Automatic gaze tracking in Visual Evoked Potential recording
Research type
Research Study
Full title
Automatic gaze tracking in Visual Evoked Potential recording
IRAS ID
234086
Contact name
Stefano Seri
Contact email
Sponsor organisation
R&D Office, Birmingham Women's and Children's NHS Foundation Trust
Duration of Study in the UK
1 years, 0 months, 1 days
Research summary
Visual evoked potentials (VEPs) are used routinely to assess visual function and help diagnosis of visual pathway disorders. Diagnostic yield of VEPs relies on the ability of the patient to focus on a point on a screen which can be challenging for younger children. Measurements often require the presence of two staff, one for data acquisition, the other to monitor concentration of the child. Subjective assessment of fixation and related staffing implications remain a challenge in achieving diagnostic quality recordings. Recent developments in gaze tracking systems (GTS) enable quantitative, continuous measurement of patient’s fixation and their clinical use could improve diagnostic reliability of VEPs. We aim to evaluate the feasibility of an automatic GTS developed in collaboration with Aston University Biomedical Engineering scientists as an aid for paediatric VEP analysis. We plan to evaluate the effect of change of fixation on the amplitude, latency and morphology of VEPs and determine rejection parameters based on eccentricity of gaze. The VEP data acquisition system will be linked to the GTS; we will use the rejection to develop automatic response rejection criteria. This will lead to a prototype system for VEP analysis with improved diagnostic reliability and reduction in staff time.
REC name
London - Surrey Research Ethics Committee
REC reference
18/LO/0343
Date of REC Opinion
11 Apr 2018
REC opinion
Further Information Favourable Opinion