PSY 101 Lecture Notes - Lecture 6: Hair Cell, Human Eye, Noise-Induced Hearing Loss

• School: University at Buffalo
• Department: Psychology
• Course: PSY 101
• Professor: Quinton Wendy

Document Summary

Perception- selection, organization and interpretation of sensory input. Hearing- oscillations or vibrations in air pressure. Absolute threshold- minimum amount of stimulation that an organism can detect. Vision- a candle flame seen at 30 miles on a clear, dark night. Hearing- the tick of a watch at 20ft under quiet conditions. Taste- one teaspoon of sugar in 2 gallons of water. Smell- one drop of perfume diffused into the air of six rooms. Touch- feel of a flys wing falling on your cheek from 1cm. Human eye is sensitive to only a narrow band of electromagnetic radiation. Screaming child 90db- dnger with prolonged exposure- loss after 8 hours. Subway train at 20ft- 110db- danger with prolonged exposure- loss after 2 hours. Concert at close range- 140db- immediate danger- loss after 3. 75 minutes. Noise induced hearing loss can be permanent, hair cells break off and do not grow back in humans.