Neuro psych Quiz 6 Flashcards
Where are the auditory receptors, known as hair cells?
Along the membrane of the cochlea
The frequency theory of pitch perception applies to what type of sound?
Low-frequency sounds, up to about 100 Hz
Which brain abnormality has been demonstrated in people with amusia?
Fewer than average axons connect the auditory cortex to the frontal cortex
Absolute pitch is more common among what type of people?
People with extensive musical training beginning in early childhood.
What happens to people after damage to the primary auditory cortex?
They can identify and localize sounds, but they cannot understand speech or enjoy music.
What is meant by a “tonotopic map” ?
Each location in the auditory cortex responds to a preferred tone, and these areas are arranged in order form low pitches to high pitches.
Infections or bone growth that prevent the middle ear from transmitting sounds properly to the cochlea produce which type of deafness?
Conductive deafness
Many older people have trouble understanding speech in spite of wearing hearing aides, especially under which circumstances?
A noisy room
Localizing sounds by intensity differences works best for which pitches?
High-frequency sounds
Which of the following activities would be most impaired after damage to the vestibular system?
Reading street signs while walking
Why can women on average detect thinner grooves with their fingers than men do?
On average, woman’s fingers are smaller
To what extent does the nervous system maintain separate representations of touch, heat, pain, and other aspects of somatic sensation?
Different types of sensation remain separate eve in the cerebral cortex
If disease damages someone’s myelinated somatosensory axons without damaging the unmyelinated axons, what kind of sensation would the person lose?
Touch
Suppose you suffer a cut through the spinal cord on the left side only. For the part of the body below that cut, you will lose pain sensation on the — side of the body and touch sensation on the —- side
1) right
2) left
Hurt feelings activate the same brain area as which sensation?
Pain
Do placebos relieve pain just by relaxation? and what is the evidence?
No. A placebo can relieve pain in one body part without affecting another
Which chemical relieves pain by damaging the mitochondria in heat receptors?
Capsaicin
Why do many people suffer chronic pain long after an injury has healed?
The brain learned to increase its pain perception
Which sense has the slowest axons to the brain?
Itch
Which type of sensation inhibits itch sensations
Pain
How long does a taste receptor last?
Two weeks or less, the same as skin cells
What do the observations about taste adaptation and cross-adaptation imply about taste receptors?
The receptors sensitive to one taste are different from those for another taste.
Umami refers to the taste of which substance?
Glutamate
Why is it possible for us to taste a wide variety of chemicals as bitter>
We have 25 or more types of bitter receptors.
