Neurobiological Mechanisms and Clinical Outcomes of Art therapy : A Systematic Review

Art therapy, encompassing modalities such as music, visual arts, dance/movement, drama, and poetry, has increasingly been recognized as a powerful adjunctive treatment within neuroscience and medicine. Emerging evidence from neuroimaging, neurochemical, and psychophysiological studies reveals that engagement with the arts modulates brain connectivity, neuroplasticity, and affective regulation. This systematic review synthesizes research published between 2000 and 2025 to elucidate the neurobiological and clinical mechanisms underlying art-based interventions. Following PRISMA guidelines, studies were identified across PubMed, Scopus, and PsycINFO databases, focusing on randomized controlled trials, neuroimaging investigations, and meta-analyses.  
Findings demonstrate that art-making activates dopaminergic reward pathways, enhances prefrontal–limbic connectivity, and decreases cortisol and amygdala hyperactivation associated with stress and trauma. Music and dance therapies, in particular, promote sensorimotor integration and cognitive flexibility through entrainment and synchronization mechanisms. Visual and expressive arts facilitate emotional regulation and self-concept coherence, while drama and poetry therapies enhance narrative integration and autobiographical memory. Collectively, the results suggest that art therapy induces both neurochemical modulation 
(dopamine, serotonin, oxytocin) and structural plasticity (white matter integrity, cortical thickness). Clinically, these effects translate into significant improvements in depression, PTSD, neurodegenerative disorders, and chronic pain.  
The review concludes that art-based interventions represent a unique biopsychosocial modality bridging neuroscience, psychology, and medicine. Integrative neuroimaging and longitudinal studies are recommended to further delineate causal pathways between creative engagement and neurobiological change.  
Keywords: art therapy, neuroscience, neuroplasticity, music therapy, dance movement therapy, visual arts, drama therapy, poetry therapy, medical humanities, cortisol regulation