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Table 7: Relationship of DTI metrics to cognitive outcome measures^a
DTI Measure Correlation Attention Executive Function Memory Motor Psychomotor/Processing Speed Visuospatial IQ
FA Positive correlation 11 9 14 4 5 4 2
Negative correlation 6 5 2 0 2 0 0
No correlation 2 6 6 1 1 0 6
MD Positive correlation 3 2 2 0 0 1 0
Negative correlation 4 6 7 0 1 3 0
No correlation 1 4 3 1 2 0 0
Note:—IQ indicates intelligence quotient.
↵a Total number of articles assessing relationships between DTI measures and cognitive outcomes. Cognitive-outcome measures have been categorized as 7 domains (top row). Articles are classified as reporting positive correlation, negative correlation, or no correlation. Positive correlation indicates a correlation coefficient greater than zero. Negative correlation indicates a correlation coefficient less than zero. No correlation includes articles that reported analyzing relationships between the DTI measures and cognitive outcomes within a domain but either reported finding no correlation (correlation coefficient equal to zero) or a correlation with a P value > .05. A fully referenced version of this Table is available in On-line Table 8.