Table 1. Description of studies on general inhibitory control in bulimic-type eating disorders.
| Study | Subject | Female (percentage) | Age (years) mean (SD) | BMI (kg/m2) mean (SD) | Educational level | Co-morbidity/Treatment/Medication | Task/Outcome variable | Findings | Qualityscore (x/10) |
| Alvarez-Moya et al. 2009 | BN (15) | 100% | 33.6 (8.8) | 26.3 (6) | ns | NO/YES/YES | Stroop/colour-word interference index | ns | 7 |
| HC (15) | 100% | 35.5 (13.8) | NR | ||||||
| Ben-Tovim et al. 1989 | BN(19) | 100% | 26.9 (10) | 22.61 (4.7) | NR | NR/YES/NR | Stroop/colour-word interference index | ns | 6 |
| HC (38) | 100% | 22.8 (4.5) | 21.31 (2.5) | ||||||
| Ben-Tovim et al. 1991 | BN (27) | NR | 26.8 (9.1)* | 23.3 (4.6)* | NR | NR/YES/NR | Stroop/colour-word interference index | ns | 4 |
| HC-h (29) | 100% | 13.6 (1.1) | 21.8 (5.7) | ||||||
| HC-l (37) | 100% | 14.0 (1.3) | 19.7 (3.5)* | ||||||
| Black et al. 1997 | BN (16) | 100% | 23.8 (NR) | 23 (NR) | NR | NR/NO/NR | Stroop/colour-word time | ns | 6 |
| HC (29) | 100% | 21.2 (NR) | 22.6 (NR) | ||||||
| Brand et al. 2007 | BN (14) | 100% | 21.9 (3.3) | 21.6 (3.8) | ns | NO/NO/NO | Stroop/colour-word interference index | ns | 9 |
| HC (14) | 100% | 21.6 (2.9) | 21.3 (2.3) | ||||||
| Bruce et al. 2003 (a) | BN (12) | 100% | 25.6 (5.9) | 21.7 (2.3) | NR | YES/YES/NR | No-go/commission errors | BN≠HC* | 5 |
| HC (25) | 100% | 24.6 (7.1) | 22.0 (1.9) | ||||||
| Bruce et al. 2003 (b) | BN (33) | 100% | 24.5 (6.7) | 22.1 (3.2) | NR | YES/YES/NR | No-go/commission errors | ns | 5 |
| HC (25) | 100% | 24.6 (7.1) | 22.0 (1.9) | ||||||
| Claes et al. 2006 (a) | AN-b (14) | 100% | 21.7 (6.8) | NR | NR | NR/YES/NR | Stop signal/SSRT | ns | 5 |
| HC (83) | 100% | 20.1 (3.1) | NR | ||||||
| Claes et al. 2006 (b) | BN (22) | 100% | 22.7 (5.8) | NR | NR | NR/YES/NR | Stop signal/SSRT | ns | 5 |
| HC (83) | 100% | 20.1 (3.1) | NR | ||||||
| Cooper et al. 1992 | BN (36) | 100% | 24.3 (6.2) | 21.8 (2.2) | NR | NR/YES/NR | Stroop/colour-word interference index | ns | 6 |
| HC (18) | 100% | 22.1 (3.5) | 20.9 (1.5) | ||||||
| Darcy et al. 2012 | BN (23) | 100% | 16.3(1.2) | 109.1(18.2) # | BN<HC* | YES/NR/YES | Stroop/color-word interference index | ns | 7 |
| HC (22) | 100% | 15.4(1.9) | 105.7(12.8) # | ||||||
| Davidson et al. 2002 | BN (17) | 100% | 25.5 (6.4) | 21.2 (3.2) | NR | NR/YES/NR | Stroop/colour-word interference index | ns | 6 |
| HC (18) | 100% | 24.9 (6.1) | 21.1 (2) | ||||||
| Duchesne et al. 2010 | BED (38) | 76.3% | 33.3 (5.0) | 35.9 (2.9) | ns | YES/YES/NO | Stroop/colour-word time | ns | 7 |
| HC (38) | 89.5% | 35.4 (7.9) | 36.6 (3.8) | ||||||
| Fairburn et al. 1991 | BN (24) | 100% | 21.3 (3.8) | 22.6 (3.1) | NR | NR/NR/NR | Stroop/colour-word interference index | BN≠HC* | 6 |
