Chapter 6
Following exposure to painful stimuli, brain activation is limited to the somatosensory cortex.
False
The Pacinian corpuscle detects sudden displacements or high-frequency vibrations on the skin.
True
What is the intensity of a sound wave called?
amplitude
Pitch is a perception related to which aspect of sound?
frequency
What kind of deafness is the result of damage to the cochlea or the hair cells?
nerve
Many women living in a college dormitory will gradually begin to synchronize their menstrual cycles. The research indicates that this is, at least in part, based on ____.
pheromones
The structure that we commonly refer to as the ear (on the outside of the head) is formally known as the ____.
pinna
To what lobe of the cerebral cortex is auditory information sent?
temporal
The ability to hear a note and identify it perfectly is called ____.
absolute pitch
The scala vestibuli makes up part of the ____.
cochlea
Tinnitus may be ____.
due to a phenomenon like the phantom limb
Meissner's corpuscles are ____.
elaborate neuron endings for touch
The fact that the refractory period limits the firing rate of a neuron is problematic for which of the following?
frequency theory only
Itching is primarily the result of ____.
histamine release
Patients with damage in area MT have problems with perception of ____.
movement of objects and sounds
Where are the auditory receptor cells located?
on the basilar membrane
The tympanic membrane connects to three tiny bones that transmit the vibrations to the ____.
oval window
Humans localize low frequencies by ____ differences and high frequencies by ____ differences.
phase; loudness
Chemicals that prevent sodium from crossing the membrane ____.
reduce the intensity of salty tastes
Anti-inflammatory drugs, such as ibuprofen, relieve pain by ____.
reducing the release of chemicals from damaged tissues
Morphine is effective in relieving ____.
slow, dull pain
When mechanical pressure bends the membrane of a Pacinian corpuscle, ____.
the membrane's resistance to the flow of sodium ions decreases
Which ability would be most impaired with damage to the vestibular senses?
visually tracking an object while dancing
If you are a supertaster, then ____.
you are more sensitive than the average person to nearly all tastes