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Updated: May 10, 2025
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Published on: March 26, 2019
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Interoception after frontal brain injury: A systematic review.
Alice Bodart1, Sandra Invernizzi1, Laurent Lefebvre1
1Cognitive Psychology and Neuropsychology Laboratory, Department of Psychology and Educational Sciences, University of Mons, Mons, Belgium.
Summary
Frontal brain injuries can impair interoception, affecting emotional processing. This review found reduced accuracy and sensitivity in interoceptive abilities following frontal damage, highlighting a need for further investigation into these deficits and their emotional consequences.
Area of Science:
- Neuroscience
- Psychology
Background:
- Interoception, the sense of the body's internal state, is vital for emotional processing.
- The insula and frontal lobe, connected bidirectionally, are key to interoception and emotional experiences.
- Acquired frontal brain injury frequently results in emotional disorders.
Purpose of the Study:
- To investigate the interoceptive profiles of patients with frontal lobe lesions.
- To examine the impact of frontal injuries, with or without insular involvement, on interoception.
- To synthesize current research on interoceptive deficits following acquired frontal brain injury.
Main Methods:
- A systematic review guided by Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) standards.
- Included studies assessed at least one dimension of interoception in adults with acquired frontal injuries.
- Analysis focused on studies with or without associated insular lesions.
Main Results:
- Seven articles met the inclusion criteria.
- Frontal injuries were associated with declines in interoceptive accuracy.
- Reduced interoceptive sensitivity was observed in patient groups, while results for metacognition were inconsistent.
Conclusions:
- This review is the first to systematically explore interoceptive disorders post-frontal brain injury.
- Findings indicate deficits in cardiac interoceptive accuracy and sensitivity after frontal damage.
- Further research is required to confirm these interoceptive deficits and explore their link to emotional disorders.
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