Is negative BOLD in default-mode structures measured with EEG-MREG larger in temporal than extra-temporal epileptic spikes?
MREG results in an increased sensitivity to detect negative BOLD responses related to focal IED in single patients, with responses often occurring in DMN regions. In patients with high overlap with the DMN, this suggests that epileptic IEDs may be associated with a brief decrease in attention and cognitive ability. Interestingly this observation was not dependent on the frequency of IED but more common in IED of temporal origin.
HOB position did not significantly affect MFV in our patients with aSAH.