The ERP omitted stimulus response to “no-stim” events and its implications for fast-rate event-related fMRI designs

  title={The ERP omitted stimulus response to “no-stim” events and its implications for fast-rate event-related fMRI designs},
  author={Laura Busse and Marty G. Woldorff},
A major difficulty in fast-rate event-related fMRI experiments is the extensive overlap from adjacent trials in the stimulus sequence. One approach to address this problem is to include "no-stim" or "null" events as a trial type. These are randomized as if they were true stimulus events but no stimulus actually occurs. Assuming that no response is elicited by the null events, their time-locked average reflects only the averaged overlap. Thus, contrasting the averages for the other trial types… CONTINUE READING

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