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Last updated on April 16, 2014 at 6:04 EDT

Latest Stochastic resonance Stories

2011-12-06 22:45:10

Model shows that signal clarity only improves if specific energy conditions are met Scientists have shown the energy conditions, under which a weak signal supplied to a physical system emerges as a stronger signal at the output thanks to the presence of random noise (a process known as stochastic resonance), in a paper that has just been published in EPJ B´. Stochastic resonance goes against the intuitive idea that where noise is present, the signal tends to fade. It occurs in...

2010-09-29 13:51:22

White noise improves memory in schoolchildren Playing white noise in class can help inattentive children learn. Researchers writing in BioMed Central's open access journal Behavioral and Brain Functions tested the effect of the meaningless random noise on a group of 51 schoolchildren, finding that although it hindered the ability of those who normally pay attention, it improved the memory of those that had difficulties in paying attention. Göran Söderlund from Stockholm University,...

2009-12-23 14:09:25

Members of a Syracuse University research team have shown that an obscure phenomenon called stochastic resonance (SR) can improve the clarity of signals in systems such as radar, sonar and even radiography, used in medical clinics to detect signs of breast cancer. It does this by adding carefully selected noise to the system. The result has been a distinct improvement in the system's ability to correctly identify precancerous lesions, plus a 36 percent reduction in false positives. The...