Mediational Pathways Through Which Positive and Negative Emotionality Contribute to Anhedonic Symptoms of Depression: A Prospective Study of Adolescents |
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Authors: | Emily K Wetter Benjamin L Hankin |
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Institution: | (1) Department of Psychology, University of South Carolina, Barnwell College, Columbia, SC 29208, USA;(2) Department of Psychology, University of Denver, Frontier Hall, 2155 S. Race St., Denver, CO 80208, USA |
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Abstract: | This study takes a developmental psychopathological approach to examine mechanisms through which baseline levels of positive
emotionality (PE) and negative emotionality (NE) prospectively predict increases in anhedonic depressive symptoms in a community
sample of 350 adolescents (6th–10th graders). Dependent stressors mediated the relationship between baseline levels of NE
and anhedonic depressive symptoms after controlling for initial symptoms. Supportive relationships mediated the relationship
between baseline levels of PE and anhedonic depressive symptoms, after controlling for baseline symptoms. In addition, NE
X PE interacted to predict later anhedonic depressive symptoms, such that adolescents with low levels of PE and high levels
of NE experienced the greatest increase in anhedonic depressive symptoms. Last, supportive relationships interacted with baseline
PE to predict prospective changes in anhedonic depressive symptoms, such that adolescents with low PE and low supportive relationships
experienced the greatest increase in anhedonic depressive symptoms. Results are discussed in terms of current theoretical
models of the link between temperament and depression.
This work was supported, in part, by NIMH grants R03-MH 066845 and 1R01HD054736-01A1 to Benjamin L. Hankin. |
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Keywords: | Depression Temperament Mediation Stress |
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