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28
Jun
Electrocorticography (ECoG) records the “high-gamma” (>60 Hz) frequency profile of the cortex, featuring a temporal resolution of the order of milliseconds [1].
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22
Jan
Targeted Vagus-nerve stimulation could reverse Tinnitus, a hearing impairment affecting almost 10% of senior citizens and 40% of military veterans.
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1
Dec
R.W. Lucky discusses the Gaussian profile of our world in the November’s issue of IEEE Spectrum.
Illustration: Richard Mia, IEEE Spectrum Nov 2010
Noise in neural systems usually carries a non-white complex correlated gaussian profile with higher power in low frequencies, due to synaptic coupling among neurons, superimposed field potentials etc.
Furthermore, as it has already been argued for more than a decade [1], in real case scenarios background noise cannot be considered as a stationary Gaussian process. On the other hand, most of communication theory, for example, is based on the “fiction” of additive white Gaussian noise.
In this article, the author challenges the “normality” of a world dominated by bell-shaped Gaussian curves.
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