PSYCH 10 Lecture Notes - Lecture 7: Autonomic Neuropathy, Horizontal Plane, Vertical Plane
Document Summary
Conduction hearing loss: stiffness of ear bones sounds aren"t transmitted as well. Module 20: the nonvisual senses cont. solution: hearing aid intensify vibrations. Slide 60 higher amplitude wave louder more cells fire. Slide 61 longer wavelength lower frequency lower pitched sound. Place theory: different location of vibration in cochlea different interpretation of pitch works well for high & low pitched sounds, doesn"t explain low pitch as well (in the apex, signals are weaker) Cell fires maximum up to 1000 hz. but we can hear up to 20,000 hz volley principle. Volley principle: not all cells fire at the same time one cell will fire at 1000 per second then another cell will fire a bit later added together greater than 1000 hz. Interaural difference - sounds reach one ear sooner than the other. Amplitude difference - sound is louder in one ear than the other. Vertical plane (front and back sound differences) pinnae.
