Vision

Question 1

Sensation

Answer 1

The ability to detect a stimulus and turn that detection into an experience

Question 2

Perception

Answer 2

Give meaning to detected sensation

Question 3

Unconscious actions can

Answer 3

Propel us to act

Question 4

Bottom up

Answer 4

Triggered by external stimulus which impacts a sense organ

Question 5

Top down

Answer 5

Triggered internally by memory knowledge or experience

Question 6

Visual neurons have been found to respond to weak light signals

Answer 6

If accompanied by a loud sound

Question 7

Synesthesia

Answer 7

One neural pathway from a sense organ diverges and is sent to a different party of the brain that normally processes a different stimulus

Question 8

Cornea

Answer 8

Transparent thin layer
Bends light inward
Pulls light to pupil

Question 9

Pupil

Answer 9

Opening in center of iris

Responds to emotions

Question 10

Iris

Answer 10

Colores

Dilate and contract/regulate light entering eye

Question 11

Lens

Answer 11

Focus close/bulge

Focus far/flaten

Question 12

Retina

Answer 12

Sensory receptor for vision
Fovea/ image focuses
Packed with rods and cones
From Retina neural impulses leave eye via optic disk to enter brain

Question 13

First two layers of retina

Answer 13

Send signals to visual cortex

Don’t respond to light

Question 14

Third layer of retina

Answer 14

At back

Where rods and cones are located

Question 15

Cones

Answer 15

Color, fine detail, focus on light,
Red
Green
Blue

Question 16

Rods

Answer 16

Helps adapt to dark places
Bright places
Dim light
Black and white

Question 17

Vision as neural impulses

Answer 17

Transduce light waves into neural impulses
Impulses travel across optic nerve to brain
At optic chiasm the brain crosses to opposite sides

Question 18

Optic chiasm

Answer 18

Fibers carrying info from both left sides of retina go to left optic Tract

Question 19

Lateral geniculate

Answer 19

Lateral geniculate nucleus of thalamus

Question 20

The visual cortex

Answer 20

Approximately 30 visual areas in the human brain are organized into a hierchy

Question 21

Where pathway

Answer 21

Upper dorsal route

Lesion in parietal lobe

Question 22

Ungerleider and mishkin

Answer 22

Ablation, they removed parietal lobe from half monkeys and half of temporal lobe from other half
Temp-trouble in what
Parietal- trouble in where
Occipital to other lobes

Question 23

Sing dissociation

Answer 23

Two functions(see touch)
Operate in different mechanisms
But work together

Question 24

Double dissociation

Answer 24

Two functions (speech production, language comprehension)
Involve different mechanisms
Operate independently

Question 25

Object recognition area

Answer 25

Bottom of temporal lobe Human faces dealt with This is one of first stops after info has reached occipital lobe Other areas include emotional and memory

Question 26

Inferotemporal cortex in monkeys Faces/heads Perception module Temporal damage causes prosopagnosia

Answer 26

Yeah that was the answer

Question 27

Look at someone you don't know

Answer 27

Primary visual cortex-face-recognition area (lower temporal lobe)

Question 28

Look at someone you know

Answer 28

Primary visual cortex- face-recognition area( lower temporal lobe)- amygdala

Question 29

Upside down pictures of faces aw sent to areas of brain not sensitive to facial features

Answer 29

Yeah that's all

Question 30

Sensory code

Answer 30

Representation of perceived objects through brutal firing

Question 31

Specificity coding

Answer 31

Specific neurons to specific stimuli

Question 32

Binocular disparity

Answer 32

Differences between two retinal images of same scene

Question 33

Occulomotor

Answer 33

Accommodation change focus Convergence inward eyes Divergence out ward eyes

Question 34

Monocular clues

Answer 34

Interposition obstruction of object means it comes first Linear perspective train tracks Height/size/shadows Aerial perspective =mountains Motion parallax= images move faster when closers

Question 35

After image | Negative afterimage

Answer 35

Image after stimulus removed Opposite polarity