Rehabilitation and Longitudinal Follow-up of Cognition in Adult Lower Grade Gliomas

Arm 1: Inclusion Criteria: * Histologically confirmed low grade supratentorial primary brain tumor * \>= 18 years old * Life expectancy \> 12 weeks * Karnofsky performance status (KPS) \>= 70 * Must speak and be able to read English fluently * Must have access to the internet * Must have text enabled cellphone * Must be receiving MRI scans at University of California, San Francisco (UCSF) * Must be clinically stable and off treatment (e.g. radiation or chemotherapy) for ≥ 3 months * Must be \>= 6 months from craniotomy * Must have subjective complaints of cognitive deficits * Must have adequate seizure control and be on a stable, or decreasing, dose of anti-epileptics * Must score \<= 1 SD below normal on ≥ 2 or more domains of baseline neuropsychological assessments Exclusion Criteria: * Diagnosis or evidence of any of the following: * • Glioblastoma * • Extra-axial disease (i.e. meningioma) * • Infra-tentorial disease * Are not able to comply with study and/or follow-up procedures * Are unable to complete or score \>= 3 cognitive tests at baseline, which is indicative that patients would be unable to complete the cognitive rehabilitation interventions * Are acutely suicidal, psychotic, and/or gravely disabled. * Patients who, based on the neuropsychologist's opinion, are unable to participate in cognitive testing and/or cognitive rehab secondary to significant neurologic deficit Arm 2: Inclusion Criteria: * Have a presumed lower grade IDH-mutated primary brain tumor and either be undergoing definitive surgery or have had surgical resection within the last 4 months. * Prior surgery is allowed if they have not received additional tumor directed treatment. * \>= 18 years old * Must speak and be able to read English fluently. * Plan to continue to care in neuro-oncology at UCSF * Must be receiving MRI scans. Exclusion Criteria: * Diagnosis or evidence of any of the following: * • Primary brain tumor classified as CNS WHO Grade 4 * • Extra-axial disease (i.e. meningioma) * Are not able to comply with study and/or follow-up procedures * Have acute psychiatric issues (suicidality, active psychosis, gravely disabled)