Test One CH 6 Flashcards

1
Q

What is Sensation

A

process by which stimulation leads to processes in the brain

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2
Q

General functions of the sensory system

A

Detect Enviromental inputs, encode enviromental energy, relay info to brain

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3
Q

Transduction

A

transfering info about sensory stimulai into action potentials

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4
Q

adaptation

A

decreased responce to unchanging stimulai, like we forget we are wearing a watch

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5
Q

sensory receptors

A

specialized cells that detect certain forms of stimulai

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6
Q

Wavelength, Frequency and Amplitude

A

W - distance between waves peaks
F- how many times in a unit of time
A how high

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7
Q

Can we see all electromagnetic waves?

A

No only red to violet

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8
Q

Photoreceptiors

A

On the retna
Rods - light sensitivity
Cones - Wavelength

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9
Q

Trichoromatic Theory

A

3 types of cones

red blue, and green

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10
Q

Color Blindness

A

One of the 3 cones are faulty

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11
Q

Opponent-process theory

A

three pairings of color sensitive visual elements
Red/Green
Blue/Yellow
Black/White
Only one member can be active at a time, the other inhibits. Pairs in the ganglion cells.
Explains after images.

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12
Q

Middle ear

A
Amplified sound 
Contains 
Typanic membrane (eardrum)
Ossicles (bones hammer anvil and stirup)
Oval window
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13
Q

Place theory

A

different sounds vibrate at different places along the basilar membrane

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14
Q

Frequency-matching theory

A

Auditory nerves fire an action potential of the frequency you are hearing.

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15
Q

Conduction Deafness

A

deafness to the middle ear and amplification

you can use hearing aids

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16
Q

Nerve/ sensorineural deafness

A

Inner ear, cochlear implant.

17
Q

somatosensation

A

sense to the skin.

18
Q

Bottom up processing

A

Analyzing info from senses
breaks things into their parts
important in first encounters

19
Q

Top down processing

A

Knowlege and expectations based on context and experience

20
Q

perceptual set

A

mental predisposition that creates bias, such as priming