Inclusion Criteria:

1. Ability to understand and willingness to sign an IRB-approved informed consent
2. Ability to retain independent decision-making capacity as per the enrolling investigator
3. Age ≥ 18 years of age at the time of consent
4. Scheduled to receive BCMA CAR-T therapy for RRMM as confirmed by the treating clinician
5. Ability to read and understand the English language
6. ECOG 0-2
7. If actively taking benzodiazepine, must be able to hold for 3 hours prior to study assessments as per treating clinician
8. Reliable access to internet access; a tablet, laptop and/or desktop computer with a camera; or willingness to come into the clinic to conduct study procedures as outlined in the Study Calendar- as per participant self-report
9. Ability to complete required assessments, as determined by the treating clinician

Exclusion Criteria:

1. Active central nervous system (CNS) disease
2. Known neurodegenerative disease or major neurocognitive disorder
3. Stroke and/or traumatic brain injury (TBI) within 12 months
4. Concurrent investigational neuroactive drugs