Table 1.
Summary of the findings from DTI studies that were published on dyslexia and that were included in Fig. 1.
Study | Method | Sample
|
Mean age
|
Coordinates of white matter FA reductions poor readers versus normal readers
|
Colour in Fig. 1 | ||||
---|---|---|---|---|---|---|---|---|---|
Poor readers | Normal readers | Poor readers | Normal readers | x | y | z | |||
Klingberg et al., 2000 a | VB analysis | 6 | 11 | 31.5 ± 5.3 | 23.1 ± 1.4 | −26 | −22 | 29 | RED |
Niogi & McCandliss, 2006 | Region of interest | 8 | 7 | 8.31 ± 1.19 | 7.75 ± .66 | −28 | −11 | 26 | CYAN |
−24 | −12 | 36 | |||||||
Steinbrink et al., 2008 b | VB analysis | 8 | 8 | 20.1 ± 3.9 | 23.7 ± 4.3 | −21 | 27 | 6 | GREEN |
−30 | 0 | 9 | |||||||
−33 | −7 | 6 | |||||||
−24 | −87 | 15 | |||||||
30 | 0 | 15 | |||||||
Rimrodt, Peterson, Denckla, Kaufmann, & Cutting, 2010 b | VB analysis | 7 | 9 | 11 ± 3 | 11 ± 2 | −54 | 4 | 30 | VIOLET |
−46 | −32 | 18 | |||||||
58 | 6 | 34 | |||||||
−44 | 0 | −10 | |||||||
−50 | −16 | −28 | |||||||
34 | −32 | 52 | |||||||
46 | −70 | −16 | |||||||
18 | 20 | −8 | |||||||
2 | −4 | −22 | |||||||
58 | −48 | 10 | |||||||
Richards et al., 2008 b | Tract-Based | 14 | 7 | 30–45 (age range) | −14 | −1 | 36 | PINK | |
Spatial Statistics | −17 | 11 | 2 | ||||||
−16 | −4 | 40 | |||||||
−18 | −47 | 33 | |||||||
−46 | −28 | −12 | |||||||
−37 | −23 | 32 | |||||||
−21 | 9 | 20 | |||||||
Keller & Just, 2009 b | VB analysis | 33 | 17 | 10 ± 1.1 | 9.8 ± 1 | −10 | 20 | 38 | BLUE |
Talairach coordinates.
Montreal Neurological Institute coordinates.