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Related Concept Videos

Classification of Illness01:17

Classification of Illness

The meaning of illness is individualized to each person who experiences an alteration in health. In contrast, disease is a medical term indicating a pathological change in the structure and function of the body or mind. It is a condition that has specific symptoms and boundaries.
An illness is a response to a disease in which the person's level of functioning is changed compared with a previous level. The general classification of illness includes acute and chronic.
Acute illness is severe 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,...
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...
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.
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...
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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Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...

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Related Experiment Video

Updated: Jun 14, 2026

Determining the Functional Status of the Corticospinal Tract Within One Week of Stroke
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Published on: February 22, 2020

Defining and measuring functional recovery from depression.

Tracy L Greer1, Benji T Kurian, Madhukar H Trivedi

  • 1Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, Texas 75390-9119, USA.

CNS Drugs
|March 20, 2010
PubMed
Summary
This summary is machine-generated.

Depression significantly impairs daily functioning and quality of life. Future treatments must address functional recovery alongside symptom reduction for comprehensive depression care.

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Published on: November 21, 2025

Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Health Services Research

Background:

  • Depression causes substantial functional impairment and reduced quality of life, affecting work, relationships, and cognition.
  • Current depression remission definitions primarily focus on symptom reduction, neglecting crucial psychosocial functioning and quality of life outcomes.
  • Even mild or subsyndromal depression leads to functional deficits and increased relapse risk, highlighting the need for a broader treatment focus.

Purpose of the Study:

  • To emphasize the critical need to integrate functional outcomes into depression research and clinical practice.
  • To advocate for a comprehensive approach to depression treatment that addresses both symptom resolution and functional recovery.
  • To highlight the importance of evaluating and monitoring residual symptoms that contribute to functional impairment.

Main Methods:

  • Review of existing literature on depression, functional impairment, and quality of life measures.
  • Analysis of current definitions of depression remission and their limitations.
  • Identification of recommendations for assessing and treating functional outcomes in depression.

Main Results:

  • Existing research and clinical practices predominantly focus on depressive symptom reduction, with limited attention to functional improvements.
  • A significant gap exists in utilizing psychosocial function and health-related quality of life as primary outcomes in clinical trials.
  • Residual symptoms like insomnia, fatigue, pain, and cognitive deficits significantly impact function, irrespective of core depressive symptoms.

Conclusions:

  • Clinicians and researchers must expand treatment paradigms to include functional consequences of depression.
  • Development and implementation of novel treatment strategies targeting functional impairments are essential.
  • Comprehensive assessment and monitoring of functional outcomes are crucial throughout the course of depression treatment.