week 1

Question 1

What is sensation

Answer 1

the process of sensory organs taking in different stimuli from the world

Question 2

what is perception

Answer 2

how the brain organises and interprets the stimuli based on memory, experiences and expectations

Question 3

what is bottom up processing and what does it rely on

Answer 3

relies on sensation, it takes sensory information and pieces it together to create an image

Question 4

what is top down processing and what does it rely on

Answer 4

relies on perception, it uses memory, prior knowledge and expectations to interpret information

Question 5

bottom up processing example

Answer 5

unscrambling words

Question 6

what is absolute threshold

Answer 6

minimum amount of stimulation to detect a stimulus 50% of the time

Question 7

what is just noticeable difference

Answer 7

minimum amount of difference between two stimuli that can be detected

Question 8

what is an example of just noticeable difference

Answer 8

finding a different shade of colour in similar shades

Question 9

what is the weber fechner law

Answer 9

how we notice changes in stimulus intensity

Question 10

what is an example of weber fechner law

Answer 10

adding 5g of chips to a bag, perception of same amount of chips but increased by 5g