Table 10.
Correlation between age and tract-specific measurements
| |
Number of streamlines |
Length of streamlines |
Volume |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |
ASD |
Controls |
ASD |
Controls |
ASD |
Controls |
||||||
| r value | p value | r value | p value | r value | p value | r value | p value | r value | p value | r value | p value | |
| CC |
-.07 |
.77 |
.07 |
.47 |
.05 |
.82 |
.22 |
.54 |
-.14 |
.53 |
.31 |
.39 |
| Cing left |
-.13 |
.30 |
-.22 |
.54 |
.09 |
.68 |
-.07 |
.85 |
-.18 |
.43 |
-.16 |
.66 |
| Cing right |
-.05 |
.82 |
-.09 |
.80 |
.11 |
.61 |
.11 |
.76 |
-.15 |
.50 |
-.55 |
.09 |
| DAF left |
.25 |
.25 |
.39 |
.29 |
.30 |
.16 |
-.05 |
.94 |
.25 |
.25 |
.38 |
.31 |
| DAF right |
.47 |
.02* |
.41 |
.24 |
.15 |
.48 |
-.08 |
.82 |
.46 |
.03* |
.39 |
.26 |
| IAAF left |
.23 |
.29 |
.17 |
.64 |
.01 |
.02 |
.46 |
.18 |
.15 |
.49 |
.39 |
.27 |
| IAAF right |
.41 |
.05 |
-.07 |
.84 |
.95 |
.94 |
-.21 |
.56 |
.32 |
.14 |
.18 |
.62 |
| IPAF left |
.28 |
.19 |
.07 |
.89 |
-.15 |
.49 |
.61 |
.06 |
.12 |
.59 |
.20 |
.57 |
| IPAF right |
-.57 |
.005** |
-.28 |
.44 |
-.29 |
.17 |
.29 |
.40 |
-.49 |
.02* |
.005 |
.99 |
| |
Fractional anisotropy |
Mean diffusivity |
|
|
|
|
||||||
| |
ASD |
Controls |
ASD |
Controls |
|
|
|
|
||||
| |
r value |
p value |
r value |
p value |
r value |
p value |
r value |
p value |
|
|
|
|
| CC |
-.27 |
.22 |
.37 |
.28 |
-.12 |
.58 |
-.69 |
.03* |
|
|
|
|
| Cing left |
.05 |
.82 |
.44 |
.19 |
-.05 |
.81 |
-.47 |
.17 |
|
|
|
|
| Cing right |
.31 |
.15 |
.25 |
.49 |
-.15 |
.49 |
-.72 |
.02* |
|
|
|
|
| DAF left |
.21 |
.35 |
.33 |
.43 |
.08 |
.73 |
-.96 |
<.001** |
|
|
|
|
| DAF right |
.008 |
.97 |
.003 |
.99 |
-.27 |
.27 |
-.71 |
.03* |
|
|
|
|
| IAAF left |
.04 |
.85 |
.57 |
.08 |
-.36 |
.09 |
-.88 |
.001* |
|
|
|
|
| IAAF right |
.14 |
.52 |
-.22 |
.54 |
-.25 |
.25 |
-.60 |
.07 |
|
|
|
|
| IPAF left |
.22 |
.31 |
.18 |
.62 |
-.39 |
.06 |
-.85 |
.002** |
|
|
|
|
| IPAF right |
-.24 |
.26 |
-.25 |
.49 |
-.35 |
.09 |
-.67 |
.03* |
|
|
|
|
| |
Parallel diffusivity |
Perpendicular diffusivity |
|
|
|
|
||||||
| |
ASD |
Controls |
ASD |
Controls |
|
|
|
|
||||
| |
r value |
p value |
r value |
p value |
r value |
p value |
r value |
p value |
|
|
|
|
| CC |
-.32 |
.14 |
-.10 |
.78 |
.07 |
.77 |
-.36 |
.30 |
|
|
|
|
| Cing left |
.13 |
.56 |
-.38 |
.28 |
-.06 |
.79 |
-.66 |
.04* |
|
|
|
|
| Cing right |
.09 |
.69 |
-.65 |
.04* |
.07 |
.75 |
-.73 |
.02* |
|
|
|
|
| DAF left |
-.07 |
.77 |
-.90 |
.002* |
-.31 |
.16 |
-.78 |
.02* |
|
|
|
|
| DAF right |
.12 |
.63 |
-.14 |
.73 |
-.19 |
.42 |
-.01 |
.98 |
|
|
|
|
| IAAF left |
-.03 |
.17 |
-.33 |
.35 |
-.31 |
.16 |
-.23 |
.52 |
|
|
|
|
| IAAF right |
-.05 |
.82 |
-.55 |
.09 |
-.20 |
.37 |
-.58 |
.08 |
|
|
|
|
| IPAF left |
-.37 |
.12 |
-.87 |
.001** |
-.38 |
.07 |
-.71 |
.02* |
|
|
|
|
| IPAF right | -.03 | .88 | -.58 | .08 | -.08 | .72 | -.09 | .79 | ||||
ASD: Autism Spectrum Disorder; CC: corpus callosum; Cing: cingulum; DAF: direct segment of the arcuate fasciculus; IAAF: indirect anterior segment of the arcuate fasciculus; IPAF: indirect posterior segment of the arcuate fasciculus. r: Pearson’s correlation coefficient.
* Statistically significant at the threshold uncorrected p < .05.
** Significance level at the threshold uncorrected p < .01.