Occipital Lobe

Question 1

Main function of the primary visual cortex?

Answer 1

Major destination of visual information from both eyes (received from photoreceptors in retinae)

Question 2

Explain how each eye receives and processes visual info.

Answer 2

The left half of each retina processes info from right visual field; right half of each retina processes info from the left visual field; they are sent to the primary visual cortex on opposite side. ; info from the centre of the visual field is processed by the centre of each retinae and both PVC’s

Question 3

How do the association areas of the occipital lobe enable visual perception?

Answer 3

Interacts with the primary visual cortices to select, organise and integrate visual information.
Interacts with other association areas to integrate visual information with other information (memory, language and sound) to be organised and interpreted.

Question 4

Can neurons involved in processing different features of visual information respond to both one or multiple features of info?

Answer 4

YUS

Question 5

What might damage to the primary visual cortex cause?

Answer 5

unable to process any visual stimuli that their eyes see

Question 6

What might damage to the association areas cause?

Answer 6

Difficulty in recognising whole objects by sight, only being able to describe parts (it is tricolour and furry - it is Harry the dog)
Visual agnosia

Question 7

Define: visual agnosia

Answer 7

WHen a person can recognise someone by their voice but not their face.