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Presented By: Department of Psychology

CCN Forum - Poverty, Brain Development and Mental Health: Connecting Early Adversity to Adolescent Affective Neurocircuitry and Psychopathology

Christopher Monk, Ph.D., Professor of Psychology, University of Michigan

Monk Monk
Monk
In the U.S., 20% of children are growing up in poverty. These children face high risk for psychopathology, which often lasts a lifetime and perpetuates low socioeconomic status to future generations. Children of low-income families experience greater chronic stress, which may allow poverty to become biologically embedded by altering brain function. However, chronic stress encapsulates a heterogeneous set of events. To gain a more mechanistic understanding of how poverty leads to negative outcomes, it is crucial that the field identify how specific categories of poverty-related adverse events alter brain function and contribute to specific forms of psychopathology (McLaughlin, Sheridan & Lambert, 2014). Two prevalent and pernicious forms of poverty-related adversity are abuse and neglect. We hypothesized the following: 1) abuse would differentially impact threat circuitry (amygdala habituation) along with both anxiety and depression symptoms; 2) neglect would differentially affect reward circuitry (nucleus accumbens activation) and only depression symptoms. We examined adolescents from The Fragile Families and Child Wellbeing Study (FFCWS), an ongoing study of children born to predominantly low-income families. We assessed 237 15-16 year olds from the FFCWS who are growing up in Detroit, Toledo and Chicago. To date, we have completed fMRI data on 118 adolescents. Full diagnostic assessments of the teen and mom as well as symptom measures of anxiety and depression were acquired. The Child Trauma Questionnaire provided abuse/neglect information. We collected fMRI data using an emotional faces task with threatening (angry and fear faces) and intrinsically rewarding social stimuli (happy faces). Rates of maltreatment, symptoms and types of psychopathology as well as preliminary fMRI findings will be discussed.

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