Sensation and perception

Question 1

What is sensory stimuli?

Answer 1

raw pieces of information that are detected by the five senses.

Question 2

What is sensation?

Answer 2

process of receiving and detecting raw sensory stimuli via sensory organs, and sending this information to the brain.

Question 3

What is perception?

Answer 3

process of selecting, organising, and interpreting sensory information.

Question 4

What is the process of processing visual sensation?

3 steps

Answer 4

1. reception (receiving sensory info)
2. transduction (info converted to neural impulse)
3. transmission (info is sent to brain)

Question 5

What is the process of visual perception?

3 steps

Answer 5

1. selection (certain info is attended to, others ignored)
2. organisation (stimuli attended to is regrouped)

3.interpretation (organised info to have meaning assigned)

Question 6

What are 3 factors contributing to visual perception?

Answer 6

the eye

neurons

the brain (primary visual cortex)

Question 7

How does the eye process light?

Answer 7

light enters eye through pupil,
focused through lens, onto the retina (retina contains photoreceptors)

Question 8

PHOTORECEPTORS

What are rods?

Located where?

Answer 8

allow vision on low levels of light

outer edges of retina

Question 9

PHOTORECEPTORS

What are cones?

Located where?

Answer 9

allow colour vision + fine details in bright light

centre of the retina

Question 10

What is the primary visual cortex responsible for?

Which lobe is it located in?

Answer 10

interpreting and processing visual info recieved from eyes

occipital lobe