off the map → Mu-Jung “MJ” Cho|卓牧融
I study what people actually do on screens — media repertoires, informational threat, and the psychology of everyday digital life — using dense digital-trace data and computational methods.
Four threads
Screenomics
Screen-by-screen records of smartphone life — the capture platform, the pipeline, and the measurement work that turns 250M+ screenshots into behaviour.
Screens and wellbeing
What dense traces say about mood, anxiety and risk — person by person rather than on average, in ordinary weeks and during disasters.
Why one screen follows another
Media selection and production as sequences: emotional valence, informational content, and the timing of what people choose to see and make.
Information environments
Deception, literacy and perceived informational threat — who is susceptible to false job ads, and how fragmented media diets shape trust and connectedness in Taiwan.
5 sbetween screenshots — the resolution of a screenome
n = 1the unit of analysis — person-specific models before population averages
20refereed articles and proceedings
Why screenomics
Screen time is a single number standing in for thousands of distinct experiences. Screenomics replaces it with the sequence itself — what was on the screen, in what order, for whom — so that content, timing, and context become measurable rather than assumed.