ANSWERS: 2
  • The processing of sounds, such as musical tones, begins with the inner ear (cochlea), which sorts complex sounds produced by, say, a violin, into their constituent elementary frequencies. The cochlea then transmits this information along separately tuned fibers of the auditory nerve as trains of neural discharges. Eventually these trains reach THE AUDITORY CORTEX IN THE TEMPORAL LOBE. Picture of location of temporal lobe is at: http://www.waynesburg.edu/depts/ccink/nerves/temporallobe.jpg Picture of location of auditory cortex is at: http://www.brainconnection.com/med/medart/l/anat/990705.jpg Different cells in the auditory system of the brain respond best to certain frequencies; neighboring cells have overlapping tuning curves so that there are no gaps. Indeed, because neighboring cells are tuned to similar frequencies, the auditory cortex forms a "frequency map" across its surface. --SOURCE: Scientific American
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