Beyond Clinical Signs: The Interplay Between Vagal Tone and Lethargic Behavior in Preterm Infants.
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| Title: | Beyond Clinical Signs: The Interplay Between Vagal Tone and Lethargic Behavior in Preterm Infants. |
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| Authors: | Aldrete-Cortez, Vania (AUTHOR), Catano-Cedillo, Liz (AUTHOR), Rendón-Macías, Mario Enrique (AUTHOR) |
| Source: | Developmental Neuropsychology. Jan/Feb2025, Vol. 50 Issue 1, p24-35. 12p. |
| Subjects: | Vagal tone, Heart beat, Autonomic nervous system, Premature infants, Behavioral assessment |
| Abstract: | In this cross-sectional, observational study, the association between lethargy and vagal tone was analyzed in thirteen low-risk preterm infants. Infants underwent behavioral assessment and vagal tone measurement indexed by high-frequency heart-rate variability (HF-HRV). A lower vagal tone cluster was associated with greater lethargy (p =.05), reduced handling (p =.003), excitability (p =.006), higher skin stress indicators (p =.13), and central nervous system stress indicators (p =.10) than cluster with a higher vagal tone cluster. A lower vagal tone could indicate autonomic nervous system dysregulation or immaturity, leading to neurobehavioral challenges, such as lethargy and further neurodevelopmental difficulties. [ABSTRACT FROM AUTHOR] |
| Copyright of Developmental Neuropsychology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | In this cross-sectional, observational study, the association between lethargy and vagal tone was analyzed in thirteen low-risk preterm infants. Infants underwent behavioral assessment and vagal tone measurement indexed by high-frequency heart-rate variability (HF-HRV). A lower vagal tone cluster was associated with greater lethargy (p =.05), reduced handling (p =.003), excitability (p =.006), higher skin stress indicators (p =.13), and central nervous system stress indicators (p =.10) than cluster with a higher vagal tone cluster. A lower vagal tone could indicate autonomic nervous system dysregulation or immaturity, leading to neurobehavioral challenges, such as lethargy and further neurodevelopmental difficulties. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 87565641 |
| DOI: | 10.1080/87565641.2025.2477531 |
