The efficacy and feasibility of an immersive virtual reality game to train spatial attention orientation after stroke: A stage 2 report.

Spatial neglect is a post-stroke attention deficit for which there is no evidence-based intervention. Immersive virtual reality (IVR) may increase treatment efficacy, as it allows to train spatial attention in a rich environment. This study evaluated the efficacy and feasibility of an IVR patient-tailored training (HEMIRehApp).

Objectifying subjective memory complaints: VR-based Verbal Word Learning Test in chronic stroke patients.

Memory impairment imposes a great burden on stroke patients and can be divided into Objective Memory Problems (OMPs) and Subjective Memory Complaints (SMCs). Studies have shown that these do not always co-occur. Possibly, the gap between SMCs and OMPs can be bridged when using a more ecologically valid memory test and considering the impact of other common stroke symptoms such as sensory hypersensitivity (SHS) and fatigue.

Extraction of three-dimensional shapes in glaucoma patients in response to monocular depth cues.

Purpose: To assess the impact of glaucoma on perceiving three-dimensional (3D) shapes based on monocular depth cues.

Study Design: Clinical observational study.

Methods: Twenty glaucoma patients, subjected to binocular visual-field sensitivity (binocular-VFS) tests using a Humphrey Visual Field Analyzer, and 20 age-matched healthy volunteers, underwent two tasks: identifying the nearest vertex of a 3D shape using monocular shading (3D-SfS), texture (3D-SfT), or motion (3D-SfM) cues, and distinguishing elementary one-dimensional (1D) features of these cues.

Why am I overwhelmed by bright lights? The behavioural mechanisms of post-stroke visual hypersensitivity.

After stroke, patients can experience visual hypersensitivity, an increase in their sensitivity for visual stimuli as compared to their state prior to the stroke. Candidate behavioural mechanisms for these subjective symptoms are atypical bottom-up sensory processing and impaired selective attention, but empirical evidence is currently lacking. In the current study, we aimed to investigate the relationship between post-stroke visual hypersensitivity and sensory thresholds, sensory processing speed, and selective attention using computational modelling of behavioural data.

Evidence for an age-related decline in feature-based attention.

Feature-based attention allows to efficiently guide attention to relevant information in the visual scene, but unambiguous empirical evidence on age-related effects is still limited. In this study, young and older participants performed a two-alternative forced choice task in which a response was selected based on a task-relevant number (=target) presented alone or with a task-irrelevant letter (=neutral distracter) or number (=compatible/incompatible distracter). Participants were required to select the target based on color.