Hi Ella, it has an internal clock that events have to be syncrhonized to. Try setting the dPSD to 0.5 doug

On 7/28/13 4:05 PM, Ella Hinton wrote:

Hi

Quick question - why must the duration of the EVs be an integer multiple of the dPSD, which is also tied to the TR? I have event duration of 3 seconds, but would like to reduce my TR from 3 down to 2.5, but I can't seem to input the correct numbers for optseq to help me.

thanks in advance Ella

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