What does this research mean for the field?

Adult attachment security is linked to distinct autonomic stress profiles, with lower attachment security predicting a higher likelihood of exhibiting a dysregulated, unemotional physiological stress response. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To determine whether adults exhibit distinct autonomic stress regulation profiles and whether attachment security predicts membership across these profiles.

August 30, 2026Developmental PsychobiologyOpen Access

Empirical Evidence for the Developmental Origins of Autonomic Stress Regulation: An Attachment Account

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Authors

SVStefania V. Vacaru VZVictoria Zhu GGGreeshma Giridas

Discussion

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Overview

Observational study reveals distinct autonomic stress profiles linked to attachment security in young adults, suggesting early relational experiences shape biological stress calibration.

Key Points

To determine whether adults exhibit distinct autonomic stress regulation profiles and whether attachment security predicts membership across these profiles.
Assessed 110 young adults (N = 110; 57% female; mean age = 20.46 years) during an attachment script assessment (ASA).
Recorded heart rate variability (HRV) and skin conductance level (SCL) as continuous indices of parasympathetic and sympathetic activity.
Identified autonomic response profiles using latent profile analysis (LPA) and K-means clustering, followed by multinomial regression modeling.
Identified three distinct autonomic stress profiles based on joint HRV and SCL activation: buffered, unemotional, and sensitive.
Higher attachment security was associated with significantly lower odds of classification into the unemotional profile compared to the buffered reference profile in both LPA (OR = 0.49) and K-means models (OR = 0.45), with no difference between buffered and sensitive profiles.
An exploratory sex interaction within the latent profile model indicated that female participants had higher attachment security scores than male participants within the sensitive profile.

Cite This Study

Vacaru et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0576c1a8fb52e79c5f3 https://doi.org/10.1002/dev.70195

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August 30, 2026Developmental PsychobiologyOpen Access

Empirical Evidence for the Developmental Origins of Autonomic Stress Regulation: An Attachment Account

View Full Paper

Ask AI

Bookmark

Authors

SVStefania V. Vacaru VZVictoria Zhu GGGreeshma Giridas

Discussion

Member takes

Overview

Observational study reveals distinct autonomic stress profiles linked to attachment security in young adults, suggesting early relational experiences shape biological stress calibration.

Key Points

To determine whether adults exhibit distinct autonomic stress regulation profiles and whether attachment security predicts membership across these profiles.
Assessed 110 young adults (N = 110; 57% female; mean age = 20.46 years) during an attachment script assessment (ASA).
Recorded heart rate variability (HRV) and skin conductance level (SCL) as continuous indices of parasympathetic and sympathetic activity.
Identified autonomic response profiles using latent profile analysis (LPA) and K-means clustering, followed by multinomial regression modeling.
Identified three distinct autonomic stress profiles based on joint HRV and SCL activation: buffered, unemotional, and sensitive.
Higher attachment security was associated with significantly lower odds of classification into the unemotional profile compared to the buffered reference profile in both LPA (OR = 0.49) and K-means models (OR = 0.45), with no difference between buffered and sensitive profiles.
An exploratory sex interaction within the latent profile model indicated that female participants had higher attachment security scores than male participants within the sensitive profile.

Cite This Study

Vacaru et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0576c1a8fb52e79c5f3 https://doi.org/10.1002/dev.70195

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