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Flashcards in Chapter 2 Deck (20)
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1

ventral pathway

processes information that leads to the recognition and identification of objects.

2

critical periods

animals must develop particular responses. e.g. you must have both eyes uncovered during a critical period if you want to use both eyes properly in the future.

3

visual field

portion of the world is visible at the present moment.

4

receptive field

area of the visual field in which a stimulus will affect the activity of a cell. If we are talking about a cell that responds to touch, the receptive field would be a patch of skin.

5

tilt afterafffect

visual illusion in which prolonged adaptation to an oriented stimulus causes shifts in subsequent perceived orientations.

6

akinetopsia

motion blindness

7

achromatopsia

cortical colorblindness

8

gestalt grouping principles

guide the visual system and produce our perception of what goes with what. proximity, uniform connectedness, similarity, proximity, colinearity, reliability, putting parts together.

9

subjective or illusory contour

a stimulus that is not physically present but is filled in by the visual system.

10

binding problem

how we associate different features, say, shape, color, and orientation, so that we perceive a single object?

11

recognition

matching representations of organized sensory input to stored representations in memory.

12

agnosia

"without knowledge" comes from damage to the brain, not sensory organs.

13

viewpoint dependence

an object can be viewed from an infinite combination of possible angles and possible distances, each of which projects a slightly different two-dimensional on a plane and on the retina.

14

template

pattern, like a cookie cutter, or stencil.

15

geons

simple 2D and 3D forms such as cylinders, cones, and the like.

16

priming

occurs when a stimulus or task facilitates processing a subsequent stimulus or task - "greases the skids"

17

face superiority

demonstrates that the parts of an upright face are not processed independently, but rather are recognized in the context of the whole face.

18

bistable perception

we can perceive both interpretations, but only one at a time.

19

binocular rivalry

a state in which individual images to each eye compete.

20

apraxia

inability to make voluntary movements even though there is no paralysis.