| HC (50) | 100% | 20.0 (1.1) | 20.9 (1.6) | ||||||
| Galimberti et al. 2012 (a) | AN-b (12) | 100% | 27.1 (8.9) | 15.1 (1.6)* | ns | NO/YES/YES | Stop signal/SSRT | AN-b≠HC* | 7 |
| HC (29) | 100% | 26.0 (8.4) | 19.2 (1.6) | ||||||
| Galimberti et al. 2012 (b) | BN (16) | 100% | 25.3 (5.8) | 20.4 (3.7) | ns | NO/YES/YES | Stop signal/SSRT | ns | 8 |
| HC (29) | 100% | 26.0 (8.4) | 19.2(1.6) | ||||||
| Kemps et al. 2010 | BN (13) | 100% | 22.2 (3.9) | 23.6 (2.6) | ns | NO/YES/YES | Stroop/colour-word interference index | BN≠HC* | 9 |
| HC (13) | 100% | 20.8 (3.4) | 22.4 (3.4) | HSCT/total score | BN≠HC* | ||||
| ELF/total score | BN≠HC* | ||||||||
| MFFT/impulsivity score | BN≠HC* | ||||||||
| Marsh et al. 2009 | BN (20) | 100% | 25.7 (7.0) | 22.9 (2.3) | ns | NO/YES/YES | SSIT/RT interference | BN≠HC* | 8 |
| (outlier) | HC (20) | 100% | 26.4 (5.7) | 22.2 (2.2) | |||||
| Marsh et al. 2011 | BN (18) | 100% | 18.4 (2.1) | 22.0 (2.0) | ns | YES/NO/YES | SSIT/RT interference | ns | 7 |
| HC (18) | 100% | 17.3 (2.4) | 22.0 (1.9) | ||||||
| Rosval et al. 2006 (a) | AN-b (16) | 100% | 25.6 (7.7) | 16.7 (1.7)* | NR | NR/YES/NR | No-go/commission errors | AN-b≠HC* | 5 |
| HC (58) | 100% | 24.3 (6.2) | 21.9 (2.2) | ||||||
| Rosval et al. 2006 (b) | BN (65) | 100% | 25.0 (6.4) | 21.3 (1.9) | NR | NR/YES/NR | No-go/commission errors | ns | 6 |
| HC (58) | 100% | 24.3 (6.2) | 21.9 (2.2) | ||||||
| Southgate et al. 2008 | BN (14) | 100% | 25.7 (4.9) | 21.1 (6.7) | ns | NO/YES/NO | MFFT/impulsivity score | ns | 8 |
| HC (26) | 100% | 27.3 (11.5) | 22.0 (3.4) | ||||||
| Van den Eynde et al. 2012 | BN (40) | 100% | 28.3 (8.1) * | 25.2 (7.2) * | BN≠HC * | NR/YES/YES | Stroop/colour-word interference index | ns | 6 |
| HC (65) | 100% | 24.0 (2.6) | 22.2 (3.3) | No-go/commission errors | ns | ||||
| Wu et al. 2013 (a) | BN (16) | 93.8% | 27.1 (10.2) | 22.2 (2.9) | ns | YES/YES/YES | Stop signal/SSRT | BN≠HC* | 8 |
| HC (25) | 96.0% | 26.3 (5.4) | 22.1(2.0) | ||||||
| Wu et al. 2013 (b) | BED (44) | 90.9% | 40.1 (11.6) | 34.0 (5.0) | BED≠HC * | YES/YES/YES | Stop signal/SSRT | ns | 8 |
| HC (39) | 97.4% | 39.8 (11.3) | 35.1 (5.1) |
BN: bulimia nervosa; BED: binge eating disorder; AN-b: anorexia nervosa from the binge/purge subtype; HC: healthy controls; BMI: body mass index;
# : ideal body weight (percentage);
ns: no significant difference between patients and healthy controls;
significant group difference; NR: not reported; SSRT: stop signal reaction time; MFFT: Matching Familiar Figure Test; HSCT: Hayling Sentence Completion Test; ELF: Excluded Letter Fluency test; SSIT: Simon Spatial Incompatibility Task; RT: reaction time.