Related Experiment Video
Updated: Aug 16, 2026

05:21
Characterization of the Sense of Agency over the Actions of Neural-machine Interface-operated Prostheses
Published on: January 7, 2019
Nonpsychotic, nonparaphilic self-amputation and the internet
Bertrand D Berger1, Jon A Lehrmann, Gunnar Larson
1Mental Health Division, Zablocki Veterans Affairs Medical Center, Milwaukee, WI 53295, USA.
Comprehensive Psychiatry
|August 27, 2005
Summary
This case study explores self-amputation, differing from typical psychosis or paraphilia links. The patient
Area of Science:
- Psychiatry
- Psychology
- Medical Case Studies
Background:
- Literature often links self-amputation to psychosis or paraphilia.
- Understanding the diverse motivations behind self-amputation is crucial.
Observation:
- Presents a case where self-amputation was not driven by psychosis or sexual motivation.
- The patient identified strongly as an amputee, a core aspect of his identity.
Findings:
- The patient utilized the internet for research and peer support.
- Online communities facilitated information exchange and shared desires for amputation.
Implications:
- Suggests a need to broaden the differential diagnosis for self-amputation.
- Highlights the role of the internet in facilitating extreme self-modification behaviors.
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