DEA 1500 Lecture Notes - Lecture 15: Supersonic Transport, Sleep Disorder, Logarithmic Scale
27 Apr 2018
School
Department
Course
Professor
REVIEW
1. Overstaffing: how many people you have vs. how many you need
a. Think about big schools vs. small schools
2. Crowding
a. Desired social interaction vs. achieved social interaction
i. Too much social interaction → crowding
3. Stress
a. Personal space invasion
b. Behavioral constraint
i. Lose options for action
c. Interference with goals
4. Sound
a. Intensity--decibels
i. Logarithmic scale (up by 10, 10x louder)
ii. Supersonic transport and British Airways didn’t work out in US b/c too
loud
b. Reverberation time
i. Echo
ii. If room is filled, acoustic reverberation will change
5. Sources of noise
a. Transportation, construction, appliances, other people, music
HER: NOISE
1. Auditory Effects of noise
a. Permanent and temporary threshold shift
i. Loss of hearing
1. High levels of noise exposure over time can create hearing
damage
2. OSHA scale
a. Higher levels of decibel exposure → less duration allowed
ii. Two ways noise can affect your hearing
1. Permanent: too much noise exposure over time
2. Temporary: think when you go to a loud concert
a. Too many temporary losses can result in permanent
b. Sleep disturbance
i. If it’s loud enough, sleep will be disturbed
ii. Amsterdam Airport Noise Exposure and sleep
1. Comparing less than 50 vs. more than 60 noise exposure in
relation to use of sleep meds
a. 60+ way more likely to be prescribed sleep meds, using
OTC sleep meds, frequently use sleep meds
2. Confounding--cheaper house may be noisier
iii. Another study: simulated airport noise in sleep lab
1. Brain wave activity from EEG
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Review: overstaffing: how many people you have vs. how many you need, think about big schools vs. small schools, crowding, desired social interaction vs. achieved social interaction. Too much social interaction crowding: stress, personal space invasion, behavioral constraint. Supersonic transport and british airways didn"t work out in us b/c too loud: reverberation time. If room is filled, acoustic reverberation will change: sources of noise, transportation, construction, appliances, other people, music. Her: noise: auditory effects of noise, permanent and temporary threshold shift. Loss of hearing: high levels of noise exposure over time can create hearing damage, osha scale, higher levels of decibel exposure less duration allowed. Two ways noise can affect your hearing: permanent: too much noise exposure over time, temporary: think when you go to a loud concert, too many temporary losses can result in permanent, sleep disturbance. If it"s loud enough, sleep will be disturbed.
