Katie McMahon1, Anthony Angwin2,
Anna Holmes3, Shiree Heath3, Sophie Van Hees3,
David Copland, 2,3
1Centre for Magnetic Resonance,
University of Queensland, Brisbane, Queensland, Australia; 2School
of Health and Rehabilitation Sciences, University of Queensland, Australia; 3UQ
Centre for Clinical Research, University of Queensland, Australia
A
normal elderly cohort was examined with MRI and a lexical access/semantic
priming task. The priming effect
(semantically related vs unrelated prime-target pairs), and the word
(semantic + unrelated response times) versus non-word targets were
calculated. These variables were covaried with the individual subjects high
resolution MRI images, to investigate any possible structural dependencies. Structures of areas associated with
attentional and semantic priming networks were significant when compared
against non-word responses, and areas of conceptual object knowledge and
familiarity when compared with the priming effect.