perception pt 1

Question 1

what is perception and give an example of it

Answer 1

interpreting something that we sense. while hearing is a sense, loudness is a percept

Question 2

the activation of one sense activating another sense describes which condition?

Answer 2

synaesthesia

Question 3

a person seeing a particular colour for certain letter or numbers is which form of synesthesia?

Answer 3

grapheme-colour

Question 4

what is the McGurk Effect and what does it show us?

Answer 4

a change in auditory perception because of visual input (we hear what we see). it shows that there is an integration of sensory information

Question 5

extramission belief states…

Answer 5

eye emit rays when perceiving something

Question 6

list 4 processes in early visual processing

Answer 6

1. light waves enter eye on retina 2. photoreceptors in retina convert light into electrical activity 3. electric signal sent to bipolar cells and then ganglion cells 4. signal exits through optic nerve to the brain

Question 7

why do we experience blindspots?

Answer 7

there are no photoreceptors at the ‘exit location’

Question 8

what happens in late visual processing?

Answer 8

primary visual cortex contains specialized regions that process visual features

Question 9

what is a visual association area

Answer 9

they interpret visual information and give meaning

Question 10

what are the two pathways of the visual association areas, what do they do, and where are they?

Answer 10

ventral: process shapes, size, etc in the occipital to temporal lobes
dorsal: process location, space, etc in the occipital to parietal lobe

Question 11

true or false: perception is not constructive

Answer 11

faux

Question 12

true or false: our perception is up to speed

Answer 12

false, there is a slight delay

Question 13

Blindsight, subliminal priming and backward masking experiments are forms of what?

Answer 13

implicit perception

Question 14

what is blindsight?

Answer 14

damage to the primary visual cortex where patients have no awareness of stimuli in their damaged visual field but can correctly respond to questions about objects in that field. perceiving without seeing

Question 15

what is the backward masking technique

Answer 15

quickly presenting stimuli. masking stimuli with a second stimuli which reduces visibility and makes it unavailable to conscious report. stimuli still influences behaviour on subsequent tasks

Question 16

true or false: top down cognition influences visual perception (our schemas and prior knowledge affects our perception)

Answer 16

true!