lecture 18 Flashcards
attention
attention is what
narrowing of awareness to a particular part of the sensory environment
attention is top down or bottom up
top down, takes time and ocnscious effort (usually)
automatic processes
occur unconsciously, innate or trained, bottom-up and driven by sensory input
conscious operations
require focused attention, top-down, requiring cognitive input and control
feature integration
when you have to conduct a visual search for the odd thing out, top down
when visual stimuli pops out at you is it bottom up or top down
bottom up, its automatic an unconscious
feature search
strategy for scanning environment for an object with a certain set of features
priority maps
encode stimuli location in terms of behavioural significance
where are priority maps found
frontal eye fields, lateral intraparietal areas and superior colliculus
divided attention
dividing attention between tasks means lower efficiency for each task since we have a limited mental capacity
can you really multitask and do two things at once
no, you’re switching between tasks very fast
if only one object is in the attentional spotlight, visual systems can ____ properties
bind all properties together
if multiple objects are in the attentional spotlight, then what?
cells seem to process diff objects in parallel to differentiate between them
when you have to divide your attention across two modalities at the same time, what area is there an increase in
the left dorsolateral prefrontal cortex
if a moving light was in the left visual field, which cortex is active
the right parietal
