Research Article

A Chan Dietary Intervention Enhances Executive Functions and Anterior Cingulate Activity in Autism Spectrum Disorders: A Randomized Controlled Trial

Table 2

Mean performance in executive functioning of the control and experimental groups at before and after one-month period.

Control group ( ) valueEffect sizeExperimental group ( ) valueEffect size
BeforeAfterBeforeAfter

Attention
 D2: concentration performance78.67
(41.33)
98.22
(61.23)
0.0740.535+92.86
(50.47)
109.14
(53.00)
0.0590.690+
 Go/No-go: omission#20.20
(22.08)
25.00
(30.67)
0.1700.31938.00
(43.06)
31.80
(38.32)
0.1090.421
Mental flexibility
 FPT: unique design15.67
(9.29)
16.22
(8.29)
0.3200.13712.56
(11.36)
20.33
(15.84)
0.004**1.204++
 CCTT-T2: time (in seconds)#94.09
(72.17)
67.18
(32.64)
0.0780.562+132.08
(98.00)
78.73
(51.44)
0.017*0.936++
Response inhibition
 D2: commission#22.00
(27.24)
21.44
(29.05)
0.4610.03423.57
(38.21)
14.86
(32.32)
0.016*1.047++
 Go/No-go: commission#13.00
(11.30)
11.40
(7.40)
0.2160.26113.27
(11.47)
15.27
(13.66)
0.2040.260
Planning
 ToC: achievement score5.70
(2.41)
6.20
(3.97)
0.3440.1316.25
(3.41)
8.88
(5.28)
0.039*0.733+

FPT: five-point test; D2: D2 Test of Attention; CCTT-T2: time: total completion time in trial 2 of the Children’s Color Trails Test; ToC: Tower of California Test. Standard deviations are in parenthesis. #Lower value indicates better performance; * , ** ; +medium effect size, ++large effect size.