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