Covid-19 infection can cause persistent symptoms, including fatigue, disorientation, concentration difficulties and memory problems, long after recovery. In the proposed project, an application was developed to obtain information about key behavioural markers indicative of neuronal integrity (sensory integration) and cognitive functioning (attention and memory) as biomarkers of Covid-19 neurological damage. This is done with an online study, in order to be able to relate the effects and severity in terms of persistent symptoms in patients who have already been infected. The application allows participants to perform a battery of tests, consisting of a series of cognitive tasks with visual and auditory stimuli.