Abstract
Background: As the reciprocal effect between mind and body has been controversial since Freud's era, current research considers the relationship between the peripheral nervous system and psychological functions. Objectives: The current study aimed to examine parasympathetic activity concerning attachment style. Heart rate variability (HRV) has been assessed. It takes an account as an index of the autonomic nervous system, which included high frequency (HF), low frequency (LF), and very low frequency (VLF), was assessed. It is noteworthy that HF is an indicator of the parasympathetic nervous system. Methods: The study methodologically was casual-comparative. The participants included participants over 25 years-old residing in areas one to ten of Tehran. According to the agreement in casual-comparative studies, using a convenience sampling method, 36 participants opted. After missing 7 participants, 29 remained, divided into two groups based on their attachment style (12 participants in the insecure group and 17 ones in the secure group). The Persian version of Besharat's Attachment Adult Inventory (1987) and stress response evaluation (SRE) was conducted, and MANOVA performed an analysis to collect the data. Results: Findings showed that although there is a significant difference based on combining scores of VLF, LF, and HF between two groups (F = 10.493, P < 0.05, ɳ2 = 0.557), HF is of higher average in the insecure attachment group (F = 27.70, P < 0.05, ɳ2 = 0.506). Conclusions: Heart rate variability, especially HF, is an indicator of the parasympathetic branch of the autonomic nervous system that can be influenced by attachment style and early relationship.
Accepted Version
Published Version
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