PSYA01H3 Chapter Notes - Chapter 4: Auditory Cortex, Basilar Membrane, Inferior Colliculus
Document Summary
Pitch perceptual experience of sound wave frequencies. Auditory canal extends from the pinna to eardrum. Ossicles, incus, stapes these three removable bones allows ear to move (vibrate) Sound localization the process of identifying where sound comes from. Place theory of hearing how we perceive pitch is base on the location along the basilar membrane that sound stimulates. Frequency theory the perception of pitch is related to the frequency at which the basilar membrane vibrate. Primary auditory cortex major perceptual centre of the brain involved in perceiving what we hear. Secondary auditory cortex help interpret complex sounds, include speech and music. More sensitive region of body can detect two points even when they are spaced very close together less sensitive parts of body have much larger two-point threshold. Haptics active, exploratory aspect of touch sensation and perception active touch involves feedback kinesthesis sense of bodily motion and position. Nociception activity of nerve pathways that respond to uncomfortable stimulation.
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