Early life stress fundamentally alters alcohol processing in the brain
Experiencing social isolation during early developmental years can lead to increased anxiety and a higher preference for alcohol later in life. A new study in rats shows that these early stressors physically alter how the brain responds to alcohol, specifically changing how the chemical dopamine is regulated in regions linked to reward processing. The findings were published in the journal Addiction Neuroscience. As children and teenagers navigate critical periods of brain development, social contact helps shape their neural circuits. Environmental stressors during this sensitive window can disrupt normal developmental trajectories. Experiencing isolation or neglect during youth can elevate the risk of mood disorders and substance use issues in adulthood. Researchers from Binghamton University and Brigham Young University wanted to understand the biological mechanisms behind this vulnerability. Lead author Gavin J. Vaughan and senior author Anushree N. Karkhanis, both affiliated with Binghamton University, focused on a brain structure called the ventral pallidum. The ventral pallidum is a small cluster of cells resting deep within the brain. It acts as a central hub for assessing the value …









