Epigenetics of trauma: stress transmitted across generations

Studies by Dias & Ressler showed that epigenetic mechanisms allow the effects of stress to be passed to subsequent generations.

The genetics of psychopathology has shown that most mental disorders are polygenic: influenced by hundreds or thousands of genetic variants, each with a small effect. This means there is no 'schizophrenia gene' or 'depression gene', but a complex mosaic of genetic influences interacting with the environment.

The 2010s were the era of open science, the replication crisis, and data democratization. Psychology reinvented its methods and emerged as a leader in science reform. Meanwhile, social media transformed human relationships and raised new questions about mental health.

Significance: This milestone significantly contributed to the development of psychology as a science and profession, influencing research, clinical practice, or public policy.