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Cited by 283

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Place cell discharge is extremely variable during individual passes of the rat through the firing field

Open access
Fenton, André A., Muller, Robert U.·1998·Proceedings of the National Academy of Sciences

Abstract

The idea that the rat hippocampus stores a map of space is based on the existence of “place cells” that show “location-specific” firing. The discharge of place cells is confined with remarkable precision to a cell-specific part of the environment called the cell’s “firing field.” We demonstrate here that firing is not nearly as reliable in the time domain as in the positional domain. Discharge during passes through the firing field was compared with a model with Poisson variance of the location-specific firing determined by the time-averaged positional firing rate distribution. Place cells characteristically fire too little or too much compared with expectations from the random model. This fundamental property of place cells is referred to as “excess firing variance” and has three main implications: ( i ) Place cell discharge is not only driven by the summation of many small, asynchronous excitatory synaptic inputs. ( ii ) Place cell discharge may encode a signal in addition to the current head location. ( iii ) The excess firing variance helps explain why the errors in computing the rat’s position from the simultaneous activity of many place cells are large.

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Metadata

Authors
Fenton, A. A., & Muller, R. U.
Venue
Proceedings of the National Academy of Sciences
Published
1998-03-17
Volume
95
Issue
6
Pages
3182-3187
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2078575897
Cited by
283
References
3
FWCI
4.43
Type
journal article
Language
en
Open access
green

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