Air bubbles interfere with acoustic signal detection, as do the engines of seafaring vessels and the whir and blip of other monitoring equipment.

This method relies on signal detection theory; participants' accuracy rates reveal endorsement of the implicit stereotype.

Furthermore, improved electronics and signal detection allowed image penetration depth to increase by about 25%.

False alarms may occur with residential burglary alarms, smoke detectors, industrial alarms, and in signal detection theory.

Signal detection theory quantifies discriminability of a stimulus among a set of different stimuli.