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Table 1 The comparison between optimal filtering and before filtering using FD and wavelet based features among within subjects (d i indicates the detail coefficient at level i).

From: Brain mapping and detection of functional patterns in fMRI using wavelet transform; application in detection of dyslexia

  Within Healthy Subjects Within Dyslexia Subjects
Feature p value p value
Sum of d1 0.0039 <0.0001
Variance of d1 0.0039 <0.0001
Mean absolute deviation of d1 0.0273 <0.0001
Sum of d2 0.0195 <0.0001
Variance of d2 0.0195 <0.0001
Mean absolute deviation of d2 0.0391 <0.0001
Sum of d3 0.0195 <0.0001
Mean absolute deviation of d3 0.0391 <0.0001
Higuchi FD (win = 8) 0.0078 0.0391
Higuchi FD (win = 15) 0.0039 0.0039