Effects of NLP Chatbots on Loneliness, Depression, and Quality of Life Among Older Adults: A Systematic Review

Loneliness is widespread globally, especially among older adults. Chatbots based on natural language processing (NLP) have demonstrated unique potential for alleviating this problem because of their high accessibility, low cost, and spatiotemporal flexibility; however, systematic reviews that comprehensively assess their effectiveness and feasibility are lacking.