DTI Brain Imaging Data

Diffusion Tensor Imaging (DTI) data comparing 6 dyslexic children with 6 normal controls, from Figures 15.9 and 15.10. Z scores were computed at 15,443 three-dimensional brain coordinates (voxels).

Format

A data frame with 15443 rows and 4 variables:

x

Voxel coordinate: back to front

y

Voxel coordinate: left to right

z

Voxel coordinate: bottom to top

Zscore

Z score comparing dyslexic vs normal controls at this voxel

Source

https://hastie.su.domains/CASI_files/DATA/DTI.csv

References

Efron, B. and Hastie, T. (2016). Computer Age Statistical Inference. Cambridge University Press, Figures 15.9 and 15.10.

Examples

data(DTI)
str(DTI)
#> 'data.frame':	15443 obs. of  4 variables:
#>  $ x     : int  33 34 35 36 32 33 34 35 36 37 ...
#>  $ y     : int  17 17 17 17 18 18 18 18 18 18 ...
#>  $ z     : int  24 24 24 24 24 24 24 24 24 24 ...
#>  $ Zscore: num  -2.016 -0.802 -0.525 -0.382 0.763 ...