329485
Description
Flashcards by Kat Johnson, updated more than 1 year ago
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Created by Kat Johnson
about 11 years ago
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| 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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