The Union College Psychology Department Speaker Series and Honors Colloquium welcome
Marisa M. Silveri, Ph.D. '95
Neuroscientist & Director, Neurodevelopmental Laboratory on Addictions & Mental Health
McLean Imaging Center, McLean Hospital
Associate Professor of Psychiatry, Department of Psychiatry, Harvard Medical School
for a public lecture entitled
The Adolescent Brainiverse: Neurobiological Insights into “What Are you Thinking?!”
Thursday, January 12, 2017
12:45–1:50 PM • Karp 105
Lunch and refreshments will be provided.
Advances in neuroimaging technology over the past decade have provided a non-invasive window into the adolescent brain. Magnetic resonance imaging (MRI) technology has helped us to identify important milestones in brain development that allow for the transition from dependence to independence.
Overall brain size generally reaches a maximum by age 5 or 6. However, the significant brain changes associated with adolescence, observed into the early 20s, involve reorganization rather than growth. The last region of the brain to undergo major remodeling is the frontal lobe, which begins to come on line in later adolescence, contributing to the development of executive functions, which includes organization, planning, impulse control and decision-making. More primitive brain structures such as the amygdala develop earlier in life, which serves to provide a quick response in situations that involve danger. During adolescence, the development of the frontal lobe helps to put the brakes on the amygdala, reducing impulsive behavior and increasing the ability to make more thoughtful decisions. These essential brain changes have important relevance for understanding the vulnerabilities associated with adolescence, which includes consequences of making poor decisions, demonstrating impulsive behavior and taking dangerous risks, as well as the effects of alcohol and drug use on brain development and function.