:''For the processing of language by computers, see
Natural language processing.''
'Language processing' refers to the way human beings process speech or writing and understand it as language. Most recent theories back the idea that this process is made completely by and inside the brain.
Spoken language
Acoustic stimuli are received by the auditive organ and are converted to bioelectric signals on the
organ of Corti. These electric impulses are then transported through
scarpa's ganglion (
vestibulocochlear nerve) to the
primary auditory cortex, on both hemispheres. Each hemisphere treats it differently, nevertheless: while the left side recognizes distinctive parts such as
phonemes, the right side takes over
prosodic characteristics and melodic information.
The signal is then transported to
Wernicke's area on the left hemisphere (the information that was being processed on the right hemisphere is able to cross through inter-hemispheric
axons), where the already noted analysis takes part.
From this area, the signal is taken to
Broca's area through what is called the
arcuate fasciculus. Broca's area is in charge of interpreting the information provided by Wernicke's area (using the
pars triangularis) and transmitting information to the closely located motor-related areas of the brain for production of speech (relying on the
pars opercularis).
Written language
Written language works in a fairly similar way, only using the
primary visual cortex instead of the auditory.
See also
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Feature Detectors
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Motor theory