15 Questions
What is a possible cause of damage to the facial nerve?
Head trauma
Which condition is characterized by an abnormal connection between the inner and middle ear?
Perilymph fistula
What is a possible explanation for increased sensitivity to sound in people with depression?
Problem with serotonin
Which of the following is NOT a condition linked to increased sensitivity to sound?
Hypertension
What is a possible outcome of exposure to loud sounds?
Increased sensitivity to sound
Which condition is a type of developmental disorder?
Williams syndrome
What is a possible reason for increased sensitivity to sound in people without an underlying medical condition?
Anxiety or stress
Which surgical procedure involves removing and replacing a small bone in the ear with a prosthesis?
Stapedectomy
What is the stapedial reflex responsible for?
Minimizing sound intensity
What might be the result of damage to the facial nerve?
Increased sensitivity to sound
Why do some people find everyday noises excruciating?
They are naturally more sensitive to sound
What is cranial nerve VII also known as?
The facial nerve
What is the primary function of the facial nerve in relation to sound?
To regulate the stapedial reflex
What is an example of an everyday noise that might be perceived as excruciating by sound-sensitive people?
Dishes clanking in the dishwasher
What is the reason for exploring the reasons behind sound sensitivity in this lesson?
To explore the proposed reasons for sound sensitivity in people with normal hearing
Study Notes
Sensitivity to Sound
- Increased sensitivity to sound can occur due to various medical conditions, trauma, or exposure to loud sounds.
- Conditions linked to increased sensitivity to sound include Bell's palsy, Lyme disease, Ramsay Hunt syndrome, depression, PTSD, Williams syndrome, Meniere's disease, stroke, stapedectomy, perilymph fistula, multiple sclerosis, autism spectrum disorders, and chronic fatigue syndrome.
The Facial Nerve
- The facial nerve (cranial nerve VII) is responsible for controlling facial expressions and the stapedial reflex.
- The stapedial reflex minimizes sound intensity, and damage to the facial nerve can disrupt this reflex, leading to increased sensitivity to sound.
- The facial nerve can be damaged due to various reasons, including head trauma, surgery, and inflammation.
Causes of Increased Sensitivity
- Exposure to loud sounds, either suddenly or over time, can lead to increased sensitivity to sound.
- Psychological issues related to trauma or loud noise can contribute to increased sensitivity.
- Stress, anxiety, and fatigue can also increase sensitivity to sound by altering the release and response of biochemicals.
Characteristics of Sound Sensitivity
- People with increased sensitivity to sound may perceive normal-volume sounds as extremely loud or excruciating.
- Sound sensitivity can occur despite normal hearing abilities.
Discover how people respond to different levels of noise, from extremely loud music to everyday sounds like dishes clanking. Take this quiz to learn about sensitivity to sound and its effects on individuals.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
