People with autism spectrum disorder (ASD) tend to detect local patterns of visual stimuli more quickly than global patterns, which is opposite to the behavior of typically developing people. We hypothesized that the imbalance between excitation and inhibition neurons in the visual cortex causes the local processing bias observed in ASD. Stronger inhibitory connections could diminish the neural...

|The evolutionary spectrum (ES) is a \time-varying power spectrum" of nonstationary random processes. Starting from an innovations system interpretation of the ES, we introduce the generalized evolutionary spectrum (GES) as a novel family of time-varying power spectra. The GES contains the ES and the recently introduced transitory evolutionary spectrum as special cases. We consider the problem ...

The spectral linewidth from two cross-correlated fiber Bragg gratings (FBGs) are interrogated and characterized using a delayed self-homodyne method for fiber strain sensing. This approach employs a common higher frequency resolution instead of wavelength. A sensitivity and resolution of 166 MHz/με and 50 nε were demonstrated from 4 GHz spectral linewidth characterization on the electric spectr...

This primer examines the theory of state-of-the-art spectrum analysis and describes how modern spectrum analyzers are designed and how they work. That is followed by a brief characterization of today's signal generators, which are needed as a stimulus when performing amplifier measurements.