Table 5.

Correlation between scores in subcomponents of fluency and FA in the frontal speech and dorsal language tracts in nfvPPA

FANo. of distortionsSpeech rate (WPM)Syntax production scoreSentence comprehension
ρpρpρpρp
Left frontal speech tracts
    BA44-SMAc (pre-SMA)−0.780.01*0.830.005*0.760.02*0.460.21
    BA6vPMC-SMAc (SMA proper)−0.700.03*0.500.170.270.480.100.79
    BA44-Putamen−0.270.490.450.220.450.220.470.20
    SMAc-Caudate−0.720.03*0.750.02*0.650.060.280.45
Left dorsal language tracts
    SLF II/III−0.650.060.780.01*0.760.02*0.780.01*
    AF−0.370.330.530.130.760.02*0.840.004*
  • *Significant correlations in PPA variants at p < 0.05.