Dichotic listening
Dichotic Listening
Dichotic listening (pronounced: /daɪˈkɒtɪk ˈlɪsənɪŋ/) is a psychological test commonly used in the field of Cognitive Psychology and Neuropsychology. The term is derived from the Greek words "dicho" meaning "in two" and "otic" meaning "ear".
Overview
In a dichotic listening test, two different auditory stimuli (usually speech) are presented to the subject simultaneously, one to each ear. The subject is then asked to repeat or recall the information heard in one ear (the attended channel), while ignoring the information presented to the other ear (the unattended channel). This method is used to study selective attention and the lateralization of brain function.
History
The dichotic listening technique was first introduced by British scientist Colin Cherry in the 1950s. Cherry used this method to study the cocktail party effect, a phenomenon where people are able to focus their auditory attention on a particular stimulus while filtering out a range of other stimuli.
Related Terms
- Selective Attention: The process by which individuals focus on one particular stimulus while simultaneously ignoring irrelevant stimuli.
- Lateralization of Brain Function: The tendency for some cognitive functions to be specialized to one side of the brain or the other.
- Cocktail Party Effect: The ability to focus one's auditory attention on a particular stimulus while filtering out a range of other stimuli.
See Also
External links
- Medical encyclopedia article on Dichotic listening
- Wikipedia's article - Dichotic listening
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