I am programming a masked priming experiment in which a forward mask precedes a prime which is replaced by a target. However, so far I needed to present a blank screen (actually a rectangle shape of size = 20%,10%) to "overwrite" the mask and the prime. Otherwise letters of the mask and the prime are visible when the target appears.
/stimulusframes = [1 = fixation; 30 = mask; 59 = blank; 60 = primes; 63 = blank; 64 = targets]
This solution, however, prolongs the temporal availability of the prime and seems to reduce the masking effect of the mask. Is there any way to get rid of the blank and prevent any "shine through" of the mask and prime? At the moment all stimuli, except the blank, are text stimuli with prime being in lower case and targets being in upper case.
Best wishes Jens