She demonstrated, for example, that healthy participants have a right-ear superiority for the reception of verbal stimuli, and left-ear superiority for the perception of melodies. In the early 1960s, Doreen Kimura used dichotic listening tests to draw conclusions about lateral asymmetry of auditory processing in the brain. He suggested that due to limited capacity, the human information processing system needs to select which channel of stimuli to attend to, deriving his filter model of attention. In the 1950s, Broadbent employed dichotic listening tests in his studies of attention, asking participants to focus attention on either a left- or right-ear sequence of digits. History ĭonald Broadbent is credited with being the first scientist to systematically use dichotic listening tests in his work. In one type of test, participants are asked to pay attention to one or both of the stimuli later, they are asked about the content of either the stimulus they were instructed to attend to or the stimulus they were instructed to ignore. In a standard dichotic listening test, a participant is presented with two different auditory stimuli simultaneously (usually speech), directed into different ears over headphones. It is used within the fields of cognitive psychology and neuroscience. Used to investigate auditory laterality and selective attentionĭichotic listening is a psychological test commonly used to investigate selective attention and the lateralization of brain function within the auditory system. Auditory test to assess selective attention Dichotic listening
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