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Published on: September 22, 2014
Criticality in the Brain: Evidence and Implications for Neuromorphic Computing
1Department of Physics and Center for Advance Nanoscience , University of California, San Diego , La Jolla , California 92093 , United States.
Abstract:
We have discovered an unexpected correlation between the operational temperature of the brain and cognitive abilities across a wide variety of animal species. This correlation is extracted from available data in the literature of the temperature range Δ T at which an animal's brain can operate and its encephalization quotient EQ, which can be used as a proxy for cognitive ability. In particular, we found a power-law dependence between Δ T and EQ. These data support the theory that the brain behaves as a critical system where temperature is one of the critical parameters, tuning the performance of the neural network.
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