This is from a retweet posted by Shirley Wu. (initial by 23science
You can grab the paper here and take your time to read it carefully and plan how to replicate the case.
I think it could be an easy to perform experiment : “THE UNSUCCESSFUL SELF-TREATMENT OF A CASE OF “WRITER’S BLOCK”, Dennis Upper, J Appl Behav Anal. 1974 Fall; 7(3): 497. doi: 10.1901/jaba.1974.7-497b.

