Related Experiment Video
Updated: Jun 12, 2026
05:30
Soft Pneumatic Robot Modulates Graph Theory Metrics of Brain Network for Hand Rehabilitation After Stroke
Published on: October 10, 2025
Dynamic Network Connectivity: A new form of neuroplasticity
Amy F T Arnsten1, Constantinos D Paspalas, Nao J Gamo
1Department Neurobiology, Yale Medical School, 333 Cedar St., New Haven, CT 06510, USA. amy.arnsten@yale.edu
Trends in Cognitive Sciences
|June 18, 2010
Summary
Dynamic Network Connectivity (DNC) is a novel neuroplasticity in the prefrontal cortex that rapidly alters neural connections. Dysregulation of DNC is linked to cognitive disorders, impacting working memory and higher cognitive functions.
Area of Science:
- Neuroscience
- Cognitive Science
- Molecular Biology
Background:
- Prefrontal cortex (PFC) working memory relies on pyramidal cell networks connected via dendritic spines.
- The strength of these PFC network connections can be rapidly modulated.
- This modulation involves molecular signaling within dendritic spines.
Purpose of the Study:
- To introduce and define Dynamic Network Connectivity (DNC) as a novel form of neuroplasticity.
- To explore the functional implications of DNC in mental flexibility and capacity.
- To investigate the link between DNC signaling dysregulation and cognitive disorders.
Main Methods:
- The study proposes the concept of DNC based on existing research on PFC network connectivity.
- It reviews molecular signaling pathways within dendritic spines.
- It correlates genetic/environmental insults with DNC and cognitive deficits.
Main Results:
- DNC allows for rapid, reversible changes in PFC network connection strength.
- DNC provides mental flexibility but also confers vulnerability.
- Insults to DNC signaling are associated with cognitive disorders like schizophrenia and age-related cognitive decline.
Conclusions:
- DNC represents a critical mechanism for regulating PFC function and working memory.
- Dysregulation of DNC signaling cascades can lead to significant cognitive impairments.
- Understanding DNC is crucial for addressing cognitive disorders and enhancing cognitive capacity.
More Related Videos
10:26Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection
Published on: June 13, 2017
10:32Design, Surface Treatment, Cellular Plating, and Culturing of Modular Neuronal Networks Composed of Functionally Inter-connected Circuits
Published on: April 15, 2015
Related Concept Videos
01:01Neuroplasticity
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
00:58Plasticity
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
01:28Neuronal Communication
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
01:15Neurogenesis and Regeneration of Nervous Tissue
In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
01:25Neural Circuits
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
01:35Long-term Potentiation
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.