Inclusion Criteria: 

• Male or female 18-89 years of age
• Documentation of a deficit in cognitive function on at least one screening measure of attention and executive function
  
• Previous diagnosis of COVID-19 confirmed via SARS-CoV-2 polymerase chain reaction (PCR) test documented in the electronic medical record or in other existing medical records
• Access to and self-report of ability to connect wireless devices to a functional wireless network
• Ability to follow written and verbal instructions (English) as assessed by the primary investigator and/or coinvestigator
• Able to comply with all testing and study requirements and willingness to participate in the full study duration

Exclusion Criteria:

• History of neurologic disorder prior to COVID-19 diagnosis, such as Parkinson's disease, multiple sclerosis, Alzheimer's disease, stroke, brain tumor, or dementia
• History of severe mental illness (e.g., schizophrenia, psychosis, history of suicide attempt in the last year) or substance use disorder, recent history (in the past year) of symptoms of psychosis
• Participant is currently considered at risk for attempting suicide by the investigator, has made a suicide attempt within the past year, or is currently demonstrating active suicidal ideation or self-injurious behavior
• Motor condition (e.g., physical deformity of the hands/arms) that prevents game playing as reported by the participant or observed by the investigator
• Recent history (within 6 months prior to screening/baseline) of substance use disorder
• History of seizures (excluding febrile seizures), a tic disorder, significant tics, a current diagnosis of Tourette's Disorder
• Color blindness as determined by self-report
• Regular use of psychoactive drugs other than antidepressants or benzodiazepines, including stimulants that in the opinion of the investigator may confound study data/assessments
• Any other acute medical condition that may interfere with participation or interpretation of the results
• Previous exposure to AKL-T01

Detailed eligibility will be reviewed when you contact the study team.