Reduced Jumping to Conclusion Bias after Experimentally Induced Enhancement of Subjective Body Boundaries in Psychosis.
Psychopathology January 1, 2021 Naomi Lyons, Detlef E Dietrich, Johannes Graser et al. 3 citations
A disturbed sense of self, particularly feeling disconnected from one's own body (disembodiment), may contribute to delusions in psychosis. In a randomized experiment, 73 patients with psychosis either performed a 10-minute guided self-massage to enhance bodily boundary awareness or massaged a fabric ring. Those who did the self-massage showed a reduced tendency to jump to conclusions (an average of 4.11 pieces of evidence before deciding versus 2.43 in the control group, a moderate effect). However, there was no significant difference in explicit paranoid beliefs. The findings suggest that improving the sense of bodily boundaries can reduce an implicit bias linked to delusional thinking, supporting the idea that disembodiment plays a role in psychotic symptoms.