Related Experiment Video
Updated: Jul 3, 2026

Animal Models of Depression - Chronic Despair Model (CDM)
Published on: September 23, 2021
A role for neurological memory feedback loops in psychiatric depression
1University of Leeds, 9 Sandhill Oval, Leeds LS17 8EB, United Kingdom. afrais@tiscali.co.uk
Abstract:
This hypothesis proposes a neurological system model of memory feedback loops which demonstrates the difference in specific memory processing between depressed and non-depressed people. It is suggested that non-depressed people have a functioning neurological memory feedback loop system which enables them to re-appraise and be more circumspect with given situations. In contrast to this, it is suggested that depressed people do not have a functioning memory feedback loop and it is this that leads to the deficit of circumspect and considered thinking. This could explain why depressed people commonly exhibit instantaneous negative reactions to events that pre-morbidity were considered to be pleasurable or interesting.
Related Concept Videos
Role of Neurotransmitters in Memory
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is critical for...
Long-term Depression
Calcium Ion Concentration Mechanism
If over time, all...
Long-term Depression
Depression: Overview
Role of Amygdala in Memory
One of the...
Depressive Disorders: Etiology
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
