Measurement reliability of atypical language lateralisation assessed using functional transcranial Doppler ultrasound.
It is well established that some individuals present with atypical, non-left hemisphere, cerebral lateralisation for language processing. However previous studies exploring the reliability of functional blood flow responses to detect lateralised activation during speech have focused only on individuals with typical left sided dominance. Here we report test-retest and between-task reliability measures obtained with functional transcranial Doppler ultrasound in 47 participants, including 9 with atypical language presentation. Results showed good test-retest reliability in atypically lateralised individuals, even after an interval of 120 days. Between-task reliability was weaker, but still within acceptable ranges.
School of Psychology, University of Lincoln, Lincoln, UK. Electronic address: jhodgson@lincoln.ac.uk.
Jessica C
JC
Hodgson
School of Psychology, University of Lincoln, Lincoln, UK.
John M
JM
Hudson
D000293:Adolescent; D000328:Adult; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D007804:Language Development; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D013060:Speech / Q000502:physiology; D017585:Ultrasonography, Doppler, Transcranial / Q000379:methods*; D055815:Young Adult
Cerebral blood flow measurement; Hemispheric lateralisation; Reliability; Speech; Transcranial doppler