Organization Of The Sensory System

Question 1

Sensory Receptors and their types

Question 2

Describe Transduction

Question 3

All cells/organs have a that dictates the scope of sensory information they can register

Question 4

Receptor sensitivity is decided by which two factors

Question 5

Rapidly Adapting Recptors v Slow Adapting Receptors

Answer 5

Rapidly adapting receptor s respond to stimuli quickly but the sensation isnt long lasting even when the stimuli stays there
Slow adapting take longer to respond but stay respondsive longer

Question 6

Exteroceptive v Interoceptive

Answer 6

Exteroceptive is awareenss of ones outside environment and interoceptive is awareness of ones own self and sensory stilumi coming from the self

Question 7

Optic Flow v Auditory Flow

Answer 7

Optic flow is the amagamation of visual input we experience when things are in motion, audtory flow is the same concept but with sound

Question 8

Define receptor density

Answer 8

Receptor density is how many receptos are in any given area where those small spaces with

Question 9

What is Two-Point sensitivity? Why is it important?

Question 10

Describe color receptors in the fovea

Question 11

Describe receptors in the peripheral retina

Question 12

List the steps of somatosensory reception

Question 13

Define Neural Relays. Neocortical Neural Relays?

Question 14

Periaqueductal Grey Matter

Question 15

Describe Gating. Why is it important?

Question 16

How are Sensory Encoding and Transduction Related

Question 17

Encoding of Qualitative vs Quantitative Stimuli

Answer 17

Qualitative stimuli such as color is generally dealth with by differing senory receptors where as

Question 18

Define Colour Constancy and describe its relation to perception binding

Question 19

What are the Theories of Sensory Distinctions

Question 20

Each sensory system can be broken down into….

Answer 20

subsytems

Question 21

What’s a special quality about olfactory receptors?

Answer 21

They connect directly to the cortex, thus they dont need the thalamus nor basla ganglia to rpoject onto the neocortex

Question 22

What is special about the suprachiasmatic nucleus?

Question 23

Define Topographic Organization and describe its importance

Question 24

Rods v Cones

Answer 24

Rods: senstivie to light and dark- black nd white

Question 25

Bipolar Cells

Answer 25

Has a denrite on one side an an axon on the other side

Question 26

Retinal Ganglion Cells (RCC)

Answer 26

Combine to form the optic nerve

Question 27

True or False: Descending messages from the cortex can block pain signals (i.e. gating) but cannot amplify them.

Answer 27

False

Question 28

Voluntary eye movements are largely regulated by neural circuits centered in the_____.

Answer 28

Frontal Eye Fields

Question 29

True or False: Among the symptoms of damage to the geniculostriate system is visual ataxia, or the inability to recognize where objects are located.

Answer 29

False

Question 30

_____is our tactile perception of objects.

Answer 30

Hapsis

Question 31

True or False: The fibers of somatosensory neurons that make up the hapsis and proprioception system are relatively large, heavily myelinated, and for the most part, rapidly adapting. In comparison, anterior spinothalamic tract nociceptive fibers are somewhat smaller, less myelinated, and more slowly adapting.

Answer 31

True

Question 32

A patient who cannot locate the position of her limbs in space unless she is looking at them is suffering from a loss of_____.

Answer 32

proprioception

Question 33

True or False: Associators experience sensory mixing as reality, whereas projectors experience sensory mixing in their minds’ eye.