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Our
laboratory has a major program of developmental research that is
focused on the developmental antecedents of mood disorders and
childhood depression. The lifetime risk of mood disorders in the
U.S.
population is about 15%. Depression represents an enormous
psychological and economic burden in our country today. The
roots of mood disorders can be traced to specific patterns of
emotional function in children, and our laboratory is a leader
in developing a better understanding of this devastating
problem.
We study children at all ages ranging from
infants to adolescents, and we use a variety of different
methods, including measurement of brain electrical activity and
functional magnetic resonance imaging (fMRI). We are studying a
number of samples of infants and children over time so that we
can track how early neural patterns predict the development of
later mood disorders. We are also engaged in a major study of
identical and fraternal twins to obtain better estimates of the
extent to which specific neurobiological features of childhood
depression are heritable.
Our laboratory also serves as a magnet for
collaborative efforts involving a number of other sites. We
currently have major collaborations with researchers at both the
National Institute of Mental Health (NIMH) and the University of
Pittsburgh. At NIMH we have a unique opportunity to study
children with bipolar disorder or those at risk for bipolor
disorder. Bipolar disorder is a devastating condition that is
associated with a very high risk of suicide. New findings are
beginning to emerge that help us to better understand the basis
for emotional instability in these children and that offer new
possibilities for the development of therapeutic interventions,
both behavioral and pharmacological. At the University of
Pittsburgh, we are collecting brain electrical measurements from
a very large sample of adolescents (~3000) on whom we also have
detailed information on specific genetic polymorphisms that are
known to affect brain circuitry underlying emotion and emotion
regulation. This effort will allow us for the first time to
examine relations between specific molecular genetic risk
factors and systems level brain functioning critical for emotion
regulation. All of this information will be crucial in better
identifying children at-risk earlier in life and also in the
development of new interventions.
The Opportunity: The Brain Imaging Lab
is uniquely positioned to take advantage of a number of ongoing
longitudinal studies that will enable us to identify early
neural risk factors that predict childhood
depression. Having this information earlier in life prior to the
development of a full-blown disorder may permit prophylactic
action and prevention strategies.
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