Evidence that implementation intentions reduce self-harm in the community |
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Authors: | Abigail Paterson Mark A Elliott Louise A Brown Nicholls Susan Rasmussen |
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Institution: | 1. School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK;2. School of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK
Contribution: Conceptualization, Formal analysis, Funding acquisition, Methodology, Project administration, Resources, Supervision, Writing - review & editing |
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Abstract: | Objectives Implementation intentions are ‘IF-THEN’ plans that encourage goal-intended behaviour. This study was designed to test whether an intervention encouraging the formation of implementation intentions can reduce self-harm in the community. Design A randomized controlled design was used. Methods At pre-intervention, outcome variables (self-harm in both specified and unspecified critical situations and suicidality) and potential moderators of implementation intentions (goal intention, mental imagery, and exposure to self-harm) were measured using self-report questionnaires. The participants (N = 469, aged 18–66 years, 86.4% female, 6.8% male and 6.7% other) were then randomized to either an experimental (implementation intention) or control task. At three-months post-intervention, self-report questionnaires were used again to measure the outcome variables. Results There were no overall differences between the conditions at post-intervention. However, goal intention and mental imagery, but not exposure to self-harm, moderated the effects of condition on self-harm in specified critical situations. At high (mean + 1SD) levels of both goal intention and mental imagery, the experimental condition reported self-harming less frequently in the situations specified in their implementation intentions. Conclusions Implementation intentions therefore represent a useful intervention for reducing self-harm in specified critical situations for people in the community who wish to avoid self-harm and those who frequently experience self-harm and suicide related mental imagery. |
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Keywords: | goal intention implementation intention intervention mental imagery self-harm volitional help sheet |
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