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Related Concept Videos

Long-term Depression01:05

Long-term Depression

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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.
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Animal Models of Depression - Chronic Despair Model CDM
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Captivity-Induced Depression in Animals.

Benjamin Lecorps1, Daniel M Weary1, Marina A G von Keyserlingk1

  • 1Animal Welfare Program, Faculty of Land and Food Systems, 2357 Main Mall, University of British Columbia, Vancouver, BC, V6T 1Z6, Canada.

Trends in Cognitive Sciences
|April 19, 2021
PubMed
Summary
This summary is machine-generated.

Captivity can expose animals to stressors, potentially causing persistent negative emotional states. Further research is needed to understand these depressive-like states in captive animals.

Keywords:
affective statesanimal welfarenonhuman animalssuffering

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Area of Science:

  • Animal Welfare Science
  • Comparative Psychology
  • Ethology

Background:

  • Growing concerns regarding the welfare of animals in captivity.
  • Captivity frequently involves exposure to environmental and social stressors.
  • Stressors in captivity may contribute to negative affective states.

Purpose of the Study:

  • To explore the potential for captivity to induce depressive-like states in animals.
  • To highlight the need for increased research into animal mental health in captive environments.

Main Methods:

  • This study is primarily theoretical, synthesizing existing knowledge on animal stress and welfare.
  • It reviews literature on the psychological impacts of confinement and reduced environmental complexity.

Main Results:

  • Captivity presents unique stressors that differ from natural environments.
  • These stressors are hypothesized to underlie persistent negative affective states, akin to depression.

Conclusions:

  • Captivity poses a significant risk factor for developing depressive-like conditions in animals.
  • There is a critical need for more empirical research to validate and understand these effects.
  • Addressing these welfare concerns requires a deeper scientific understanding of captive animal psychology.