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Hello Experts, I am wondering if any of you are aware of any commands of optseq for a mixed design? We are specifically not sure how to specify block duration. It seems like optseq is designed for event related design according to the help page, but I checked some community blogs and it looks like there should be some commands for mixed block event related design. There are four blocks of 6 images each. 1) Surprise/Embarrassment faces 2) Happy/Sad faces 3) Identify gender of faces 4) Match shapes

We planned to have the Match shapes blocks to interleave all other blocks. Thank you in advance!

Best, Yu optseq2 --ntp 160 --tr 2 --psdwin 0 20 2 --ev disgustingPic 2 20 --ev attractivePic 2 15 --ev neutalPic 2 30 --evc 1 -1 0 --nkeep 3 --o IAPS --tnullmin 2 --tnullmax 8 --nsearch 1000