Kat Johnson
Flashcards by Kat Johnson, updated more than 1 year ago
Kat Johnson
Created by Kat Johnson over 7 years ago


A1a1- A1b5

Resource summary

Question Answer
Perception The way our brain makes sense of the visual image detected by our eyes
Retina The light sensitive layer at the back of the eye. It is made up of nerve cells called rods and cones
Rods Light sensitive cells in the retina that respond even in dim light
Cones Light sensitive cells in the retina that can detect colour
Optic nerve Bundle of nerve cells that leads out from the retina at the back of the eye. It carries information fro the rods and cones to the brain
Blindspot The area of the retina where the optic nerve leaves. It has no rods or cones so cannot detect light
Optic chiasma The cross shape where some of the information from the left and right eye crosses over to pass over to the opposite side of the brain
Visual Cortex The area at the back of the brain that interprets visual information
Depth cues The visual 'clues' that we use to understand depth or distance.
Monocular depth cues Information about distance that come from one eye. such as superimposition, relative size, texture gradient, linear perspective and height in the plane
binocular depth cues Information about distance that needs two eyes, such as stereopsis
Size constancy We perceive an object as the same size even when its distance from us changes
Relative size Smaller objects are perceived as further away than larger objects
Texture gradient An area with a detailed pattern is perceived closer than one with less detail
Height in the plane Objects closer to the horizon are perceived to be further away than ones above or below the horizon
Superimposition A partly hidden object is perceived to further away than the object covering it
Linear perspective Parallel lines appear to converge in the distance
Stereopsis A binocular cue to depth. The greater the difference between the view seen by the left and right eye, the closer the viewer was looking
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