inclusion criteria: - presence of cognitive impairment due to covid-19 infection - mild-to-moderate general cognitive impairment as determined by a montreal cognitive assessment (moca) score between 10-25 - at least 3 months after positive status for covid-19 - 18 years or older - medically stable - sufficiently fit, from both a physical and mental health perspective, to take part in study - adequate sight and hearing to complete ufov test - adequate thinking skills, e.g., ability to follow directions, retain information, to complete ufov and ctal, as marked by judgement of the screener that the candidate is able to adequately complete the ufov and ctal - reside in the community (as opposed to a hospital or skilled nursing facility) - able to travel to laboratory on multiple occasions - caregiver available

inclusion criteria: - presence of cognitive impairment due to covid-19 infection - mild-to-moderate general cognitive impairment as determined by a montreal cognitive assessment (moca) score between 10-25 - at least 3 months after positive status for covid-19 - 18 years or older - medically stable - sufficiently fit, from both a physical and mental health perspective, to take part in study - adequate sight and hearing to complete ufov test - adequate thinking skills, e.g., ability to follow directions, retain information, to complete ufov and ctal, as marked by judgement of the screener that the candidate is able to adequately complete the ufov and ctal - reside in the community (as opposed to a hospital or skilled nursing facility) - able to travel to laboratory on multiple occasions - caregiver available