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Related Concept Videos

Human Genetics01:28

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
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Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
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Related Experiment Video

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Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
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Putamen Structure and Function in Familial Risk for Depression: A Multimodal Imaging Study.

Ardesheer Talati1, Milenna T van Dijk1, Lifang Pan1

  • 1Department of Psychiatry, Columbia University Irving Medical Center and Vagelos College of Physicians and Surgeons, Columbia University, New York, New York; Division of Translational Epidemiology, New York State Psychiatric Institute, New York, New York.

Biological Psychiatry
|August 29, 2022
PubMed
Summary

Individuals at high risk for depression show reduced putamen volume and function. These putamen abnormalities may serve as biomarkers for predicting future major depressive disorder episodes.

Keywords:
High-riskMagnetic resonance imaging (MRI)Magnetic resonance spectroscopy (MRS)Major depressive disorder (MDD)Multimodal imagingPutamenResearch Domain Criteria (RDoC)

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Medical Imaging

Background:

  • The putamen's role in depression risk is not fully understood.
  • Investigating putamen structure and function in relation to depression risk is crucial.

Purpose of the Study:

  • To examine how putamen volume, neuronal density, and functional activity relate to family history and the course of depression.
  • To identify potential neurobiological markers for depression risk.

Main Methods:

  • 115 high- and low-risk offspring for depression were longitudinally studied.
  • Structural MRI, proton magnetic resonance spectroscopy (N-acetylaspartate/creatine ratio), and functional MRI were used to assess putamen.
  • Participants underwent clinical interviews, and functional MRI utilized a mood induction task.

Main Results:

  • High-risk individuals had significantly lower putamen volume, N-acetylaspartate/creatine ratio, and valence-modulated functional activity compared to low-risk individuals.
  • Age modulated the differences observed in putamen volume and N-acetylaspartate/creatine ratio.
  • Lower putamen volume predicted future major depressive disorder episodes up to 8 years post-scan.

Conclusions:

  • Abnormalities in putamen structure and function are evident in individuals at high risk for major depressive disorder.
  • The putamen may serve as a potential biomarker for depressive illness.
  • Age-related differences in MRI-assessed putamen characteristics highlight the complexity of family history's impact.