LING 290 Lecture Notes - Lecture 7: Semicircular Canals, Speech Processing, Eustachian Tube
2 Mar 2016
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Hearing system: eustachian tube, middle ear, ear drum (tympanic membrane, external ear canal, ossicles, semicircular canal, cochlea, auditory nerve. Frontal lobe: motor cortex, planning, reasoning, problem solving. When we hear the voice, we process to comprehend. Corpus callosum is used to connect the hemispheres. Essentially symmetrical, but findings show that the lobes on different hemisphere have different ability. Dichotic listening (l ear rh ; r ear lh) Consonants and vowels: reas for consonants but not for vowels. Vowels have a high and different contour ( ear advantage lh dominance) ( lea rh dominance) Hemispheric systems complement each other in early perceptual process. Lh is good for /ba-da/ and rh is good for /ba-pa/ /ba-da/ has a difference in place of articulations (analytical skills lh) Result: lh when linguistically meaningful fmri (functional magnetic resonance imaging) Put people into the scanner and provide with a headset. Non-speech pure tone: rh primary auditory cortex in the temporal lobe.
