Synchronized dynamics of cortical neurons with time-delay feedback
2007
Synchronized Dynamics of Cortical Neurons with Time-Delay Feedback
publication
Evidence: moderate
Author Information
Author(s): Landsman Alexandra S, Schwartz Ira B
Primary Institution: US Naval Research Laboratory
Hypothesis
How do time delays in the coupling of cortical neurons affect their synchronization?
Conclusion
The study found that shorter synaptic time constants promote synchronization of cortical neurons, even with weak coupling.
Supporting Evidence
- Faster synapses increase both the degree of synchronization and the firing rate.
- Pre-synaptic input during the inter-spike interval stabilizes the synchronous state.
- Shorter synaptic time constants lead to better synchronization.
Takeaway
This study shows that when brain cells talk to each other with a little delay, they can still work together really well, especially if they send signals quickly.
Methodology
The dynamics of three mutually coupled cortical neurons were explored numerically and analytically.
Limitations
The model may not capture all complexities of real neural networks.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website