P1 latency did not differ between HC and SZ (Diagnosis: F1,51=0.174, p=0.678). There was a main effect of Hemisphere (F1,51=33.781, p<0.001), indicating that P1 latency was longer at electrodes ipsilateral vs. contralateral to the stimuli (see Fig. 6a). Significant IHTTs were also observed in both the SZ patients (F1,33=23.364, p<0.001) and the HCs (F1,19=14.064, p=0.001) when the groups were considered separately. However, there was no Diagnosis × Hemisphere interaction (F1,51=0.174, p=0.678), demonstrating that IHTTs did not significantly differ between groups (Fig. 6b). A significant VF × Hemisphere interaction was observed (F1,51=4.939, p=0.031) (Fig. 6c). Inspection of the data revealed that this was due to the IHTT from left-to-right hemisphere being shorter than IHTT from right-to-left hemisphere, across electrode pairs. There was a main effect of Electrode (F3,153=11.865, p<0.001), indicating that the 4 electrode pairs differed in terms of their P1 latency. No other significant main effects or interactions were found. In particular, there was no Diagnosis × VF × Hemisphere interaction (F1,51=0.122, p=0.728) indicating that the pattern of faster transfer from left-to-right hemisphere than vice versa was similar between SZ and HC.
