Inclusion Criteria:  Willing to participate, having been provided full information about the study components and details. Native language is English. Has the capacity to provide fully informed consent. Has access to and able to use, or has a caregiver who has access to and able to use a smartphone device running an operation system of iOS 11.0 or later, or Android 7.0 or later. Able to use, or has a caregiver who is able to use a personal computer, notebook or tablet. Has access to a personal computer, notebook or tablet that is (1) Running an operating system of:  macOS X with macOS 10.9 or later; OR Windows 7 or above; AND (2) Capable of audio recording; AND (3) Able to connect to the internet; AND (4) Have access to one of following internet browser software: Internet Explorer version 11 or above; OR Microsoft Edge version 12 or above; OR Firefox version 27 or above; OR Google Chrome version 30 or above; OR Safari version 7 or above.  Exclusion Criteria:  Diagnosis of alcohol or drug use disorder; History or presence of stroke within the past 2 years; Documented history of transient ischemic attack or unexplained loss of consciousness within the last 12 months. At risk of suicide: score of 10 or above on the PHQ scale, and 10 or above on the MINI suicide questionnaire