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Cognitive Neuroscience

FIU Electronic Theses and Dissertations

Cannabis

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Neurobiological Impact Of Hiv Infection And Chronic Cannabis Use, Jessica Shannon Flannery May 2021

Neurobiological Impact Of Hiv Infection And Chronic Cannabis Use, Jessica Shannon Flannery

FIU Electronic Theses and Dissertations

Neuroimaging research has identified brain alterations linked with the human immunodeficiency virus (HIV) that contribute to cognitive declines characterizing the disease. Given cannabis’s (CB’s) anti-inflammatory properties, use prevalence among people living with HIV (PLWH), and impact on neurocognition, my dissertation utilizes a between-groups study design to interrogate separate and interactive effects of HIV and CB on fMRI measures of brain activity. We investigate (1) task-based brain activity at the regional-level, (2) insular resting-state functional connectivity (rsFC) at the circuit-level, and (3) large-scale brain network interactions at the systems-level. Participants (N=114) were stratified into four groups (HIV+/CB+; HIV+/CB-; HIV-/CB+; HIV-/CB-) and …