Attachment Brain Imaging Neuroscience Psychology Psychotheraopy

Polyvagal Theory (PVT), Attachment & Trauma: An Update And Alternative Account

A recent discussion between 39 experts and Porges about Polyvagal Theory (PVT) sparked a lot of interest, including mine.

In this post on Substack, I would therefore like to summarise the content of this discussion, reflect upon its implications — also for our current understanding of attachment and trauma — and suggest an alternative account that can be further refined through mutual and constructive dialogue across domains.

My post also is an update and extension of my seventh Attachment Insights post in which I briefly illustrated that the latest scientific evidence doesn’t support PVT and which implications this conclusion has for our current understanding of attachment and trauma.

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Dr Pascal Vrticka is a social neuroscientist with strong ties to developmental & social psychology. His research focuses on the psychological, behavioural, biological, and brain basis of human social interaction, attachment and caregiving. Besides measuring neurobiological responses to different kinds of social versus non-social information in single participants using (functional) magnetic resonance imaging ([f]MRI) and electroencephalography (EEG), Dr Vrticka most recently started to assess bio-behavioural synchrony in interacting pairs using functional near-infrared spectroscopy (fNIRS) hyperscanning. The main question thereby is how romantic partners and parents with their children get “in sync” when they solve problems together or talk to each other. Dr Vrticka furthermore relates the obtained individual and dyadic behavioural, biological, and brain measures to interindividual differences in relationship quality – particularly attachment and caregiving. In doing so, he refers to attachment theory that provides a suitable theoretical framework on how we initiate and maintain interpersonal relationships across the life span. With his research, Dr Vrticka is promoting a new area of investigation: the social neuroscience of human attachment.

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