It was argued that obsession-compulsion might affect the consequences
of thought suppression. A group of 35 female students who were first s
ubmitted to thought suppression and then to an expression instruction
were compared with a group of 38 female students submitted twice to an
expression instruction. The emotional character of a target story rea
d by subjects was systematically varied between subjects, and obsessio
n-compulsion was included as a third between-subjects factor. No evide
nce of rebound or of initial enhancement was found when reported story
-related thoughts were compared across instructional conditions. There
was an interaction between obsession-compulsion and initial instructi
on on attempts to avoid target thoughts during the first period. Contr
ary to expectations obsession-compulsion was related to fewer attempts
at suppression in the suppression and more in the expression conditio
ns. Similarly, there was a trend for obsession-compulsion to be relate
d to more frequent target thoughts in the expression and less in the s
uppression conditions. These findings are discussed in relation to the
role of perceived responsibility in obsession-compulsion for thought
as a determinant of thought processes of obsessive-compulsive people.