| Group | Reference | N | Location | Session per Week | Frequency (Hz) | Train Duration (s) | Trains per Session | Intertraininterval (s) | Pulses per session | MT (%) | Cognitive Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Healthy | Vanderhasselt et al. (2006) | 28 | L DLPFC | 1/- | 10 | 4 | 40 | 26.1 | 1560 | 110 | Stroop task |
| Healthy | Vanderhasselt et al. (2007) | 20 | R DLPFC | 1/- | 10 | 4 | 40 | 26.1 | 1560 | 110 | Stroop task |
| Healthy | Hwang et al. (2010) | 17 | L DLPFC | 1/- | 10 | 2 | - | 10 | 900 | 90 | Conners' CPT |
| Dep | Grunhaus et al. (2000) | 20 | L Motor Cortex | 20/4 | 10 | 6 | - | - | 1200 | 90 | TMT-B |
| Dep | Moser et al. (2002) | 19 | L MFG | 5/1 | 20 | 2 | 20 | 60 | - | 80 | TMT-B |
| Dep | Martis et al. (2003) | 15 | L PFC | 15/3 | 10 | 5 | 20 | 30 | 1000 | 110 | Stroop task, SCRT, GP |
| Dep | Hoppner et al. (2003) | 30 | R DLPFC | 10/2 | 1 | 60 | 2 | 180 | - | 110 | MARS |
| L DLPFC | 20 | 2 | 20 | 60 | |||||||
| Dep | Hausmann et al. (2004) | 41 | R, L DLPFC | 10/2 | 1 | 600 | 1 | - | 2600 | 120 | Stroop task |
| 20 | 10 | 10 | 90 | 2000 | 100 | ||||||
| Dep | Boggio et al. (2005) | 25 | L DLPFC | 10/2 | 15 | 5 | 40 | 25 | - | 110 | Stroop task |
| Dep | Kedzior et al. (2012) | - | L DLPFC | 40/3 | 10 | 5 | 40 | 25 | 2000 | 100 | mCST |
| Dep | Myczkowski et al. (2012) | 14 | L DLPFC | 20/4 | 5 | 10 | 25 | 20 | 1250 | 120 | TMT-B, Stroop task |
| PTSD | Boggio et al. (2010) | 30 | R, L DLPFC | 10/2 | 20 | 2 | 40 | 28 | 1600 | 80 | Stroop task |
| Sch | Levkovitz et al. (2011) | 15 | R L PFC | 20/4 | 20 | - | - | - | - | 120 | SOC, SSP, SWM |
| Sch | Guse et al. (2013)* | 47 | L DLPFC | 15/3 | 10 | - | 25 | 30 | 1000 | 110 | N-back test, DAT |
| Dem | Antczak et al. (2018) | 11 | R L DLPFC | 10/2 | 10 | 5 | 20 | 25 | 3000 | 90 | LCT, Stroop task |
Dep, depression; PTSD, posttraumatic stress disorder; Sch, schizophrenia; Dem, dementia; L, left; R, right; DLPFC, dorsolateral prefrontal cortex; MFG, middle frontal gyrus; PFC, prefrontal cortex; CPT, continuous performance task; TMT, trail making test; SCRT, simple and choice reaction time; GP, grooved pegboard; MARS, motor agitation and retardation scale; mCST, modified concept shifting task; SOC, stockings of Cambridge; SSP, spatial span; SWM, spatial working memory; DAT, divided attention task; LCT, Letter Cancellation Test.
*Indicates the inclusion of a healthy comparison group.