Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/143176
Title: Increases in arousal are more long-lasting than decreases in arousal : on homeostatic failures during emotion regulation in infancy
Authors: Wass, Sam V.
Clackson, Kaili
Leong, Vicky
Keywords: Social sciences::Psychology
Issue Date: 2018
Source: Wass, S. V., Clackson, K., & Leong, V. (2018). Increases in arousal are more long-lasting than decreases in arousal : on homeostatic failures during emotion regulation in infancy. Infancy, 23(5), 628-649. doi:10.1111/infa.12243
Journal: Infancy
Abstract: In emotion regulation, negative or undesired emotions are downregulated, but there are also opponent processes to emotion regulation—in which undesired emotions are exacerbated dynamically over time by processes that have an amplifying or upregulating impact. Evidence for such processes has been shown in adults, but little previous work has examined whether infants show similar patterns. To examine this, we measured physiological arousal in 57 typical 12 month olds while presenting a 20-min mixed viewing battery. Fluctuations in autonomic arousal were measured via heart rate, electrodermal activity, and movement. We reasoned that if transitions in autonomic arousal are random (stochastic), then (1) arousal would be normally distributed across the session, and (2) episodes where arousal exceeded a certain threshold above the mean should be as long-lived as those where arousal exceeded the same threshold below the mean. In fact we found that (1) heart rate and movement (but not electrodermal activity) were positively skewed, and (2) that increases in arousal have a lower extinction probability than decreases in arousal. Our findings may suggest that increases in arousal are self-sustaining. These patterns are the opposite of the homeostatic mechanisms predicted by naïve approaches to emotion regulation.
URI: https://hdl.handle.net/10356/143176
ISSN: 1525-0008
DOI: 10.1111/infa.12243
Rights: © 2018 International Congress of Infant Studies (ICIS). All rights reserved. This paper was published by Wiley Blackwell in Infancy and is made available with permission of International Congress of Infant Studies (ICIS).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SSS Journal Articles

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