Format

Send to

Choose Destination
See comment in PubMed Commons below
Neuron. 2009 Feb 26;61(4):597-608. doi: 10.1016/j.neuron.2009.01.008.

Spike-phase coding boosts and stabilizes information carried by spatial and temporal spike patterns.

Author information

  • 1Max Planck Institute for Biological Cybernetics, Spemannstrasse 38, 72076 Tübingen, Germany. christoph.kayser@tuebingen.mpg.de

Abstract

Several neural codes have been proposed in order to explain how neurons encode sensory information. Here we tested the hypothesis that different codes might be employed concurrently and provide complementary stimulus information. Quantifying the information encoded about natural sounds in the auditory cortex of alert animals, we found that temporal spike-train patterns and spatial populations were both highly informative. However, the relative phase of slow ongoing rhythms at which these (temporal or population) responses occurred provided much additional and complementary information. Such nested codes combining spike-train patterns with the phase of firing were not only most informative, but also most robust to sensory noise added to the stimulus. Our findings suggest that processing in sensory cortices could rely on the concurrent use of several codes that combine information across different spatiotemporal scales. In addition, they propose a role of slow cortical rhythms in stabilizing sensory representations by reducing effects of noise.

[PubMed - indexed for MEDLINE]
Free full text

LinkOut - more resources

Full Text Sources

Other Literature Sources

PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk