Troubling Neurobiological Vulnerability: Psychiatric Risk and the Adverse Milieu in Environmental Epigenetics...

Area of Science:

• Post-genomic science and neurobiology
• Environmental epigenetics and psychiatric risk
• Global public health and mental health interventions

Background:

• Neurobiological vulnerability research has expanded, focusing on identifying risk factors and epigenetic traits for psychiatric conditions like depression and suicidality.
• The McGill Group for Suicide Studies (MGSS) has developed environmental epigenetic models, translating rodent findings to human populations.
• Research emphasizes the long-term effects of adverse experiences on maladaptive trajectories and negative mental health outcomes.

Purpose of the Study:

• To critically examine how neurobiological vulnerability is traced, measured, and profiled in environmental epigenetics and MGSS research.
• To explore the conceptual implications of epigenetic models linking early life adversity (ELA) to neurobiological vulnerability.
• To consider how these models inform mental health and global public health interventions, potentially redefining 'normal' and 'pathological'.

Main Methods:

• Analysis of research from the McGill Group for Suicide Studies (MGSS).
• Inspiration from Georges Canguilhem's philosophy and social studies of risk.
• Critical public health perspectives to examine the localization and materialization of ELA and neurobiological vulnerability.

Main Results:

• Epigenetic models of neurobiological vulnerability shape understandings of the 'normal,' 'pathological,' and 'milieu' in terms of risk.
• Early life adversity (ELA) and neurobiological vulnerability are increasingly localized and materialized in these models.
• There's a potential conceptualization of maladaptive trajectories as a 'new pathological' and resilience as a 'new normal.'

Conclusions:

• Troubling neurobiological vulnerability as a universal biosocial condition is necessary.
• An ecosocial perspective offers a different framework for understanding mental health and distress within adverse environments.
• Rethinking these models is crucial for effective mental health and global public health interventions.