lecture 4- attention and consciousness part 2 Flashcards
we attend to an object as a…
whole irrespective of where we told to pay attention to- we are faster with the same object than a different object
what does the fMRI measure in object based tasks?
how much does the neurons fire more between these three conditions.
what is the spatial cuing paradigm?
fixation, then cue (arrow shows where to look), delay (8s) and stimulus.
what is the network triggered by top-down processing…
fronto-parietal network- voluntary attention.
bottom-up processing is involved…
novelty and attentional reorienting
bottom up is more in the…
lateral parts of the parietal and frontal cortex are active.
top down processing…
medial parts of the parietal and frontal cortex.
the super colliculus…
is important in directing attention and our eyes and it is a more ancient part of our brain suggesting that other animals also experience attention.
define neglect
not able to percieve some in on one of your fields
extinction
is when the competition of one stimulus makes the other stimulus go extinct.
unilateral spatial neglect is found…
in the superior temporal gyrus
what is an example of spatial based neglect
when only copies the right part of an image because they are unable to see the left side of the whole image
what is object based neglect?
in the paitent copy of the image they ignore the left side of the object they are drawing - superior temporal gyrus
what is attentional memory deficit?
where memory recollections of the world suffer from neglect as well- the memoy that is suffering- if right is lesioned to then see my left side we would have to rotate so the other visual field covers that side
