www.som360.org/es
All answers

Can traumas be inherited?

Mar Álvarez
Mar Álvarez Segura
TEVI (domestic violence witness) Psychiatrist at the Youth and Infant Mental Health Centre in Cornella
Hospital Sant Joan de Déu Barcelona

The intergenerational transmission of trauma refers to a process by which the traumatic experiences of parents are currently negatively affecting their children by interfering with their socio-emotional development. These offspring may exhibit psychological sequelae. This transmission could explain the persistence of these sequelae and the negative mental health outcomes in vulnerable communities, even decades after the violence has ceased.

When a traumatic event occurs, such as abuse, relational patterns are profoundly affected . This can lead, for example, to families where parents have suffered abuse exhibiting more hostile parenting styles, fear of normal child behavior, explosive anger, and harsh parenting. However, this is not always the case, as studies also show that these parents can compensate and even become more effective figures in their relationships.

Alicia Álvarez García
Dr. Alicia Álvarez García
Clinical and Research Director of the Trauma, Crisis and Conflict Unit of Barcelona (UTCCB)
Universitat Autònoma de Barcelona

This topic has been widely discussed, and not always from a scientifically grounded perspective. Current studies indicate that what we inherit are the epigenetic changes caused by trauma in our ancestors, up to three generations back. This means that we don't inherit the trauma itself, but rather the vulnerability or susceptibility it generated in our ancestors. The latest studies focus on determining which structures or mechanisms might be affected, such as inheriting a larger amygdala. This alteration could make us more susceptible to having, in general, more intense alert reactions and, therefore, a greater likelihood of developing trauma in even less stressful situations, which we would perceive as more threatening.

Aside from this explanation based on genetics and biology, there is another consideration based on behavioral studies. Traumatic response patterns can be inherited through vicarious learning . In this sense, it wouldn't be inheriting the trauma itself. During childhood, if our primary caregivers suffer from post-traumatic stress disorder, we may end up internalizing ways of functioning or responding to certain situations that are, in reality, unconscious traumatic reactions from our caregiver.

You are watching
Mar Álvarez
Mar Álvarez Segura
TEVI (domestic violence witness) Psychiatrist at the Youth and Infant Mental Health Centre in Cornella
Hospital Sant Joan de Déu Barcelona
Alicia Álvarez García
Dr. Alicia Álvarez García
Clinical and Research Director of the Trauma, Crisis and Conflict Unit of Barcelona (UTCCB)
Universitat Autònoma de Barcelona