Inclusion Criteria:  Subjects able to understand the information and consent forms; Medically stable and at least 3 months after positive PCR for Covid-19; Self-reported sufficiently good physical condition to attend the appointment; No major hearing or vision disorders; Cognitive complaints that place the person in the top 20% of dissatisfied functioning on the BRIEF or MMQ questionnaires; Poor objective performance supported by a score below the 20th percentile on one task of the cognitive battery.  Exclusion Criteria:  Any chronic or remote neurological disorder (i.e. stroke, head trauma, epilepsy, tumor); Cognitive impairment (minor or major neurocognitive disorder; intellectual disability) preexisting to the Covid-19 episode; Acute brain injury or acute encephalopathy from another aetiology than covid (e.g., sepsis, liver or renal failure, alcohol or drug withdrawal, drug toxicity); Documented preexisting history of psychiatric illness, including substance abuse; Open-heart cardiac surgery or cardiac arrest during the last 6 months; Current hospitalization; Current revalidation care with cognitive treatment