“…Given the limitations of existing assessments, non-verbal alternatives of depression screening are desirable, and may complement and facilitate screening accuracy of verbal assessments. Although not widely adopted in clinical settings, various non-verbal depression screening methods have already been explored, including facial perception behavioural assessment (Guekht et al, 2013), eye gaze pattern analysis (Alghowinem et al, 2015), facial visual features and voice analysis (Pampouchidou et al, 2019;Scibelli et al, 2018), and there's a plethora of research on identifying depression using neuroimaging data and machine-learning (ML) (Janssen et al, 2018). A common issue with the non-verbal depression screening methods such as EEG and MRI are the high cost (CostHelper, 2021;Sahu et al, 2020) NON-VERBAL DEPRESSION SCREENING 4 with poor interpretability (Schnack, 2019).…”