New generalized method of creating composite maps from group of multiple subjects

• analysisis performed on the voxel basis
• linear combination (contrast) of various SPMs are calculated, contrats can be created between various :
• subject groups eg. patient vs. control
• comparisons e.g. different tasks, imaging conditions
• statistics - as for control statistics in the Stroop study
• three final SPM are produced
• cumulative effect : mean statistics value
• statistical significance obtained via randomization
• statistical significance obtained by comparing contrasts calculated for individual subjects with null hypothesis
• map of correlation between particular contrast and external variable can be calculated
• age
• behavioral measures
• performance
• clinical parameters

• comparison within one group
• comparisonbetween two groups AdultDyslexia
• correlation with age ChildrenCorrelation