Study | Age in years | Participant groups | General IQ (SD) | Matching criteria | Working memory tests (maximum load) | ASD impaired? |
---|---|---|---|---|---|---|
Ozonoff and Strayer (2001) [11] | 7-18 | (n = 25) Autism | 96.3 (17.8) | Age | Running memory task (2) | N |
(n = 15) TS | 99.0 (11.4) | Gender | Spatial memory span (5) | |||
(n = 15) TYP | 107.1 (10.5) | IQ | Box search task (5) | |||
Geurts et al. (2004) [2] | 6-13 | (n = 41) HFA | 98.3 (18.4) | Age | SoP (12) | N |
(n = 54) ADHD | 99.5 (11.5) | Gender | ||||
(n = 41) TYP | 111.5 (18.0) | |||||
Goldberg et al. 2005 [55] | 8-12 | (n = 17) HFA | 96.5 (15.9) | Age | CANTAB SWM (8) | Y |
(n = 21) ADHD | 113.8 (10.3) | |||||
(n = 32) TYP | 112.6 (12.1) | |||||
Landa and Goldberg (2005) [54] | 7-17.5 | (n = 19) HFA | 109.7 (15.8) | Age | CANTAB SWM (8) | Y |
(n = 19) TYP | 113.4 (14.3) | Gender | ||||
IQ | ||||||
Williams et al. (2005) [52] | 8-16 | (n = 24) HFA | 109.7 (16.1) | Age | WRAML FW (6) | Y |
(n = 44) TYP | 110.0 (10.7) | IQ | ||||
Happé et al. (2006) [47] | 8-16 | (n = 32) HFA, AS | 99.7 (18.7) | Age | CANTAB SWM (8) | N |
(n = 30) ADHD, HD | 99.1 (17.1) | Gender | ||||
(n = 32) TYP | 106.8 (13.4) | IQ | ||||
Verté et al. (2006) [12] | 6-13 | (n = 50) HFA | 98.2 (17.3) | Age | SoP (12) | Y |
(n = 37) AS | 105.2 (16.3) | Gender | ||||
(n = 25) PDD-NOS | 98.3 (14.4) | |||||
(n = 47) TYP | 112.1 (9.7) | |||||
Williams et al. (2006) [51] | 8-16 | (n = 38) HFA | 103.8 (14.3) | Age | WRAML FW (6) | Y |
(n = 38) TYP | 107.2 (9.4) | IQ | ||||
Luna et al. (2007) [50] | 8-33 | (n = 61) HFA | 110.7 (16.8) | Age | ODR | Y |
Gender | ||||||
(n = 61) TYP | 111.0 (13.8) | |||||
 |  | IQ | ||||
Steele et al. (2007) [49] | 8-29 | (n = 29) HFA | 107.8 (11.0) | Age | CANTAB SWM (8) | Y |
(n = 29) TYP | 110.8 (9.9) | IQ | ||||
McGonigle-Chalmers et al. (2008) [57] | 6.8-13.9 | (n = 20) Autism, AS | * 76 (19.9) | Age | Size sequencing task | Y |
(n = 20) TYP | * 90 (8.6) | |||||
Sinzig et al. (2008) [48] | 6-18 | (n = 20) HFA, AS | 112 (17.7) | Gender | CANTAB SWM (8) | N |
(n = 20) HFA, AS + ADHD | 103 (13.0) | |||||
(n = 20) ADHD | 98 (13.4) | |||||
(n = 20) TYP | 113 (11.9) | |||||
Corbett et al. (2009) [53] | 7-12 | (n = 18) ASD | 94.2(17.8) | Age | CANTAB SS (9) | Y |
(n = 18) ADHD | 105.2(12.8) | CANTAB SWM (8) | ||||
 |  | (n = 18) TYP | 112.2(14.8) |  |  |  |