Lecture 2 part 2 Flashcards
1
Q
Sensation
A
- Reception of stimulation from the environment
- Initial encoding into the nervous system
2
Q
Perception
A
Process of interpreting sensory information
3
Q
Retina
A
- Layer of eye with rods and cones
- Initiates visual sensation and perception
4
Q
Parts of retina
A
- Rods and cones
- Bipolar cells
- Ganglion cells
5
Q
Rods and cones
A
Back layer of neurons stimulated by light
6
Q
Bipolar cells
A
Receive patterns of neural firing from rods and cones
7
Q
Ganglion cells
A
- Receive messages from bipolar cells
- Bundled to form optic nerve
8
Q
Optic nerve
A
Projects neural messages to visual cortex in occipital lobe
9
Q
Fovea
A
- Highly sensitive area of retina responsible for precise, focused vision
- Most cones in fovea
10
Q
Saccades
A
- Movement of eyes from one fixation point to another
- 25ms - 175 ms
- Nothing seen during this time
11
Q
Atkinson and Shiffrin’s 3 stage model
A
- Sensory memory
- Short-term store
- Long-term store
12
Q
How does information accumulate in sensory memory?
A
- Over time
- Not all or none
13
Q
Visual persistence
A
Apparent persistence of visual stimuli beyond its physical duration
14
Q
Capacity of visual sensory memory
A
Capacity is very large
15
Q
What can and cannot codes select from in visual sensory memory
A
- Can select items from display based on location, colour, line/no line
- Cannot select items based on numbers vs letters
