Leidos Inc., Reston, Virginia, has been awarded an $18,745,838 cost-plus-fixed-fee contract for research and development. This contract aims to dramatically improve the ability to detect and geolocate ...

A team of New Jersey researchers has shown that changes in perceptual certainty and response bias, two central metrics of signal detection theory (SDT), correlate with changes in cognitive fatigue.

Sound can be represented with both analog or digital audio signals. Analog audio signals use electrical voltage levels. Different types of transducers convert sound to electrical signals and ...