attention Flashcards
attention
narrowing or focusing awareness selectively to a part of the sensory environment or to a class of stimuli
consciousness
synonymous at primary level with awareness, and at secondary level with awareness of awareness (first person experience of events you are aware of)
attention is primarily a ____ process
top-down
is attention selective?
yes, from specific part of sensory world (point in space or an object)
is consciousness selective?
no, summarizes all info pertinent to the individual and its environment
alerting network
reticular activating system (RAS), locus coeruleus (noradrenaline)
alerting network works to prepare what
alertness, especially in prefrontal and posterior parietal cortex, for detecting stimuli rapidly
where does alerting network prepare
prefrontal and posterior parietal cortex
orienting network
acetylcholine! prioritizes sensory input by selecting a sensory modality or location in space
locus coereleus has what
noradrenaline
orienting network has what
acetylcholine
what does orienting network prioritize
sensory input
dorsal attention system
top-down visuospatial; Right-lateralized (neglect syndrome)
default mode network
thinking about one’s past, the future, or mind wondering
where is default mode network?
mPFC, PCC, medial temporal areas