuovi test neuropsicologici. Pertanto, al fine di contribuire a questa discussione in corso, il presente lavoro ha molteplici scopi. In primo luogo, esamina lo stato dell'arte della tecnologia VR e della sua implementazione per lo sviluppo di nuovi strumenti di valutazione, presentando i vantaggi più importanti di questa adozione, le sfide e i potenziali effetti negativi da considerare. Successivamente, l'indagine principale si lega alla comprensione delle differenze tra due tipi di ambienti virtuali immersivi attualmente utilizzati per simulare compiti volti a una valutazione ecologica del funzionamento cognitivo: Model-Based VR e 360°-VR. Per fare ciò, sono stati condotti due esperimenti within-group che hanno confrontato misure relative alle prestazioni e alla user-experience durante l'esecuzione di varianti di attività VR immersive basate sui due tipi di ambienti virtuali sopra menzionati. Le prove raccolte hanno supportato lo sviluppo di un terzo studio, che descrive un test VR pilota presentato come primo esempio assoluto di un test di screening cognitivo multi-dominio basato sulla 360°-VR. È stata valutata la performance di questo nuovo test nel distinguere gli individui con deficit cognitivi dai controlli sani, con un'ulteriore attenzione allo studio dell'usabilità percepita e al possibile insorgenza di sintomi legati alla motion sickness. Infine, come possibile sviluppo futuro, viene presentato uno studio di fattibilità che descrive un'estensione del test che include un sistema avanzato per la raccolta dati, basato sull’eye-tracking e sulla speech recognition.
(2023). Exploring the Use of Virtual Environments for Neuropsychological Assessment. (Tesi di dottorato, Università degli Studi di Milano-Bicocca, 2023).
Exploring the Use of Virtual Environments for Neuropsychological Assessment
PIERI, LUCA
2023
Abstract
Recently, virtual reality (VR) entered the field of neuropsychological assessment research. This technology’s impact is currently discussed in the literature, as it is considered a possible promoter of a paradigm shift for neuropsychological testing. Thus, in order to contribute to this ongoing discussion, the present work has multiple purposes. First, it looks at the state-of-the-art of VR technology and its implementation in developing novel assessment tools, presenting the most important benefits of this adoption and the challenges and potential side effects to consider. Then, the core investigation is related to understanding the differences between two kinds of immersive virtual environments currently used to simulate tasks aimed at an ecological assessment of cognitive functioning: Model-Based VR and 360°-VR. To do this, two within-group experiments were carried out to compare performance and user experience-related measures during the execution of immersive VR task variants based on the two abovementioned kinds of virtual environments. The collected evidence supported the development of a third study describing a pilot VR test presented as a first-time example of a multidomain cognitive screening test based on 360°-VR. The performance of this novel-developed test in distinguishing cognitively impaired individuals from unimpaired controls was assessed, with an additional focus on investigating perceived usability and the possible occurrence of simulation sickness. Finally, a feasibility study presenting an extension of the test, including advanced data collection, such as eye-tracking and speech recognition, is offered as a possible future upgrade.File | Dimensione | Formato | |
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phd_unimib_854293.pdf
embargo fino al 16/05/2026
Descrizione: Exploring the Use of Virtual Environments for Neuropsychological Assessment
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Doctoral thesis
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4.78 MB
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