Volume 56, Issue 11 pp. 1177-1184
Original Article

Adolescent girls’ neural response to reward mediates the relation between childhood financial disadvantage and depression

Sarah E. Romens

Sarah E. Romens

Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA

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Melynda D. Casement

Melynda D. Casement

Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA

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Rose McAloon

Rose McAloon

Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA

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Kate Keenan

Kate Keenan

Department of Psychiatry, University of Chicago, Chicago, IL, USA

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Alison E. Hipwell

Alison E. Hipwell

Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA

Department of Psychology, University of Pittsburg, Pittsburg, PA, USA

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Amanda E. Guyer

Amanda E. Guyer

Center for Mind and Brain, University of California, Davis, CA, USA

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Erika E. Forbes

Corresponding Author

Erika E. Forbes

Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA

Department of Psychology, University of Pittsburg, Pittsburg, PA, USA

Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, USA

Correspondence

Erika E. Forbes, Department of Psychiatry, University of Pittsburgh, 3811 O'Hara Street, Loeffler 319, Pittsburgh, PA 15213, USA; Email: [email protected]

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First published: 05 April 2015
Citations: 50
Conflicts of interest statement: No conflicts declared.

Abstract

Background

Children who experience socioeconomic disadvantage are at heightened risk for developing depression; however, little is known about neurobiological mechanisms underlying this association. Low socioeconomic status (SES) during childhood may confer risk for depression through its stress-related effects on the neural circuitry associated with processing monetary rewards.

Methods

In a prospective study, we examined the relationships among the number of years of household receipt of public assistance from age 5–16 years, neural activation during monetary reward anticipation and receipt at age 16, and depression symptoms at age 16 in 123 girls.

Results

Number of years of household receipt of public assistance was positively associated with heightened response in the medial prefrontal cortex during reward anticipation, and this heightened neural response mediated the relationship between socioeconomic disadvantage and current depression symptoms, controlling for past depression.

Conclusions

Chronic exposure to socioeconomic disadvantage in childhood may alter neural circuitry involved in reward anticipation in adolescence, which in turn may confer risk for depression.