English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Correlations and signatures of criticality in neural population models

Macke, J. (2017). Correlations and signatures of criticality in neural population models. Talk presented at Double Feature Workshop: Bernstein Symposium Kick-Off Symposium. Tübingen, Germany.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0000-C612-C Version Permalink: http://hdl.handle.net/21.11116/0000-0000-FA5D-F
Genre: Talk

Files

show Files

Locators

show
hide
Locator:
Link (Any fulltext)
Description:
-

Creators

show
hide
 Creators:
Macke, J1, Author              
Affiliations:
1Center of Advanced European Studies and Research (caesar), Max Planck Society, ou_2173675              

Content

show
hide
Free keywords: -
 Abstract: Large-scale recording methods make it possible to measure the statistics of neural population activity and to gain insights into the principles that govern the collective activity of neural ensembles. One hypothesis that has emerged from this approach is that neural populations are poised at a thermodynamic critical point. Support for this notion has come from a recent series of studies which identified signatures of criticality in the statistics of neural activity recorded from populations of retinal ganglion cells, and hypothesized that the retina might be optimised to be operating at this critical point. What mechanisms can explain these observations? Do they require the neural system to be fine-tuned to be poised at the critical point, or do they robustly emerge in generic circuits? We here show that these effects arise in a simple, canonical models of retinal population activity. They robustly appear across a range of parameters, and can be understood analytically in a simple model. These observations pose the question of whether signatures of criticality are indicative of an optimised coding strategy, or whether alternative theories are more promising candidates for understanding sensory coding.

Details

show
hide
Language(s):
 Dates: 2017-01-23
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: Macke2017
 Degree: -

Event

show
hide
Title: Double Feature Workshop: Bernstein Symposium Kick-Off Symposium
Place of Event: Tübingen, Germany
Start-/End Date: -
Invited: Yes

Legal Case

show

Project information

show

Source

show