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Sensation
N/A
28
Psychology
Undergraduate 1
03/17/2012

Additional Psychology Flashcards

 


 

Cards

Term

 

transduction

Definition

 

 

process which we can convert enviro energies

into action potential and N.T. releases them

Term

 

5 senses

Definition

 

Vision

Audition (hearing)

Gustation (tasting)

Olfaction (smell)

Somatosensation (touch)

Term

 

Trichromatic Theory

Definition

 

color vision theory the cells receptive to 3 colors

-have Blue, Red, Green sensors

Term

 

Opponent-Process Theory

Definition

 

Color Vision Theory

-cells receptive to 2 complementary colors

Term

 

What nerve cells are capable of

performing transduction?

Definition

 

cranial/spinal nerves

(pick up sensory information and bring it to CNS)

these are UNDIFFERENTIATED signals

Term

 

 

Receptor Organ

Definition

 

 

responsible for focusing environmental energies

onto our sensory system

Term

 

 

Cornea

Definition

 

 

transparent covering of the eye

Term

 

 

Iris

Definition

 

 

-colored region

-muscle that controls amount of light that enters

Term

 

 

pupil

Definition

 

 

hole left by the iris to let light in

 

larger pupil smaller the iris and vice versa

Term

 

 

Lens

Definition

 

 

-located behind pupil

used to focus light

-muscle holds the lens in position to let light in

Term

 

 

cataract

Definition

 

 

milky covering of the lens

 

(disease-glocoma)

Term

 

 

Retina

Definition

 

 

back of eye 

visual receptors (photoreceptors) found here

Term

 

 

Forea

Definition

 

 

spot of greates visual acuity (see in most detail)

-middle/center where cones located

Term

 

 

aqueous humor

Definition

 

 

"water-like" fluid btwn the cornea and iris

 

Term

 

 

vitreous humor

Definition

 

 

thicker fluid ("blood like") found btwn lens and retina

-gives eye its shape

Term

 

 

RODS

Definition

 

-able to see in dim light

-black and which

-120 million

-periphery of retina

-more sensitive (but lack aquity)

-lower threshold

Term

 

tepetum

Definition

 

 

shiny memebrane back of cat/dogs eye allow

them to have better night vision

 

(cats/dogs only have rods)

Term

 

 

Cones

Definition

 

 

-high aquity

-color

-center of retina (fovea)

-6-7 million

Term

 

 

Ganglia

 

Definition

consists of bipolar and ganglion cells

 

one ganglion to two bipolar to 3 rods 

(rods sensitive vc signals on each get summed up as they move to other cells- summation)

 

one ganglion to one bipolar to one cone (1:1)

(high acuity)

Term

 

 

Visual pathway from eye to primary 

visual cortex

Definition

optic nerve :(bundle axons split to form -->)

optic chiasm: (axons plit and cross over; Chi (X) cross at this                  

                     point; nasal portion goes to opposite side R to L

                     and L to R; temporal portion goes straight back

                     (stay on same side))

optic tract : relay station

thalamus (LGN-relay continued)

primary visual cortex (occupital lobe) : here it can spread out

Term

 

 

Outter Ear

Definition

 

(1) pinna: focus and funnel sound into 

auditory canal

 

(2) auditory canal: funnel sound to middle ear

Term

 

Middle Ear

Definition

 

 

(1) tympanic membrane: eardrum

 

(2) ossicles: hammer stirrup anvil

Term

 

 

Inner Ear

Definition

 

 

Cochlea

-stirrup hits this and straightens it out

-->hair cells pic up auditory infor

Term

 

 

Receptors in the auditory system

Definition

 

 

hair cells

Term

 

Glaucoma

Definition

 

 

When aqueous humor cant flow bc blocked chambers

-gets tight

Term

 

 

Sclera

Definition

 

 

White part of the eye

Term

 

What typ eof neurons exist on the retina?

Definition

 

Bipolar and gangion cells

-ganglion cells come together to form the optic nerve

 

optic nerve's axon leave eye and travle towards the brain

Term

 

Travel of sound waves

Definition

sound wave bounce off eardrum then transmit sound to bones

hammer hits anvil hits stirrup  then goes to cochlea

cochlea uncurls

hair cells pick up sound waves and preform transduction

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