Fig. 1. The LifeShirt system: design of garment and interface with digital recorder.

Fig. 2. Outline of sensors and information flow.

Fig. 3. VivoLog electronic diary: example displays. Left panel: general recording mode, with button for starting electronic diary entries; right panel: 1 (not at all) to 10 (all the time) rating scale for sadness during the day, used in a study with patients with major depressive disorder.

Fig. 4. VivoLogic analysis software example display. Left traces are 1-min medians and quartile ranges of a selected subset of analyzed variables of significance during a night recording. Right traces represent raw waveforms of a selected 1-min segment of the data (Vt, calibrated tidal volume curve; RC, rib cage; AB, abdomen; Br/M, times of breath onsets; ECG, electrocardiogram; RW, times of R-waves; HR, heart rate, ACC, acceleromter).

Fig. 5. Annotated ambulatory recording of client with a diagnosis of social phobia before, during and after a 10-min business meeting presentation. A small subset of recorded and analyzed parameters is diplayed: M%RC, minute-by-minute median of rib cage contribution to tidal volume; vent, breath-by-breath continuous estimate of minute ventilation; HR, beat-by-beat continuous estimate of heart rate; AccM, motion component of accelerometry. Note that heart rate changes in anticipation and during the presentation are far out of proportion to the minimal ongoing physical activity and thus clearly emotion triggered.

Parameters extracted from LifeShirt system recordings and their significance