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Updated: Oct 16, 2025

Psychophysiological Assessment of the Effectiveness of Emotion Regulation Strategies in Childhood
Published on: February 11, 2017
The effects of blood in self-injurious cutting: Positive and negative affect regulation
Stephanie E Stacy1, Carolyn M Pepper1, Joshua D Clapp1
1Department of Psychology, University of Wyoming, Laramie, Wyoming, USA.
Objective:
Seeing one's own blood may be a factor in affect regulation in nonsuicidal self-injury (NSSI). This study examined changes in a negative (NA) and positive affect (PA) in response to a finger prick eliciting a small drop of participants' blood.
Methods:
Two groups (NSSI; N = 56 and Control; N = 70) of undergraduate students were randomly assigned to receive a finger prick and look at blood, receive a finger prick and not look at blood, or receive a sham finger prick. Following a mood induction, participants completed the PANAS three times: Time 1 (pre mood-induction, baseline), Time 2 (post-mood induction), and Time 3 (post-finger prick condition), and a Pain Severity Scale.
Results:
A significant three-way interaction revealed that the NSSI: Blood Group had an increased positive effect between Time 2 and Time 3.
Conclusion:
Blood serves an important function in NSSI and requires additional research to fully understand the relationship.
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