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Table 11 Correlation between IQ and tract-specific measurements

From: White matter connectivity in children with autism spectrum disorders: a tract-based spatial statistics study

 

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

Statistic

p value

r value

p value

r value

p value

CC

-.005

.98

.26

.47

-.06

.79

.10

.77

.13

.56

.04

.91

Cing left

.013

.95

-.22

.54

-.13

.55

.33

.34

.22

.31

.34

.27

Cing right

.15

.49

-.09

.80

-.12

.61

.34

.34

.18

.42

.17

.63

DAF left

-.17

.44

.39

.29

-.03

.88

.96

< .001**

-.06

.79

.56

.12

DAF right

-.35

.10

.41

.24

-.05

.82

-.17

.84

-.27

.19

-.14

.69

IAAF left

.07

.75

.17

.64

.26

.23

-.08

.82

.19

.39

-.34

.34

IAAF right

.10

.65

-.07

.84

.26

.24

.06

.87

.23

.30

.15

.68

IPAF left

-.15

.50

.05

.89

.29

.17

.19

.56

-.05

.81

.52

.12

IPAF right

.09

.66

-.28

.44

-.002

.99

.15

.69

.20

.35

-.03

.94

 

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

.03

.89

-.24

.51

-.18

.42

.04

.92

    

Cing left

-.23

.31

.38

.28

.10

.66

.02

.94

    

Cing right

-.20

.37

.07

.84

.33

.13

-.15

.68

    

DAF left

-.06

.83

.05

.89

-.36

.10

.06

.83

    

DAF right

-.05

.83

.06

.88

-.01

.98

.20

.60

    

IAAF left

.07

.75

-.39

.26

-.02

.91

-.81

.82

    

IAAF right

.10

.65

-.02

.95

-.01

.98

.43

.21

    

IPAF left

-.18

.41

-.09

.79

.10

.63

-.25

.48

    

IPAF right

.13

.55

-.08

.82

-.02

.92

.06

.87

    
 

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

-.13

.56

-.17

.63

-.12

.59

.23

.52

    

Cing left

-.14

.54

.66

.04*

.19

.41

-.29

.42

    

Cing right

.19

.39

-.05

.89

-.18

.43

-.27

.44

    

DAF left

-.03

.89

.07

.84

.07

.75

.07

.84

    

DAF right

-.18

.47

-.13

.73

.05

.83

.19

.63

    

IAAF left

-.06

.79

-.39

.27

-.05

.82

-.17

.64

    

IAAF right

-.27

.23

.42

.23

-.34

.12

.33

.35

    

IPAF left

-.05

.81

-.20

.58

.16

.47

-.22

.55

    

IPAF right

-.34

.11

.001

.99

.14

.51

-.14

.69

    
  1. 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.
  2. * Statistically significant at the threshold uncorrected p < .05.
  3. ** Significance level at the threshold uncorrected p < .01.
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BMC Neurology

ISSN: 1471-2377

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