J W Schooler, S Ohlsson, K Brooks; 1993
http://einstein.pslc.cs.cmu.edu/research/wiki/images/9/90/Schooleretal.pdf
[Perhaps extensive psychotherapy also shows some kind of an overshadowing effect through making some aspects of life too explicit - so to say the "extensive psychotherapy overshadowing effect".
see also: Skimming the Surface, Lane and Schooler, 2004; http://www.psych.ucsb.edu/research/meta/publications/Brett/Schooler's%20Publications%20copy/16.pdf - sometimes it makes sense to let the implicit stay implicit.]