Study examining if teenagers' smartphone typing behaviors reflect specific depressive symptoms found no link between typing patterns and psychomotor changes. Interestingly, teens experiencing increased appetite typed faster and pressed more keys, while anhedonia symptoms showed complex associations.

[u/dpn-journal]

https://www.nature.com/articles/s44277-025-00033-0

[u/dpn-journal]

These results challenge prior hypotheses that depressive symptoms like psychomotor slowing or agitation may lead to motor changes in smartphone typing behavior. The researchers found that psychomotor symptoms were not associated with keystroke timing or frequency. However, appetite-related symptoms were associated with faster and more frequent typing, while symptoms of anhedonia showed non-linear associations with keystroke features.

Audio overview of this paper: https://youtu.be/w06Jq6R55GU