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Brownian noise
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==Experimental evidence== Evidence of Brownian noise, or more accurately, of Brownian processes has been found in different fields including chemistry,<ref>{{cite journal |last=Kramers |first=H.A. |title=Brownian motion in a field of force and the diffusion model of chemical reactions |journal=Physica |volume=7 |issue=4 |year=1940 |pages=284–304 |issn=0031-8914 |doi=10.1016/S0031-8914(40)90098-2 |url=https://www.sciencedirect.com/science/article/pii/S0031891440900982|url-access=subscription }}</ref> electromagnetism,<ref>{{cite journal |last=Kurşunoǧlu |first=Behram |title=Brownian motion in a magnetic field |journal=Annals of Physics |volume=17 |issue=2 |year=1962 |pages=259–268 |issn=0003-4916 |doi=10.1016/0003-4916(62)90027-1 |url=https://www.sciencedirect.com/science/article/pii/0003491662900271|url-access=subscription }}</ref> fluid-dynamics,<ref>{{cite journal |last1=Hauge |first1=E.H. |last2=Martin-Löf |first2=A. |title=Fluctuating hydrodynamics and Brownian motion |journal=Journal of Statistical Physics |volume=7 |year=1973 |pages=259–281 |doi=10.1007/BF01030307 |url=https://doi.org/10.1007/BF01030307|url-access=subscription }}</ref> economics,<ref>{{cite journal |last=Osborne |first=M.F.M. |title=Brownian Motion in the Stock Market |journal=Operations Research |volume=7 |issue=2 |year=1959 |pages=145–173 |doi=10.1287/opre.7.2.145 |url=https://doi.org/10.1287/opre.7.2.145|url-access=subscription }}</ref> and human neuromotor control.<ref name="Tessari2024">{{cite journal |last1=Tessari |first1=F. |last2=Hermus |first2=J. |last3=Sugimoto-Dimitrova |first3=R. |title=Brownian processes in human motor control support descending neural velocity commands |journal=Scientific Reports |volume=14 |year=2024 |pages=8341 |doi=10.1038/s41598-024-58380-5 |url=https://doi.org/10.1038/s41598-024-58380-5|pmc=11004188 }}</ref> ===Human neuromotor control=== In human neuromotor control, Brownian processes were recognized as a biomarker of human natural drift in both postural tasks—such as quietly standing or holding an object in your hand—as well as dynamic tasks. The work by Tessari et al. highlighted how these Brownian processes in humans might provide the first behavioral support to the neuroscientific hypothesis that humans encode motion in terms of descending neural velocity commands.<ref name="Tessari2024" />
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