Identifying subgroups of urge suppression in Obsessive-Compulsive Disorder using machine learning
Open accessAbstract
Obsessive-compulsive disorder (OCD) is phenomenologically heterogeneous. While predominant models suggest fear and harm prevention drive compulsions, many patients also experience uncomfortable sensory-based urges ("sensory phenomena") that may be associated with heightened interoceptive sensitivity. Using an urge-to-blink eyeblink suppression paradigm to model sensory-based urges, we previously found that OCD patients as a group had more eyeblink suppression failures and greater activation of sensorimotor-interoceptive regions than controls. However, conventional approaches assuming OCD homogeneity may obscure important within-group variability, impeding precision treatment development. This study investigated the heterogeneity of urge suppression failure in OCD and examined relationships with clinical characteristics and neural activation. Eighty-two patients with OCD and 38 controls underwent an fMRI task presenting 60-s blocks of eyeblink suppression alternating with free-blinking blocks. Latent profile analysis identified OCD subgroups based on number of erroneous blinks during suppression. Subgroups were compared on behavior, clinical characteristics, and brain activation during task. Three patient subgroups were identified. Despite similar overall OCD severity, the subgroup with the most erroneous eyeblinks had the highest sensory phenomena severity, interoceptive sensitivity, and subjective urge intensity. Compared to other subgroups, this subgroup exhibited more neural activity in somatosensory and interoceptive regions during the early phase (first 30 s) of blink suppression and reduced activity in the middle frontal gyrus during the late phase (second 30 s) as the suppression period elapsed. Heterogeneity of urge suppression in OCD was associated with clinical characteristics and brain function. Our results reveal potential treatment targets that could inform personalized medicine.
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In patients with obsessive-compulsive disorder, higher interoception sensibility is associated with higher sensory phenomena.
“In patients with OCD, higher interoception sensibility, or the subjective sensitivity to internal bodily sensations (Garfinkel et al., 2015; Wilson et al., 2025), was associated with higher SP (Eng et al., 2024).”
From Differences in response inhibition between medication-free patients with obsessive-compulsive disorder with and without sensory phenomena (2026) · cites this paper as Eng et al., 2024
In individuals with obsessive-compulsive disorder, the highest degree of failed urge suppression is associated with the highest sensory phenomena, despite similar overall obsessive-compulsive disorder severity.
“Recently, Eng et al. (2024) showed that individuals with OCD with the highest degree of failed urge suppression had the highest SP, despite similar overall OCD severity.”
From Differences in response inhibition between medication-free patients with obsessive-compulsive disorder with and without sensory phenomena (2026) · cites this paper as Eng et al. (2024)
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- Authors
- Eng, G. K., De Nadai, A. S., Collins, K. A., Recchia, N., Tobe, R. H., Bragdon, L. B., & Stern, E. R.
- Affiliations
- Nathan Kline Institute for Psychiatric Research (US)
- Corresponding author
- Eng, Goi Khia
- Venue
- Journal of Psychiatric Research
- Publisher
- Elsevier BV
- Published
- 2024-09
- Volume
- 177
- Pages
- 129-139
- ISSN
- 0022-3956 (ISSN-L)
- PMC
- PMC11409861
- OpenAlex
- W4400147047
- Cited by
- 6
- References
- 82
- Citations by year
- 2026: 4 · 2025: 2
- FWCI
- 3.01
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- www.elsevier.com/legal/tdmrep-license (tdm)
- www.elsevier.com/open-access/userlicense/1.0/ (am, 316 d)
- doi.org/10.15223/policy-017 (stm-asf)
- doi.org/10.15223/policy-037 (stm-asf)
- doi.org/10.15223/policy-012 (stm-asf)
- doi.org/10.15223/policy-029 (stm-asf)
- doi.org/10.15223/policy-004 (stm-asf)
- Locations
- Journal of Psychiatric Research (acceptedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- Funders
- National Institutes of Health
- NIMH (R21/R33MH107589, R01MH111794)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Social Sciences › Psychology › Clinical Psychology › Psychoanalysis and Psychopathology Research
- Keywords
- obsessive-compulsive disorder, interoceptive sensitivity, sensory phenomena, phenotypic heterogeneity, latent profile analysis, somatosensory cortex, middle frontal gyrus, personalized medicine, treatment goals
- MeSH terms
- Machine Learning, Adult, Blinking, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Obsessive-Compulsive Disorder, Young Adult, Interoception
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