Chapter 7-Attention and Memory Flashcards
memory
nervous systems capacity to acquire and retain knowledge and skills…its a library from which we choose and don’t remember everything
infromation processing
process where we input sensory info and encode it in our memory and store it for later use…works like a computer…input encode, store, retrieve
equipotentiality
memory is distributed throughout the brain not in a single location…ex(hippo-campus, amygdla, prefrontal cortex),,,
atkinson, and Schiffin
when input is made,,,,the unattended sensory memory will easily be lost and or may become short turn memory that can be turned into long-term info
sensory memory
temporary memory lasting fractions of a second and are closely associated with sensory systems…exists like sparklers(lucesitas)…it takes in more than we can store so what we pay attention to, gets remembered.
parrallel processing
processing multiple types of info at the same time…and being able to pay attention selectively while blocking others .ex )looking at a scenery with targets and distractors..so .all black background with a single red circle.
serial processing—-visual search task
processing 1 type of info at the same time..ex..having to sort out red x and ys..where there are various colored letters
visual search tasks
looking for the target that differs on only one dimension(feature)…so looking for the one that differs from the rest….-1 dimension…so red objects
conjunction task
looking for the target that differs on two or more dimensions..(serial and parallel)….ex..target begin something red…and circles so two features(dimensions)
selective attention
ppl dont consciously process unattended stimuli,,,so for example not looking or told there is a gorilla but told to look how many times the black shirt ppl pass ball to black shirts….and therefore we pay more attn to the ppl playing basketball and dont notice the gorilla because our selective attn is not for the gorilla
change blindness
a failure to realize changes in ones environment….ex guy asking for map directions not noticing the guy who initially asked him was switched
short term memory(STM)
storage system that briefly holds limited info in awareness…but it has more capacity to retain than does sensory system…20-30sec
working memory(WM)
active processing that keeps diff type of info available for active use….this is…a more contemporary model of short term memory..this memory will be lost unless rehearsed or retrieved..
memory span
the STM can hold only limited amounts of info…usually 7+_2 items will be retained at at time
chunking
organizing info into meaningful units..for example given a long list of random letters…but organizing them into groups of three that help you remember them much easier
long term memory
the ‘permanent’ storage of info…its a limitless hard-rive,..although some info may be lost over time….
consolidation-how memory formed
from STM to LTM…the connections were formed using medial temporal lobes…the synapitc links made connections of these strong,,,and once they were strong, they werent needed…..HM was proof that if the medial temporal lobe removed…the long term memory was still intact..BUT there was no connection btw STM and LTM so then HM forgot everything immediately.
re-consolidation-how memories formed
neural process in which memory are recalled and then stored again to be used later.
How are memories stored??Maintenance rehearsal
repeating over and over…
How are memories stored??ellaborative rehearsal
encoding info in a more meaningful way so that easily remembered…ex with Mnemonics
memories recalled how?
semantic—what word means, how looks like..visual…acoustic..how sounds
schemas-meaning based memory
concept, models or representations (cognitive structures) that help us perceive organize and use info….stereotypes are a drawback
node-how memories are found
there are units of info within a network of associations helping us find memories