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Related Concept Videos

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,...
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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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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...
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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

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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
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A New Method for Inducing a Depression-Like Behavior in Rats
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Published on: February 22, 2018

Concerns about depression.

H M van Praag

    European Psychiatry : the Journal of the Association of European Psychiatrists
    |August 25, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Biological depression research faces stagnation due to flawed diagnostic methods. Addressing issues in classification, validation, and symptom analysis is crucial for future progress in understanding and treating depression.

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    Area of Science:

    • Neuroscience
    • Psychiatry
    • Clinical Psychology

    Background:

    • Biological depression research has achieved significant progress over the last 35 years.
    • Despite advancements, the field risks stagnation due to several critical issues.

    Discussion:

    • Critiques current Diagnostic and Statistical Manual of Mental Disorders (DSM)-based depression classification systems.
    • Highlights the proliferation of poorly validated diagnostic categories.
    • Discusses the desubjectivation of psychiatric diagnosis and the lack of dimensional/functional components.
    • Addresses horizontalism, the absence of vertical symptom grouping by diagnostic weight.

    Key Insights:

    • Current diagnostic practices hinder the advancement of biological depression research.
    • The field suffers from an overabundance of unreliable diagnostic categories.
    • A lack of dimensional and hierarchical approaches to symptom analysis is evident.

    Outlook:

    • Urgent scientific attention is required to prevent stagnation in depression research.
    • Proposes avenues for addressing diagnostic shortcomings and revitalizing the field.
    • Emphasizes the need for improved classification and functional analysis for future research.