Despite the growing international innovations for visual arts interventions in
dementia care, limited attention has been paid to their theoretical basis. In
response, this paper explores how and why visual art interventions in dementia
care influence changes in outcomes. The theory building process consists of a
realist review of primary research on visual art programmes. This aims to
uncover what works, for whom, how, why and in what circumstances. We undertook a
qualitative exploration of stakeholder perspectives of art programmes, and then
synthesised these two pieces of work alongside broader theory to produce a
conceptual framework for intervention development, further research and
practice. This suggests effective programmes are realised through essential
attributes of two key conditions (provocative and stimulating aesthetic
experience; dynamic and responsive artistic practice). These conditions are
important for cognitive, social and individual responses, leading to benefits
for people with early to more advanced dementia. This work represents a starting
point at identifying theories of change for arts interventions, and for further
research to critically examine, refine and strengthen the evidence base for the
arts in dementia care. Understanding the theoretical basis of interventions is
important for service development, evaluation and implementation.