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Related Concept Videos

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Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
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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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Related Experiment Video

Updated: Apr 18, 2026

A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice
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Sleep and plasticity in schizophrenia.

Kate E Sprecher1, Fabio Ferrarelli, Ruth M Benca

  • 1Department of Psychiatry, Neuroscience Training Program, University of Wisconsin, Madison, WI, USA.

Current Topics in Behavioral Neurosciences
|January 23, 2015
PubMed
Summary

Schizophrenia disrupts sleep rhythms, impairing sleep-dependent brain plasticity. Studying sleep in schizophrenia offers insights into its neurobiology and potential treatments.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Sleep Medicine

Background:

  • Schizophrenia affects ~1% globally, with elusive neurobiology despite extensive research.
  • Patients exhibit significant sleep disturbances and memory deficits.
  • Disrupted sleep rhythms (slow waves, spindles) are noted in schizophrenia.

Purpose of the Study:

  • To explore the dysfunction of sleep-mediated plasticity in schizophrenia.
  • To investigate behavioral, cellular, and molecular evidence of this dysfunction.
  • To propose how studying sleep activity can illuminate schizophrenia's pathophysiology.

Main Methods:

  • Review of existing evidence on sleep disturbances in schizophrenia.
  • Analysis of behavioral, cellular, and molecular data related to sleep and plasticity.

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  • Discussion of the role of sleep rhythms in healthy and pathological brain function.

    • Main Results:

    • Schizophrenia patients show impaired sleep-mediated plasticity.
    • Evidence suggests dysfunction at multiple levels: behavioral, cellular, and molecular.
    • Altered sleep rhythms are linked to disrupted plastic processes.

    Conclusions:

    • Sleep-mediated plasticity is impaired in schizophrenia.
    • Studying sleep disturbances offers a promising avenue for understanding schizophrenia.
    • Further research into sleeping brain activity may reveal key pathophysiological mechanisms.