Introduction
depression, voice, mild-to-moderate depression, anxiety
The prevalence of depression in the United States has increased multiple fold to approximately 32% during the COVID-19 pandemic [With the integration of voice assistants in mobile devices, their use is pervasive; recent reports have highlighted that nearly a third of search queries rely on voice input [Relying on user-centered design principles, and aligned with the treatment fidelity of PST, we developed a virtual voice-based coach, Lumen, that delivers PST for patients with mild-to-moderate depression and/or anxiety [