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Dev Psychobiol. 2016 Apr;58(3):406-18. doi: 10.1002/dev.21381. Epub 2015 Nov 14.

Context differences in delta beta coupling are associated with neuroendocrine reactivity in infants.

Author information

1
Department of Psychology, Montana State University, PO Box 173440, Bozeman, MT 59717-3440. rebecca.brooker@montana.edu.
2
Department of Psychology, Miami University, Oxford, OH.
3
Department of Psychology, University of Wisconsin, Madison, WI.

Abstract

Although evidence suggests that delta-beta coupling may provide a useful index of trait level cortico-subcortical cross talk in baseline contexts, there has been little work done to clarify the role of delta-beta coupling across contexts and in association with other physiological markers of emotion processing. We examined whether individual differences in coupling were visible across both positive and negative emotion-eliciting episodes during infancy (age 6 months). We also tested the convergence between measures of delta-beta coupling and neuroendocrine reactivity, which is also believed to index emotion processing. Patterns of coupling across emotion-eliciting episodes differed based on infants' levels of cortisol reactivity. Low cortisol-reactive infants largely did not show differences in coupling across emotion contexts while high cortisol-reactive infants showed greater coupling in non-fear contexts during baseline and fear episodes. Moreover, high cortisol-reactive infants showed greater coupling than low-reactive infants in non-positive episodes.

KEYWORDS:

HPA axis; electrophysiology; emotion; infant

PMID:
26566605
PMCID:
PMC4801734
DOI:
10.1002/dev.21381
[Indexed for MEDLINE]
Free PMC Article

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