Class Notes (806,583)
Canada (492,336)
Psychology (4,968)
PSYCH 1XX3 (1,041)

Audition Lecture.doc

4 Pages
Unlock Document

McMaster University
Christopher Teeter

Final Exam: Sat, Apr. 12 9-11am Audition and Music Sound Sensations • Very similar processing to vision system • Capturing changes in air pressure, some amplification of info then sent onto the brain for further processing • Vision captures light and then changes it to neural signal and it is sent on to the brain for further processing • Bothe involve a wave • Frequency is the inverse of wavelength – long wavelength is low frequency • Sound is compressions and rarefactions of air molecules not actually a wave • When you create a sound, it ripples out in all directions like a rock dropped in water • Frequency is interpreted as pitch – high frequency = higher pitch/lower frequency =lower pitch • You are not just producing one pitch in your voice, it is a combination of frequencies that your brain combines • Amplitude is a measure of loudness – low amplitude is quiet/ high amp is loud – measured in decibels • Quietest sound we can hear is a mosquito 2m away • Timber is the measure of complexity/purity – a perfect sine wave is a pure sound/most sounds have a combination of frequencies and amp – 2 instruments can produce the same frequency and wavelength and sound different Ear Structure • Resembles “a contraption some indigenous plumber has put together from spare parts” • We have the ossicle to amplify sound – tympanic membrane vibrates then transmits to hammer (stapes), anvil and stirrup ( • We have muscles (ex. stapedius) that dampens sounds we make like chewing and talking so it is not too loud right next to our ear • When you are talking vibrations are conveyed through the bones in your skull • We hear our own voice different than others hear it – sounds travel through skull and are dampened by muscles so we hear our voice differently when we are talking then if we hear a recording • Noise induced hearing loss – if you expose yourselves to loud noised over a long period of time, hair cells get damaged • Like everyone walking on the same grass path – grass is damaged and doesn’t grow back but if a few people walk on it, it can repair itself • What you can hear now will affect what you can hear later Music Perception • Musicians develop more cortical space to processing music than non-musicians – doesn’t appear to be anything genetic – comes with training • Do they have any other benefits – not necessarily more intelligent over all, but are better at spatial processing (mental rotation of objects on an IQ test) • The Mozart Effect – after listening to music, people have an increased spatial processing for like 5 min. • There may be a connection between how the brain processes music (ex. reading music) and spatial processing • Why evolve music?: • Social cohesion – group event to some extent when you listen to music/ make music – may get you into a group (in-group/out-group status) – may lead to other advantages later on once you get into the group • Study related to this on young children (Frog Pond experiment) – 4yr olds had to “wake up the frogs” that were
More Less

Related notes for PSYCH 1XX3

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.