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Exploring the Psychology of Sound Perception

This article delves into the fascinating world of sound perception, covering topics such as sounds we enjoy, sounds we hate, and how sounds trigger memories. It discusses the psychological aspects of sound, the anatomy of the ear, and how the brain processes auditory information. Discover the three key characteristics of sound waves and how they influence our perception. From understanding loudness and pitch to exploring the complex nature of timbre, this article provides insights into how we interpret and interact with the auditory world around us.

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Exploring the Psychology of Sound Perception

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  1. PSYCH JOURNAL 9/25/2013 • What sounds do you enjoy? • What sounds so you hate? • What songs hold memories for you?

  2. Hearing

  3. If a tree falls in a forest, and nobody hears it, is there a sound? • Psychologically speaking, no. • Sound is a psychological event that depends on the nervous system to send the physical energy of a sound wave to nerve impulses in our brain. • Without a brain to register the energy, there is no sound!!!!!

  4. What we hear • Sound is the vibration of molecules (gas, liquid, or solid) that creates a wave of pressure • Auditory – Related to the sense of hearing

  5. Three Characteristics of Sound Waves 1. Loudness • Related to the intensity of the wave’s pressure • Corresponds to the height of the wave • Measured in decibels

  6. Three Characteristics of Sound Waves 2. Pitch • Related to the frequency of the wave • Frequency refers to how rapidly the wave vibrates High Pitch = High Frequency Low Pitch= Low Frequency

  7. Three Characteristics of Sound Waves 3. Timbre • Refers to the quality of a sound and the complexity of the sound wave • A pure tone consists of only one frequency (rare) • We hear complex waves consisting of several sub waves with different frequencies

  8. Anatomy of the ear • Cochlea – snail shaped structure in the inner ear that contains the receptors for hearing • When a sound wave enters, fluid in the cochlea vibrates • This vibration creates wavelike motions that push on the basilar membrane (which runs through the middle of the cochlea) • Cilia- Hair cells in the ear rise and fall, which initiates a signal that is passed on to the auditory nerve • Loud noises can damage the hair cells in your ear!!!

  9. On to the brain • Eardrum – Sound waves cause it to vibrate • Auditory nerve –Carries auditory messages to the brain (auditory cortex in temporal lobe)

  10. Perceiving the auditory world • In the brain, sounds are organized to construct a meaningful auditory world • We remember sounds, and can recognize people’s voices, songs, etc. • Sounds help us estimate distance and direction • What we expect to hear influences what we actually hear • We can hear our name in a loud room

  11. http://www.youtube.com/watch?v=xbe-oIehMDM&feature=related • http://www.youtube.com/watch?v=J3jrWVp2L7U • https://www.youtube.com/watch?v=CD-E-LDc384 • http://www.youtube.com/watch?v=wCfWHqrYUqo • https://www.youtube.com/watch?v=W-fFHeTX70Q

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