infrasound

n. sound whose frequency is too low to be detected by human hearing, generally encompassing the range of 20 Hz to .001 Hz. The scientific study of infrasound is known as infrasonics. Able to cover long distances and circumvent or penetrate obstacles without dispersing, infrasonic waves are used by many nonhuman animals to communicate (see infrasonic communication) and have a variety of applications in geological monitoring (e.g., prediction of volcanic eruptions, detection of earthquakes). Compare ultrasound.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

December 18th 2024

visual consciousness

those contents of consciousness that have a visual origin. Operationally, such consciousness consists of those visual events that can be reported, distinguished from each other, and acted upon on request. Given these criteria, visual consciousness does not include blindsight.