Journal
BIOSYSTEMS
Volume 67, Issue 1-3, Pages 187-193Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0303-2647(02)00076-X
Keywords
cerebral cortex; vibrissae; neural coding; information theory; spike timing
Categories
Funding
- Telethon [984] Funding Source: Medline
Ask authors/readers for more resources
This report addresses the nature of population coding in sensory cortex by applying information theoretic analysis to data recorded simultaneously from neuron pairs located in primary somatosensory cortex of anaesthetised rats. We studied how cortical spike trains code for the location of a whisker stimulus on the rat's snout. We found that substantially more information was conveyed by 10 ms precision spike timing compared with that conveyed by the number of spikes counted over a 40 ms response interval. Most of this information was accounted for by the timing of individual spikes. In particular, it was the first post-stimulus spikes that were crucial. Spike patterns within individual cells played a smaller role; spike patterns across cells were negligible. This pattern of results was robust both to the exact nature of the stimulus set and to the precision at which spikes were binned. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available