Flashcards in Week 4 Deck (11):
What happens when the small involuntary eye movements are stabilised?
Edges of objects fade, entire object disappears completely, space previously occupied is filled in by brain
Explain the Boundary Extension phenomenon:
When recalling a scene, a broader view of teh scene is 'recalled' compared to what was given.
When retaining visual information the _____ is well represented, but the ___ is not.
meaning (gist), surface properties.
What receives input from receptor cells to 'see' small receptive fields in vision?
Sort the flow of synapses through the visual pathway. Occipital lobe, LGN, Optic nerve, Superior Colliculus
Optic Nerve, LGN, OL, SC
Ganglion and LGN cells respond to
dots of light on the retina
Functions of the superior colliculi are:
guiding eye movements, locating objects in space
Functions of the LGN are:
Where does the LGN project to?
The visual cortex in the occipital lobe
What would happen if there were no small eye movements, i.e. no change in retinal images???
Borders fade, object disappears, space filled in by brain - similar to blind spot. The neuron 'assumes' the neuron next to it is receiving the same input that it is.