Cognition Flashcards
cognition
the study of mental processes such as reasoning, information processing, memory, and language
memory
what you use to record, save, and recover info
which brain scan is good for looking at memory?
fMRI
recognition vs. recall
harder to draw a penny from memory (recall) than choosing from diff pics it could be (recognition)-multiple choice easier than short answer
Where are memories stored?
we don’t know for sure-complicated memories are stored in diff places-memory broken up into pieces and stored in diff areas based on what sense they are-occipital lobe, somatosensory cortex, etc.
Where are memories processed?
hippocampus (process everyday memories), amygdala (emotional memories), cerebellum
(balance and coordination-muscle memory processed here-learn dance, how to play a sport), neural networks (in reticular formation-a whole series of neurons connected-when you practice something, the more you study/commit something to memory/repeat the activity, the more the neurons connect, know it better)
What are the important neurotransmitters in processing memories?
serotonin, acetylcholine (AcH-low levels in ppl w Alzheimer’s)
Models of Memory
theories to explain memory-1. Information Processing Model, 2. Atkinson-Shiffrin Model, 3. Levels of Processing/Dept of Processing Model
models of memory-information processing model
proposed in 1960s-based on the idea of the computer….memory= like a comp…3 steps
Step 1: encode, put memories in–>Step 2: put in file cabinet in head/storage–>Step 3: retrieval/use info on test, remember it
models of memory-atkinson-shiffrin model
proposed after the info processing model, in 1960s, then modified in 90s-3 parts to memory: sensory memory, working/short term memory, long term memory
atkinson-shiffrin model of memory: sensory memory
- everything that happens, all senses process-sight and hearing get the most info
- some pieces of info pass on, most discarded after a few seconds cuz not important
- iconic memory: vision
- echoic memory: hearing
atkinson-shiffrin model of memory: working/short term memory (WM or STM)
- what are you working on now? in your brain, what’s there
- list random things at someone, make them list them back at you
- Miller said short term memory can hold 7 plus/minus 2 items (items can each be a group of things or just a thing), but unless you keep working on it, will disappear after a few minutes
atkinson-shiffrin model of memory: long term memory (LTM)
- Ebbinghaus-good German who measured things-interested in memory-tested how long it took him and others to forget nonsense phrases
- his biggest contribution: long term memory seems to have an unlimited capacity-goes on for long period of time, some people can remember what they did 40 years ago
- 2 parts: declarative (explicit) and procedural (implicit)
models of memory-Levels of Processing/Dept of Processing Model
- focuses on encoding-how good your memory retrieval is is based on how good your encoding of it is/how much effort you put into the encoding
- 2 parts: shallow processing (don’t put a lot of effort in, things don’t stay in your head for very long) and deep processing (make more connections, make into song, study harder-put more effort in-remember better and longer)
iconic memory
vision (memory)
echoic memory
hearing (memory)
declarative (explicit) memory
- processed in hippocampus, things you know that you could state, “I know ___”, likely consciously put into memory
- 2 parts: semantic memory (general facts) and episodic memory (own personal memories)
procedural (implicit) memory
“I know how to…” (ride bike, dance), muscle memory-better to let body take over, automatic after learn it, don’t do step by step thinking about each one
encoding info
- ways we process info so that we can remember it-for both working memory and long-term memory, visual, auditory, or semantic info is saved
- how we encode info determines how well we will be able to recall it (encoding specificity)
LTM seems to mostly store info…
semantically (by words) but also stores info visually
encoding specificity
when the retrieval cue is very specific to the encoding
important strategies for encoding info
rehearsal, chunking, context, mnemonics, distributed learning, positive transfer
important strategies for encoding info-rehearsal
- repeating info over and over again
- sometimes keeps info in STM only long enough to be briefly useful, but sometimes works to transfer info into LTM
- 2 types: maintenance rehearsal (simple repetition) and elaborative rehearsal (adding some organization to the info so it can be efficiently stored and then retrieved from LTM)
maintenance rehearsal
simple repetition