Abstract
Background
The Baking Tray Task (BTT) is a simple behavioural test of spatial neglect (SN) that require patients to distributed cubes evenly across a board “as if they were buns on a baking tray”. The aim of this study was to compare the conventional BTT with an immersive virtual reality version (VR-BTT) and take advantage of the technology to quantify not just the final result, but also the spatial and temporal process.
Objectives
First, the aim was to compare the performance on the VR-BTT to the conventional BTT on a group and individual level. Second, the aim was to develop novel kinematic features of the VR-BTT that can improve the clinical analysis of the performance.
Methods
All participants were recruited at Hammel Neurorehabilitation Centre (HNC) and University Research Clinic. Patients with right hemisphere brain injury and behavioural symptoms of spatial neglect were included. Healthy age and gender matched controls were recruited from the HNC staff. The VR-BTT was designed to resemble the conventional BBT as closely as possible. For both the conventional BTT and the VR-BTT we derived the static features: left-
right bias, centre of mass, and dispersion (convex hull) of the final bun placements. For the VR-BTT we developed novel kinematic features: bun sequence, number of moves, movement time, and movement trajectories from continuously sampled data.
Results
Eighteen SN patients and sixteen controls were recruited. Ten SN patients were correctly identified by the VR-BTT compared to eight on the conventional BTT based on left-right buns placement bias. The centre of mass of the buns revealed small to moderate correlation between the conventional and VR-BTT correlation across groups, whereas the dispersion of buns revealed strong correlations. The VR-BTT allows for a more nuanced analysis of the process of solving the task e.g. replaying the sequence and analysing the trajectories of the buns for an improved assessment of the underlying spatial cognition.
The Baking Tray Task (BTT) is a simple behavioural test of spatial neglect (SN) that require patients to distributed cubes evenly across a board “as if they were buns on a baking tray”. The aim of this study was to compare the conventional BTT with an immersive virtual reality version (VR-BTT) and take advantage of the technology to quantify not just the final result, but also the spatial and temporal process.
Objectives
First, the aim was to compare the performance on the VR-BTT to the conventional BTT on a group and individual level. Second, the aim was to develop novel kinematic features of the VR-BTT that can improve the clinical analysis of the performance.
Methods
All participants were recruited at Hammel Neurorehabilitation Centre (HNC) and University Research Clinic. Patients with right hemisphere brain injury and behavioural symptoms of spatial neglect were included. Healthy age and gender matched controls were recruited from the HNC staff. The VR-BTT was designed to resemble the conventional BBT as closely as possible. For both the conventional BTT and the VR-BTT we derived the static features: left-
right bias, centre of mass, and dispersion (convex hull) of the final bun placements. For the VR-BTT we developed novel kinematic features: bun sequence, number of moves, movement time, and movement trajectories from continuously sampled data.
Results
Eighteen SN patients and sixteen controls were recruited. Ten SN patients were correctly identified by the VR-BTT compared to eight on the conventional BTT based on left-right buns placement bias. The centre of mass of the buns revealed small to moderate correlation between the conventional and VR-BTT correlation across groups, whereas the dispersion of buns revealed strong correlations. The VR-BTT allows for a more nuanced analysis of the process of solving the task e.g. replaying the sequence and analysing the trajectories of the buns for an improved assessment of the underlying spatial cognition.
| Originalsprog | Engelsk |
|---|---|
| Titel | World Congress of Neurorehabilitation WCNR'22 |
| Antal sider | 1 |
| Publikationsdato | dec. 2022 |
| Status | Udgivet - dec. 2022 |
| Begivenhed | 12th World Conference for Neurohabilitation - Wien, Østrig Varighed: 14 dec. 2022 → 17 dec. 2022 Konferencens nummer: 12 https://isprm.org/events/wcnr-2022-in-vienna/ |
Konference
| Konference | 12th World Conference for Neurohabilitation |
|---|---|
| Nummer | 12 |
| Land/Område | Østrig |
| By | Wien |
| Periode | 14/12/2022 → 17/12/2022 |
| Internetadresse |