Individuals with the peculiar disturbance of '. overcompleteness' experience an intense desire to amputate one of their healthy limbs, describing a sense of disownership for it (Body Integrity Identity Disorder - BIID). This condition is similar to somatoparaphrenia, the acquired delusion that one's own limb belongs to someone else. In ten individuals with BIID, we measured skin conductance response to noxious stimuli, delivered to the accepted and non-accepted limb, touching the body part or simulating the contact (stimuli approach the body without contacting it), hypothesizing that these individuals have responses like somatoparaphrenic patients, who previously showed reduced pain anticipation, when the threat was directed to the disowned limb. We found reduced anticipatory response to stimuli approaching, but not contacting, the unwanted limb. Conversely, stimuli contacting the non-accepted body-part, induced stronger SCR than those contacting the healthy parts, suggesting that feeling of ownership is critically related to a proper processing of incoming threats.

Romano, D., Sedda, A., Brugger, P., Bottini, G. (2015). Body ownership: When feeling and knowing diverge. CONSCIOUSNESS AND COGNITION, 34, 140-148 [10.1016/j.concog.2015.04.008].

Body ownership: When feeling and knowing diverge

ROMANO, DANIELE LUIGI
Primo
;
2015

Abstract

Individuals with the peculiar disturbance of '. overcompleteness' experience an intense desire to amputate one of their healthy limbs, describing a sense of disownership for it (Body Integrity Identity Disorder - BIID). This condition is similar to somatoparaphrenia, the acquired delusion that one's own limb belongs to someone else. In ten individuals with BIID, we measured skin conductance response to noxious stimuli, delivered to the accepted and non-accepted limb, touching the body part or simulating the contact (stimuli approach the body without contacting it), hypothesizing that these individuals have responses like somatoparaphrenic patients, who previously showed reduced pain anticipation, when the threat was directed to the disowned limb. We found reduced anticipatory response to stimuli approaching, but not contacting, the unwanted limb. Conversely, stimuli contacting the non-accepted body-part, induced stronger SCR than those contacting the healthy parts, suggesting that feeling of ownership is critically related to a proper processing of incoming threats.
Articolo in rivista - Articolo scientifico
BIID; Body; Body representation; Consciousness; Ownership; Pain anticipation; Self awareness; Self consciousness; Somatoparaphrenia; Xenomelia;
BIID; Body; Body representation; Consciousness; Ownership; Pain anticipation; Self awareness; Self consciousness; Somatoparaphrenia; Xenomelia; citalopram; mirtazapine; adult; Article; behavior disorder; body integrity identity disorder; body integrity identity disorder; body regions; clinical article; electrodermal response; female; human; limb amputation; male; middle aged; pain measurement; psychotherapy; threat; agnosia; anticipation; body image; limb; pathophysiology; physiology; psychology; touch; Adult; Agnosia; Anticipation, Psychological; Body Image; Extremities; Female; Galvanic Skin Response; Humans; Male; Middle Aged; Touch Perception;
English
140
148
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Romano, D., Sedda, A., Brugger, P., Bottini, G. (2015). Body ownership: When feeling and knowing diverge. CONSCIOUSNESS AND COGNITION, 34, 140-148 [10.1016/j.concog.2015.04.008].
Romano, D; Sedda, A; Brugger, P; Bottini, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/118829
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