Table 2.
Details of the interventions
| Study (year) | Intervention | Intensity, color, and duration of each intervention session | Numbers and duration of intervention | Timing of intervention | |
|---|---|---|---|---|---|
| Yorguner Küpeli et al. (2018)32 | Intervention (16) | BLT | 10 000 lx, 30 min, color: NA | 2 weeks | 08.00–10.00 hours |
| Control (16) | Dim light | Less than 500 lx, 30 min, color: NA | |||
| Colombo et al. (2000)34 | Intervention (42) | BLT and TSD | 2500 lx, 30 min, white light | 6 days | 03.00 hours during the TSD night, in the morning after the recovery sleep, and half an hour after awakening, between approximately 08.00 hours and 09.00 hours |
| Control (38) | Dim light and SD | 150 lx, 30 min, red light | |||
| Sit et al. (2018)17 | Intervention (23) | BLT | 7000 lx, 15–60 min, white light (4000 K) | 6 weeks | 12.00–14.30 hours |
| Control (23) | Dim light | 50 lx, 15–60 min, red light | |||
| Dauphinais et al. (2012)20 | Intervention (18) | BLT | 7000 lx, 7.5–45 min, white light (4000 K) | 8 weeks | In the morning |
| Control (20) | LDA | NA | |||
| Zhou et al. (2018)18 | Intervention (37) | BLT | 5000 lx, 60 min, blue (10 000 K) | 2 weeks | 06.30–09.00 hours |
| Control (37) | Dim light | Less than 100 lx, 60 min, Color: red | |||
| Franchini et al. (2009)33 | Intervention (17) | BLT + fluvoxamine | 10 000 lx, 30 min, color: NA | From day 2 to the end of week 6 | Between 04.45– 08.45 hours, depending on individual chronotype, measured by MEQ |
| Control (10) | Fluvoxamine alone | Not applicable | Not applicable |
BLT, bright light therapy; LDA, low‐density negative air ionization; MEQ, Morningness–Eveningness Questionnaire; NA, not available; TSD, total sleep deprivation.