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Related Experiment Videos

From biophysics to models of network function

E Marder1

  • 1Volen Center, Brandeis University, Waltham, Massachusetts 02254, USA. marder@volen.brandeis.edu

Annual Review of Neuroscience
|April 8, 1998
PubMed
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Short-term synaptic plasticity, including facilitation and depression, significantly impacts neural network function. These dynamic processes, alongside neuromodulation, are crucial for understanding brain integration and behavior.

Area of Science:

  • Neuroscience
  • Computational Neuroscience
  • Systems Neuroscience

Background:

  • Neurons and synapses exhibit complex time-dependent processes.
  • Current computational models often oversimplify neuronal dynamics and synaptic strengths, assuming they are fixed.
  • Understanding how these dynamic properties influence brain function is a key challenge.

Purpose of the Study:

  • To review recent computational models highlighting the role of short-term synaptic plasticity in neural network function.
  • To explore other synaptic features like multi-component potentials, cotransmission, and neuromodulation.
  • To illustrate how dynamic synaptic and intrinsic properties shape network behavior.

Main Methods:

  • Review of recent computational modeling studies.

Related Experiment Videos

  • Analysis of synaptic plasticity mechanisms (facilitation, depression).
  • Examination of synaptic transmission features (multi-component potentials, cotransmission, neuromodulation).

    • Main Results:

    • Short-term synaptic plasticity mechanisms critically influence network function.
    • Dynamic variations in synaptic strength and intrinsic neuronal properties occur on multiple timescales.
    • Temporal activity patterns and the modulatory environment continuously alter network properties.

    Conclusions:

    • Synaptic plasticity and neuromodulation are essential for understanding brain integrative functions.
    • Neuronal network behavior is determined by a dynamic interplay of firing frequency and modulatory influences.
    • Dynamic synaptic and intrinsic properties are fundamental to producing behavior.