chapter 9 Flashcards
(24 cards)
attention
set of processes that allow us to select or focus on some stimuli
selected attention
process that allows us to focus on one source when many are present
divided attention
process of attending to multiple sources of information
automacity
processes that don’t require attention
covert attention
when your visual direction doesn’t line up with your direction of gaze
overt attention
when your visual attention lines up with your direction of face (fovea)
stimulus onset asynchrony
difference in time between the occurrence of one stimulus and occurrence of another, cue and target
inattentional blindness
phenomenon where people fail to perceive an object or event that is visible but not attended to
stimulus salience
features of objects in the environment that attract our attention
attentional capture
process where a salient stimulus causes us to shift our attention to that stimulus
visual search
looking for a specific target among distracting objects
feature search
search for a target where the target is specified by a single feature
conjunction search
search for a target where the target is specified by a combination of features
feature integration theory
some features can be processed in parallel and quickly before using attentional resources
other features require us to use attention serially, takes longer
rapid serial visual representation (RSVP) paradigm
method of studying attention
series of visual stimuli appear rapidly in time at the same point of visual space
attentional blink
respond less rapidly or not at all to the second appearance of a target in an RSVP task when the second target occurs within 500ms of the first target
repetition blindness
failure to detect the second target in an RSVP task when the second target is identical to the first and when the second target occurs within 500ms of the first target
orientating/dorsal attention network
neural system
located primarily in the parietal lobe
allows us to engage in visual search, direct visual attention to different locations in space
executive attention network
inhibitory control, inhibits natural responses aka focus on work in a noisy environment
frontal lobe
acts as the top down control of attention
hemifield/ unilateral visual neglect
condition, consequence of neurological damage to the posterior parietal lobe
failure to attend to visual stimuli on one side of the visual world (usually left)
balint’s syndrome
condition, damage to the left and right posterior parietal lobe
rarely move eyes, difficulty grasping
stimultagnosia
deficit in perceiving more than one object at a time
perceptual bistability
phenomenon where a static visual image leads to alternating perceptions
binocular rivalry
phenomenon where seperate image is presented to each eye
