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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.00422 |
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| _version_ | 1866915527794884608 |
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| author | Avramidis, Kleanthis Hughes, Myzelle Blank, Idan A Byrd, Dani Habibi, Assal Medani, Takfarinas Leahy, Richard M Narayanan, Shrikanth |
| author_facet | Avramidis, Kleanthis Hughes, Myzelle Blank, Idan A Byrd, Dani Habibi, Assal Medani, Takfarinas Leahy, Richard M Narayanan, Shrikanth |
| contents | Accurate identification of mental health biomarkers can enable earlier detection and objective assessment of compromised mental well-being. In this study, we analyze electrodermal activity recorded during an Emotional Stroop task to capture sympathetic arousal dynamics associated with depression and suicidal ideation. We model the timing of skin conductance responses as a point process whose conditional intensity is modulated by task-based covariates, including stimulus valence, reaction time, and response accuracy. The resulting subject-specific parameter vector serves as input to a machine learning classifier for distinguishing individuals with and without depression. Our results show that the model parameters encode meaningful physiological differences associated with depressive symptomatology and yield superior classification performance compared to conventional feature extraction methods. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_00422 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Point Process Model of Skin Conductance Responses in a Stroop Task for Predicting Depression and Suicidal Ideation Avramidis, Kleanthis Hughes, Myzelle Blank, Idan A Byrd, Dani Habibi, Assal Medani, Takfarinas Leahy, Richard M Narayanan, Shrikanth Signal Processing Accurate identification of mental health biomarkers can enable earlier detection and objective assessment of compromised mental well-being. In this study, we analyze electrodermal activity recorded during an Emotional Stroop task to capture sympathetic arousal dynamics associated with depression and suicidal ideation. We model the timing of skin conductance responses as a point process whose conditional intensity is modulated by task-based covariates, including stimulus valence, reaction time, and response accuracy. The resulting subject-specific parameter vector serves as input to a machine learning classifier for distinguishing individuals with and without depression. Our results show that the model parameters encode meaningful physiological differences associated with depressive symptomatology and yield superior classification performance compared to conventional feature extraction methods. |
| title | A Point Process Model of Skin Conductance Responses in a Stroop Task for Predicting Depression and Suicidal Ideation |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2510.00422 |