Dissertation/Thesis Abstract

Behavioral and Physiological Manifestations of Jealousy During the First Year of Life: Implications for Cortisol Reactivity, EEG Asymmetry, and Mother-Infant Attachment
by Bernardo, Angela, M.A., Florida Atlantic University, 2020, 100; 28027267
Abstract (Summary)

Infants have an innate desire to form social bonds and jealousy protests are observed when an infant is trying to regain attention lost by a caregiver to a social competitor. The current study examined jealousy responses during the first year of life, between 6- to 9-months of age and 12- to 18-months of age, in response to loss of exclusive maternal attention, in addition to exploring implications for mother-infant attachment, EEG asymmetry, and cortisol reactivity and regulation. At both age groups, infants demonstrated increased approach behaviors when infants are faced with a social rival, in addition, left-frontal EEG asymmetry was associated with maternal-directed approach behaviors during the social rival condition. In the 6- to 9-month sample, left- frontal EEG asymmetry also demonstrated an association with infants’ regulatory abilities, measured by salivary cortisol. This study provides further evidence for the emerging links between social and emotional responses in infancy due to loss of exclusive maternal attention.

Indexing (document details)
Advisor: Jones, Nancy Aaron
Commitee: Bjorklund, David F., Kersten, Alan
School: Florida Atlantic University
Department: Psychology
School Location: United States -- Florida
Source: MAI 82/2(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Developmental psychology, Physiology
Keywords: EEG asymmetry, Infant jealousy, Mother-infant attachment, Salivary cortisol, Socioemotional development
Publication Number: 28027267
ISBN: 9798664731088
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