Quiz 5
Module 5 (Sensation & Perception)
Question 1
An MRI determines that a patient has damaged their basilar membrane in one ear from the center to the apex. Which of the following frequencies will they be unable to hear from that ear?
A. 7,000 Hz
B. 12,000 Hz
C. 11,000 Hz
D. 15,000 Hz
Answer
A. 7,000 Hz
From the apex to the center, the basilar membrane resonates with low frequencies. If this half is damaged, the patient would be unable to hear pitches below 10kHz, which is halfway between the lowest and highest pitches humans can perceive.
Question 2
Tinnitus is an auditory disorder categorized by a constant perception of high-pitched “ringing” in the ears. It is often caused by damage causing certain hair cells to constantly send signals to the auditory cortex. According to the textbook, where on the the basilar membrane are these hair cells likely located?
A. At the apex of the basilar membrane
B. Near the center of the basilar membrane
C. Spread throughout the basilar membrane
D. At the base of the basilar membrane
Answer
D. At the base of the basilar membrane
If the ringing is high-pitched, the damage would be near the base of the basilar membrane. The base resonates with high frequencies due to its rigidity.
Question 3
After being in a car accident, your uncle has an inability seeing objects far away. What part of the eye might your uncle have received damage?
A. Iris
B. Cornea
C. Pupil
D. Lens
Answer
D. Lens
The lens is in charge of focusing images, both near and far.
Question 4
According to the textbook, which of the following mechanisms would be most difficult for someone who is deaf in one ear?
A. Vestibular sensing
B. Localizing the source of a sound
C. Temporal coding
D. Place coding
Answer
B. Localizing the source of a sound
Sound localization relies on binaural cues, which require both ears to detect differences in sound arrival time and intensity.
Question 5
You see a group of people having a conversation across the street, yet you cannot hear them. According to the textbook, which of the following is the likely reason you are not able to hear them?
A. Sensory adaptation prevents you from hearing their voices against background noise
B. The volume of their voices is below your absolute threshold of hearing
C. Their voices are not unique enough to reach your difference threshold
D. Auditory fatigue decreases the output volume of their voices
Answer
B. The volume of their voices is below your absolute threshold of hearing
The absolute threshold is related to the minimum amount of a stimuli required before your brain detects the sensory input.
Question 6
According to the textbook, when staring at a moving object for too long, how would a direction-specific neuron react?
A. It will become less sensitive to movement
B. Motion will suddenly stop
C. Motion will become in unison D. It will cause you to perceive the moving object to move in another direction
Answer
A. It will become less sensitive to movement
If you stare at a moving sensory input for long enough, the direction-specific neurons adapt to the motion and become less sensitive and fatigued.
Question 7
What is the psychological perception of the height of a sound wave?
A. Amplitude
B. Loudness
C. Timbre
D. Pitch
Answer
We perceive the amplitude of a sound as loud or soft.
Question 8
What is the process called in which sensory receptors convert stimulus input into neural signals that the brain can understand?
A. Perception
B. Stimulation
C. Sensation
D. Transduction
Answer
D. Transduction
Transduction refers to the process in which sensory receptors convert external stimuli (like light, sound, or touch) into neural signals that the brain can interpret.
Question 9
What color would a low amplitude, short wavelength beam of light be?
A. Dark blue
B. Bright red
C. Dark green
D. Bright yellow
Answer
A. Dark blue
Blue is a short wavelength color, and darkness is associated with low amplitude waves.
Question 10
What is the psychological perception of the time between one peak and the next in a sound wave?
A. Wavelength
B. Loudness
C. Pitch
D. Frequency
Answer
C. Pitch