The Mind's Machine 3e Student Resources is no longer available and it was replaced by The Mind's Machine, 4e.
Chapter 6 Outline
Introduction: Hold the Phone
PART I Hearing and Balance
Pressure Waves in the Air Are Perceived as Sound
BOX 6.1: The Basics of Sound
The external ear captures, focuses, and filters sound
The middle ear concentrates sound energies
The cochlea converts vibrational energy into neural activity
RESEARCHERS AT WORK: Georg von Békésy and the cochlear wave
The hair cells transduce movements of the basilar membrane into electrical signals
Auditory Signals Run from Cochlea to Cortex
Our Sense of Pitch Relies on Two Signals from the Cochlea
Brainstem Systems Compare the Ears to Localize Sounds
The Auditory Cortex Processes Complex Sound
Hearing Loss Is a Widespread Problem
SIGNS & SYMPTOMS: Restoring Auditory Stimulation in Deafness
The Inner Ear Provides Our Sense of Balance
Some Forms of Vestibular Excitation Produce Motion Sickness
PART II The Chemical Senses: Taste and Smell
Chemicals in Our Food Are Perceived as Five Basic Tastes
Tastes excite specialized receptor cells on the tongue
The five basic tastes are signaled by specific sensors on taste cells
Taste information is transmitted to several parts of the brain
Chemicals in the Air Elicit Odor Sensations
The sense of smell starts with receptor neurons in the nose
Olfactory information projects from the olfactory bulbs to several brain regions
Many vertebrates possess a vomeronasal system