The Other Sensory Systems

Produced by Tae Young Lee

Sensor

Decision of Perspective

Things

Bear

(Smell)

Deer

(Sound)

Eagle

(Sight)

Different Senses as

Different Ways of

Knowing the World

Sound and the Ear

Sound

amplitude

loudness

For example(wave equation)

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1

2

1

2Wave Equation

44

3 3

55

Pitch Perception

Place Theory바닥막이피아노선들처럼작용바닥막의각영역이특정주파수에동조.

각주파수는바닥막의특정장소에있는털세포만을활성화

Frequency Theory바닥막이소리와동기화된진동을함그에따라청각신경축색에서그와동일한주파수의활동전위가발생For example) 50Hz의소리는청각신경에서초당 50회의활동전위를발생

Basilar membrane

Auditory cortex

Hearing Loss

■ Exposure of the mother to rubella (German measles), syphilis, or

other diseases or toxins during pregnancy산모가풍진,매독,또는다른질병에걸리거나독성물질에노출된경우

■ Inadequate oxygen to the brain during birth출산시뇌로공급되는산소가부족한경우

■ Deficient activity of the thyroid gland불충분한갑상선활동

■ Certain diseases, including multiple sclerosis and meningitis다발성경화증과뇌막염을포함하는특정질병

■ Childhood reactions to certain drugs, including aspirin아스피린을포함하는특정약물에대한아동기의반응

■ Exposure to loud noises

Sound Localization

Strength

Time DelayPhase

Mechanical Sense

Vestibular Sensation 평형감각1> Look at the image 1> Look at the Image

2> Shaking head 2> Moving the source

Maintain the focus Don’t Maintain the focus

Somatosensory Receptors(1)

Somatosensory Receptors(2)

Input to the Central Nervous System

Pain

Ways of Relieving Pain(1)

아편제와엔도르핀(Opioids and Endorphins)

속임약(Placebos)

대마초제제(관문이론)와캡사이신(Cannabinoids and Capsaicin)

Ways of Relieving Pain(2)

Sensitization of Pain

Quiz> 큰수술을받으려는상황에서최상의고통을줄일수있는최상의방법은?

A.수술전에모르핀을투여하기시작한다.

B.수술에서깨어난직후에모르핀을시작한다.

C.모르핀처치를최대한연기하게적게사용함

Itch

You have at least two kinds of itch.

First. 베인상처치유시피부에서히스타민이방출되어혈관을확장시키고가려운감각발생Second. 특정식물 cowhage에닿으면가렵다.

etc) 노보카인투여 – 감각의마비치과의사가드릴로치아를갈때노보카인사용

The Chemical Senses

당신이버려야할감각을선택한다면?

A. 시각B. 청각C. 촉각D. 통증감각

Chemical Coding

Labeled-line code

Across-fiber pattern code

Taste

Olfaction