Psy581 exam 3

Rah receptor responds to a wide range of stimuli and contributes to the perception of each of them. This type of coding is referred to as

Across fiber

After eating salty pretzels the salty potato chips will taste less salty because of

Adaption

What is a dermatome

An area of the skin undervalued by a given spinal nerve

A tonotopic map refers to

An auditory cortex map of sounds

The receptors for taste are like skin cells in that they

Are continuously being replaced

The eighth cranial nerve contains both a _____ component and a ____ component

Auditory , vestibular

According to frequency theory the

Basilar membrane vibrates in synchrony with a sound , producing action potentials at the same frequency

Each spinal nerve has

Both sensory and motor component

People with conductive deafness

Can benefit from surgery or hearing aids

Reduced response to one taste after exposure to another is referred to as

Cross adaptation

Meissners 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

A mild pain stimulus is associated with a release of

Glutamate

Which two factors determine whether or not there will be a sound shadow

Head size and frequency

Itching he primarily the result of

Histamine release

How many kinds of olfactory receptors do we have

Hunnit

Analogous to lateral inhibition, when olfactory receptors are stimulated they

Inhibit the activity of other receptors

The receptors for taste are

Modified skin cells

What does the vestibular system detect

Movement of the head

The vomeronasal organ VNO is a set of receptors located

Near but deprecate from the olfactory receptors

What kind of deafness is the result of damage to the cochlea or the hair cells

Nerve

Olfaction receptors carry their messages to the

Olfactory bulb

The brain chemicals known as endorphins and enkephalins produce effects Similar to what substance

Opiates

He vestibular organ consists of

Otolith organs and semicircular canals

Somatosensory information travels from the thalamus to which areas of the cortex

Parietal lobe

In the otolith organs the otoliths are calcium carbonate particles that

Push against hair cells when moved

Pacinian corpuscles respond best to

Rapid mechanical pressure

Anti inflammatory drugs such as ibuprofen relieve pain by

Reducing the release of chemicals from damaged tissues

Taste perception in the brain depends on

Relative activity of different taste neurons

Pain receptors of the skin are

Simple bare Byron endings

Olfaction plays a subtle role in

Social behavior

What kind of receptors detect pain warmth and cold

Somatosensory

The sensory aspect of pain activates the ____ cortex whereas the emotional aspect activates the ___ cortex

Somatosensory , Cingulate

What neurotransmitter is released by axons that carry pain information to the brain

Substance p

What are found in papillae

Taste buds

To what lobe of the cerebral cortex is auditory information sent

Temporal

The somatosensory system involves sensation of

The body and its movements

An acceleration of the head in any plane causes

The jelly like substance in one of the semicircular canals to push against hair cells

Which of the following is true about taste receptors

They are located mainly along the outer edge of the tongue

Which of the following assumptions is necessary for the place theory of pitch perception but not the frequency theory

Various auditory neurons respond best to different wavelengths