Abstract #2671
The role of fronto-parietal networks in mental imagery
Henrietta Howells 1 , Marco Catani 1 , Flavio Dell'Acqua 2,3 , Anoushka Leslie 2 , Andrew Simmons 2 , Declan G. Murphy 1 , and Michel Thiebaut de Schotten 1
1
Forensic and Neurodevelopmental Sciences,
Institute of Psychiatry, London, United Kingdom,
2
Department
of Neuroimaging, Institute of Psychiatry, London, United
Kingdom,
3
NIHR Biomedical Research Centre for
Mental Health at SLAM NHS Foundation Trust, Institute of
Psychiatry, London, United Kingdom
When comparing two identical objects oriented
differently, subjects perform a mental rotation of one
object until it is congruent with the other. A recent
diffusion tractography study revealed a correlation
between right-lateralisation of a fronto-parietal
pathway, the second branch of the superior longitudinal
fasciculus (SLF II), and performance in certain
visuo-spatial tasks. It is unknown whether this pathway
is also involved in mental rotation. Using spherical
deconvolution tractography, we assessed this correlation
in a group of 25 healthy subjects. Our results confirmed
lateralisation of this tract is associated with mental
rotation performance.
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