Evenifonly a tinypercentageofneuronsfiredin a givenregionatanyonetime, theenergyburdenofgeneratingspikesovertheentirebrainwouldbeunsustainable.
秤量
Here's whereenergyefficiencycomesin.
と柔軟に状況に応じた対応ができるようになりました。
Lettingjust a smallproportionofcellssignalatanyonetime, knownassparsecoding, usestheleastenergybutcarriesthemostinformationbecausethesmallnumberofsignalshavethousandsofpossiblepathsbywhichtodistributethemselves.
脳の9/10という考えは
A drawbackofsparsecodingwithin a hugenumberofneuronsisitscost.
髑髏の中で黙って見ている
Worse, if a bigproportionofcellsneverfire, thentheyaresuperfluous, andevolutionshould'vejettisonedthemlongago.