Heart rate variability and generalized anxiety disorder during laboratory-induced worry and aversive imagery
| Autor: | Raymond Fleming, Samantha M. Cain, Wei-Ju Chen, Jason C. Levine, Joanna I. Piedmont |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male endocrine system medicine.medical_specialty Generalized anxiety disorder Adolescent media_common.quotation_subject Emotions Anxiety Audiology 050105 experimental psychology Developmental psychology Young Adult 03 medical and health sciences 0302 clinical medicine Heart Rate Parasympathetic Nervous System Heart rate medicine Humans Heart rate variability 0501 psychology and cognitive sciences Vagal tone media_common 05 social sciences Vagus Nerve medicine.disease Anxiety Disorders Anticipation Affect Psychiatry and Mental health Clinical Psychology Polyvagal Theory Case-Control Studies Imagination Female medicine.symptom Worry Psychology 030217 neurology & neurosurgery |
| Zdroj: | Journal of Affective Disorders. 205:207-215 |
| ISSN: | 0165-0327 |
| DOI: | 10.1016/j.jad.2016.07.019 |
| Popis: | Background To date only a few published studies have examined the effect of disorder-relevant stressors on heart rate variability (HRV) in participants meeting a clinical diagnosis of GAD, with conflicting results. The primary aim of this study was to determine if GAD is associated with lower HRV at rest, and whether vagal regulation during task varies by type (i.e., baseline, anticipation, imagery, or worry). Methods This study investigated resting cardiac vagal tone and vagal regulation in a sample of 40 participants with or without a validated diagnosis of generalized anxiety disorder (GAD). High-frequency heart rate variability (HF-HRV) was used to index cardiac vagal activity. Results GAD was associated with vagal withdrawal during both imagery and worry inductions, but no group differences in resting vagal tone or worry were observed. Limitations Methodological limitations include inherent limits to generalizability of laboratory-based findings; specifically worry induction and cardiac reactivity to lab-based stressors. Conclusions The results support the notion that GAD is associated with vagal withdrawal during active bouts of idiographic worry and imagery, and question the assumption that GAD is associated with low resting vagal tone. In light of polyvagal theory these findings provide additional support for the presence of emotion regulation deficits in GAD, and identify specific ANS processes that underlie GAD. |
| Databáze: | OpenAIRE |
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