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Related Concept Videos

Depressive Disorders: MDD and Dysthymia01:27

Depressive Disorders: MDD and Dysthymia

Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
Depression: Overview01:18

Depression: Overview

Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
Treatment Strategies for Psychological Disorders01:24

Treatment Strategies for Psychological Disorders

Treatment approaches for psychological disorders fall into three main categories: psychological, biological, and sociocultural. Each approach targets different aspects of mental health, requiring varying levels of education and training.
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Long-term Depression01:03

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over time, all...
Long-term Depression01:05

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Depressive Disorders: Etiology01:27

Depressive Disorders: Etiology

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

Updated: Jul 12, 2026

Robotically Delivered fMRI-Guided Personalized Transcranial Magnetic Stimulation Therapy for Treatment-Resistant Depression
13:18

Robotically Delivered fMRI-Guided Personalized Transcranial Magnetic Stimulation Therapy for Treatment-Resistant Depression

Published on: April 10, 2026

Collaborative care for depression in UK primary care: a randomized controlled trial.

D A Richards1, K Lovell, S Gilbody

  • 1Department of Health Sciences, University of York, UK. dr17@york.ac.uk

Psychological Medicine
|September 7, 2007
PubMed
Summary

Collaborative care shows promise for treating depression in UK primary care. A larger trial is needed to confirm these findings and determine the best study design.

Related Experiment Videos

Last Updated: Jul 12, 2026

Robotically Delivered fMRI-Guided Personalized Transcranial Magnetic Stimulation Therapy for Treatment-Resistant Depression
13:18

Robotically Delivered fMRI-Guided Personalized Transcranial Magnetic Stimulation Therapy for Treatment-Resistant Depression

Published on: April 10, 2026

Area of Science:

  • Mental Health Research
  • Clinical Trial Design
  • Primary Care Interventions

Background:

  • Collaborative care is an effective depression intervention with organizational and patient-level components.
  • Its effectiveness in the UK and optimal trial design (cluster vs. patient randomization) for Phase III trials are unknown.

Purpose of the Study:

  • To evaluate the effectiveness of collaborative care for depression in UK primary care.
  • To assess the feasibility and inform the design of a Phase III clinical trial.

Main Methods:

  • A Phase II patient-level randomized controlled trial nested within a cluster-randomized trial.
  • Participants randomized to collaborative care (case manager-coordinated support, psychological treatment, enhanced communication) or usual care.
  • Primary outcome: depression symptoms measured by PHQ-9.

Main Results:

  • Recruited 114 participants.
  • Intervention showed a significant effect size (0.63) compared to cluster control.
  • Evidence of contamination between intervention and patient-randomized control groups, with a larger difference observed against the cluster-randomized control group.

Conclusions:

  • Collaborative care is a potentially powerful organizational intervention for depression in UK primary care.
  • Findings suggest organizational aspects may mediate treatment effects.
  • A large Phase III cluster-randomized trial is recommended for accurate testing.