Wanted and Unwanted Sounds and Their Affects on the Psychological and Physiological Performance

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Wanted and Unwanted Sounds and Their Affects on the Psychological and Physiological Performance

Research Question:

How does “unwanted” sound affect the physiological and psychological performance differently than “wanted” sound?

Thesis statement:

“Wanted” and “unwanted” sounds have the same physiological effects on the human body but effect its psychological performance differently.


Sound is a particular auditory impression perceived by the sense of hearing. The presence of unwanted sound is called noise pollution. This unwanted sound can seriously damage and effect physiological and psychological health. For instance, noise pollution can cause annoyance and aggression, hypertension, high stress levels,
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Complete quietness is equal to 20dB of sound. Since everything that moves makes sound, although some of the sounds are so small that they cannot be perceived by the human body, because the sound waves spread out and become too weak to be “heard”.

The ear can be separated into three sections, the outer ear, the middle ear, and the inner ear. The outer ear is a sound gathering device. The shape allows it to capture sound and funnel it into the ear. The outer ear also serves to protect the ear from dust and other particles from entering and causing damage to the auditory organs. The skin on the outer third of the canal has hairs, sweat glands, and glands that produce earwax.
Earwax helps protect the eardrum by trapping dirt that would otherwise lodge against the membrane.

Sound is then taken into the middle ear by the auditory canal where the process of hearing begins. The middle ear is a chamber filled with air, which contains an amplifying system composed of three linked bones. These bones are responsible for the mechanical transfer of sound waves. These bones are the malleus, or hammer, the incus, or anvil, and the stapes, or stirrup, which is the smallest bone in the body.

The hearing process begins when sounds enter the ear and reach the eardrum, causing it to vibrate. The eardrum is also known as the tympanic membrane, because of its characteristic to vibrate in a beat. The malleus, near the eardrum begins to vibrate in the same rhythm

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