The general objectives of this study are to build a proof-of-concept, speech-based, digital biomarker for identifying the presence and tracking the severity of psychiatric disease.

The purpose of this study is to gather longitudinal data to examine how speech features and symptoms change over different intervals of time and the reliability of repeated, high frequency test administration. Participants will complete a variety of speech and language tasks using the Winterlight Assessment (iOS app) everyday for 30 days. The following is the list of assessments that participants will complete; 1) Daily assessment of mood, 2) Winterlight assessment which contains a series of verbal response tasks where participants are recorded through a tablet app, and 3) Clinical assessments.

Inclusion Criteria:

• Male and Female adults aged 18 to 95.
• English as a first language, or English as a second language with conversational proficiency.
• Own an iOS device (iPhone or iPad) and willing to install the study app.
• A reliable (cellular or WiFi) home internet connection and accessible email address

Exclusion Criteria:

• Residence outside of Canada or the United States.
• Clinically significant vision impairment (corrected vision is acceptable).
• Clinically significant hearing impairment (use of hearing aids is acceptable)

Anyone who does not have hearing or vision impairment.