Psychology 1100 Introduction to Psychology Christopher Gade, PhD Office: Bertrand 27 Office hours: MW 1:30-3:30 and by apt

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Presentation transcript:

Psychology 1100 Introduction to Psychology Christopher Gade, PhD Office: Bertrand 27 Office hours: MW 1:30-3:30 and by apt Class MW 9:25-10:40 Angelico 226

The Other Senses: Hearing The properties of sound and the basics of the ear.

Listening Exercise Put your books, pens, pencils, phones, and all other items down. Close your eyes. Listen! What is it that you’re hearing?

Life Without Hearing What are some of the things that we would miss out on if we couldn’t hear? What are some of the things that we would miss out on if we couldn’t see? Which would you rather lose, hearing or vision? Why?

Is Hearing Physical or Perceptual? Physical Definition of Sound: A change in pressure of the air or other physical medium. Perceptual Definition of Sound: An experience of “sound waves” by the ear or other perceptual medium. Sound Properties – Sound Wave: A sudden change in MOLECULE pressure – Boat Example

More Properties of Sound Amplitude: The concentration of the air pressure. Determines the “loudness” of the sound. – Decibel = 20log(p/p o ) (p o = pressure medium for air, it = 20)

More Properties of Sound Frequency: The rate of sound wave occurrences. Determines the “pitch” of the sound. – Sound frequency is measured by Hertz (Hz). 1 Hz =1 cycle per second.

The Equal Loudness Curve and Audibility Curve What’s the loudness button on your stereo doing?

The Ear, Our Sound Wave Detector

The Benefits of the Pinna Listening Task 1.Form a circle 2.Each of you will participate in this at least once. 3.Participating individuals need to… 1.Stand in the center of the group and close their eyes 2.Locate an object based on its orientation (front, back right, left), distance (close, far), and properties (high, low) 1.Covering one ear 2.Covering your ears 3.Cupping your ears

Auditory Localization

How it works… Level/clarity differences Spectral cues – Hoffman’s pinnae mold experiment – Surround sound implications

Another Cue… Visual Capture – our vision’s tendency to dominate our mind’s interpretation of sound location.

The Inner Ear

A Closer Look at the Cochlear Duct

Moving on… In our next section, we’ll examine the topic of touch… come to class awake and clean… this will make better sense when we get going.