Page 149 - 2024-bfw-MyersAP4e-TE

Module 1.6c

Figure 1.6-19
Decibels
140 Rock band (amplified) Prolonged
at close range exposure The intensity of some TEACH 1.6-10
130 above 85 common sounds
decibels One study found 3 million
120 Loud thunder produces professional musicians had Discussion Prompt
hearing
110 Jet plane at 500 feet loss. almost four times the normal
rate of noise-induced hearing Explain to students that people in the
100 Subway train at 20 feet loss (Schink et al., 2014). Deaf community are divided over the
90 Noise-blocking earpieces and
headphones reduce the need roles of speech and sign language
80 Busy street to blast the music at dangerous
corner when communicating with the hearing
70 sebra/Shutterstock volumes.
60 Normal world. Some in the community believe
conversation
50 that learning to speak and read lips
40 instead of learning sign language
30 denies one’s identity as a deaf person.
20 Whisper To encourage critical thinking, ask
10
students to consider the following
0 Threshold of hearing
questions:
Distributed by Bedford, Freeman & Worth Publishers. Not for redistribution.
• What are the benefits and
the cochlea’s nerves, convey sound limitations of using sign language
information to the brain (National Transmitter Figure 1.6-20
Institute on Deafness and Other Com- Hardware for hearing exclusively in a hearing world?
Copyright © Bedford, Freeman & Worth Publishers.
munication Disorders [ NIDCD], 2021 ; Receiver/stimulator Cochlear implants work by • What should the hearing world’s
translating sounds into electrical

Figure 1.6-20 ). When given to deaf signals that are transmitted to the
kittens and human infants, cochlear cochlea and then, via the auditory response be to the use of sign
implants have seemed to trigger an nerve, relayed to the brain. language?
“awakening” of the pertinent brain
area (Klinke et al., 1999; Sireteanu, Electrode
1999 ). These devices can help children TEACH 1.6-10
become proficient in oral communi-
cation, especially if they receive them Enrichment
as preschoolers or ideally before age 1
( Dettman et al., 2007 ; Schorr et al., Tell students that Heather Whitestone
2005 ). Hearing, like vision, has a critical McCallum, Miss Alabama 1994,

period. Cochlear implants can help who has been profoundly deaf since
restore hearing for most adults, but
only if their brain learned to process Speech processor childhood, was crowned Miss America
sound during childhood. The restored in 1995. Her talent for the competi-
hearing can also reduce social iso-
lation and the risk of depression tion was ballet, which she learned to
( Mosnier et al., 2015 ). do well by feeling the vibrations of
the music through the floor on which
Perceiving Loudness, Pitch, and Location she danced. In 2002, she received
1.6-11 How do we detect loudness, discriminate pitch, and locate sounds? a cochlear implant to enhance her
1.6-11 How do we detect loudness, discriminate pitch, and locate sounds?
sense of hearing. She chose to have
We’ve discussed the mechanics of hearing. But how do we experience the variety of this done when she could not hear her
sounds — loud and soft, high and low — that help us navigate our world? And how do we
know where these sounds are coming from? young son’s cries after he injured him-
self playing in the yard at their home.
Sensation: Hearing Module 1.6c 139 Her choices to use speech over sign
language and to receive a cochlear
implant have been controversial in the
Deaf community.
03_myersAPpsychology4e_28116_ch01_002_163.indd 139 15/12/23 9:26 AM

Sensation: Hearing Module 1.6c 139

03_HammerTE4e_47547_ch01_2a_163_4pp.indd 139 07/02/24 5:29 PM