Mirror-touch synaesthesia: the role of shared ... - UCL Discovery

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Chapter 7
Figure 7.2 Summary of TBS sites stimulated, rSI (a), rPM (b). Locations of TMS
were determined using the Brainsight coregistration system. The co-ordinates for rSI
(27, -27, 69) were taken from a study on the tactile mirror-system (Blakemore et al.,
2005), the co-ordinates for rPM (54 -2 44) were taken from a study on the role of
sensorimotor resources in auditory emotion recognition (Warren et al., 2006). cTBS
parameters were used to stimulate each site. To ensure that any differences observed
were not due to non-specific effects of cTBS, the vertex was stimulated as a TMS
control site.
7.3 Results
Reaction times were trimmed prior to analysis (± 3 standard deviations and all
errors removed) and were corrected for accuracy (mean RT divided by percentage of
correct).
The role of r SI and rPM in recognizing emotions and identity from auditory cues
Baseline performance did not differ significantly across sites in either task
(Emotion task group: F(2,18) = 1.64, n.sig; Identity task group: F(2,18) = .815, n.sig).
To assess the effects across tasks and across sites, the difference between the post