Lecture 5

Question 1

Commonalities

Answer 1

There is a primary sensroy cortex
All have maps (laid out in a specific way)
Primay sensory cortices secondary, have hiarchy

Question 2

Sound

Answer 2

Vibration,
Travel through pressure waves
Frequency, high low pressure

Question 3

Outer ear

Answer 3

Captures sound waves

Question 4

Pinna

Answer 4

Amplifies certain frequences of sound infront

Deminishes sound from behindu s

Question 5

Middle ear

Answer 5

Recivies virbations of ear drum
3 ossicles: malleus incus and stapes
Oval window - where bones transfer enegery to

Question 6

Inner ear

Answer 6

Cocheal
Basilar membrane- exposed to fluid waves trigged by oval window
Basial high apical low frequnces
Tonotopic map

Question 7

Transduction of sound

Answer 7

Closing and opening of CA channels.

Question 8

Organ or corti

Answer 8

Outer hair cells - logged into membranes, cells movement and lenthing causes an amplifation of the sound

Question 9

Tonotopic map

Answer 9

Charateristic frequences- inner hair cells respond to characteris frequnces, neighbors cells respond to similar frequency
Complex sounds ar eborken down to their component frequencies

Question 10

Labeled line coding

Answer 10

Each neuron has one speciifc type of sensory information

Question 11

Somatosensory system

Answer 11

Ability to detect snesory infomraiton from the body

Question 12

Touch

Answer 12

Mechanoreceptors - pressure vibration

Thermorecpetors tempeature change

Question 13

Recpetive field

Answer 13

Area of skin that actives a sensory receptor

Question 14

Congential analgesia

Answer 14

Inability to feel pain

Question 15

Chronic pain

Answer 15

Acute pain adaptive. Not chronic pain

Question 16

Nociceptors

Answer 16

Mechanical - physical dmg caused by pressure
Thermal heat or col
Chemical toxic
Polymodal combinatioons of harmful stimuli

Question 17

Proprioception

Answer 17

Allow us to sense where our body parts are moveing etc
Muscle spindles limit streching of muscles
Golgi tendon organs limit muscle contraction

Question 18

Somatosensory pathway

Answer 18

Face - trigeminal pathway
Body - spinal cord
Dermatomes - body organization

Question 19

Chemical sesnse

Answer 19

Taste and smell

Question 20

Fustatory pathways oflaction pathway

Answer 20

relies on taste recprds on the tongue

Smell

Question 21

Tastants

Answer 21

Chimeicals that can depolarize taste cells

Question 22

Smell

Answer 22

scents introduced in the Olfactory epithelium

Question 23

Anosognosia

Answer 23

Lack awareness of their own pphysiacl impairments