• Ambulatory vocal acoustics, temporal dynamics, and serious mental illness 

      Cohen, Alex S.; Fedechko, Taylor L.; Schwartz, Elana K.; Le, Thanh P.; Foltz, Peter W.; Bernstein, Jared; Cheng, Jian; Holmlund, Terje Bektesevic; Elvevåg, Brita (Journal article; Tidsskriftartikkel; Peer reviewed, 2019)
      Acoustic analysis of vocal expression offers a potentially inexpensive, unobtrusive, and highly sensitive biobehavioral measure of serious mental illness (SMI)-related issues. Despite literature documenting its use for understanding SMI, prior studies have largely ignored that vocal expression is highly dynamic within individuals over time. We employed ambulatory vocal assessment from SMI outpatients ...
    • Applying speech technologies to assess verbal memory in patients with serious mental illness 

      Holmlund, Terje Bektesevic; Chandler, Chelsea; Foltz, Peter W.; Cohen, Alex S.; Cheng, Jian; Bernstein, Jared C.; Rosenfeld, Elizabeth P.; Elvevåg, Brita (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-11)
      Verbal memory deficits are some of the most profound neurocognitive deficits associated with schizophrenia and serious mental illness in general. As yet, their measurement in clinical settings is limited to traditional tests that allow for limited administrations and require substantial resources to deploy and score. Therefore, we developed a digital ambulatory verbal memory test with automated ...
    • A Dynamic Method, Analysis, and Model of Short-Term Memory for Serial Order with Clinical Applications 

      Cheng, Sophia; Cohen, Alex S.; Holmlund, Terje Bektesevic; Foltz, Peter W.; Cheng, Jian; Bernstein, Jared; Rosenfeld, Elizabeth; Elvevåg, Brita (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-06)
      This study examined the robustness of a traditional memory task when moved out of controlled traditional settings. A letter recall task was designed to be self-administered via a smart-device which assessed recall by participants’ writing their responses on the device. This enabled collection of both the letter recalled and the timing of this recall such that the temporal dynamics could be examined. ...
    • Moving psychological assessment out of the controlled laboratory setting: Practical challenges 

      Holmlund, Terje Bektesevic; Foltz, Peter W.; Cohen, Alex S.; Johansen, Håvard D.; Sigurdsen, Randi; Fugeli, Pål; Bergsager, Dagfinn; Cheng, Jian; Bernstein, Jared; Rosenfeld, Elizabeth; Elvevåg, Brita (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03)
      Behavioral assessment using smart devices affords novel methods, notably remote self-administration by the individuals themselves. However, this new approach requires navigating complex legal and technical terrain. Given the limited empirical data that currently exists, we provide and discuss anecdotes of the methodological, technical, legal, and cultural issues associated with an implementation in ...
    • Psychiatric Risk Assessment from the Clinician´s Perspective: Lessons for the Future 

      Cohen, Alex S.; Fedechko, Taylor L.; Schwartz, Elana K.; Le, Thanh P.; Foltz, Peter W.; Bernstein, Jared; Cheng, Jian; Rosenfeld, Elizabeth; Elvevåg, Brita (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-01)
      Accurate prediction of risk-states in Serious Mental Illnesses (SMIs) is critical for reducing their massive societal burden. Risk-state assessments are notably inaccurate. Recent innovations, including widely available and inexpensive mobile technologies for ambulatory “biobehavioral” data, can reshape risk assessment. To help understand and accelerate clinician involvement, we surveyed 90 ...
    • Updating verbal fluency analysis for the 21st century: Applications for psychiatry 

      Holmlund, Terje Bektesevic; Cheng, Jian; Foltz, Peter W.; Cohen, Alex S.; Elvevåg, Brita (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-07)
      Evaluating patients’ verbal fluency by counting the number of unique words (e.g., animals) produced in a short-period (e.g., 1–3 min) is one of the most widely employed cognitive tests in psychiatric research. We introduce new methods to analyze fluency output that leverage modern computational language technology. This enables moving beyond simple word counts to charting the temporal dynamics of ...
    • Using Automated Speech Processing for Repeated Measurements in a Clinical Setting of the Behavioral Variability in the Stroop Task 

      Holmlund, Terje Bektesevic; Cohen, Alex S; Cheng, Jian; Foltz, Peter W.; Bernstein, Jared; Rosenfeld, Elisabeth; Laeng, Bruno; Elvevåg, Brita (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-04)
      The Stroop interference task is indispensable to current neuropsychological practice. Despite this, it is limited in its potential for repeated administration, its sensitivity and its demands on professionals and their clients. We evaluated a digital Stroop deployed using a smart device. Spoken responses were timed using automated speech recognition. Participants included adult nonpatients (N = ...