This document summarizes a presentation on investigating cognitive function in geriatric mood disorders. The following key points were discussed: - Major depressive disorder and bipolar disorder are common in older adults and associated with cognitive dysfunction across multiple domains. - A study examined cognitive performance in older adults with MDD or BPAD compared to healthy elders, finding significant deficits in processing speed, executive function, verbal fluency, short-term recall. Illness severity correlated with poorer cognition. - Future directions include examining the effects of medical comorbidities on cognition longitudinally, and exploring imaging biomarkers to further characterize cognitive deficits in mood disorders. This may help develop targeted treatments to improve patient outcomes.