S2 L4 - Episodic Memory Flashcards
(20 cards)
What is Episodic memory?
Memory of personal experiences that can be explicitly stated, consisting of autobiographical events and their context (who, what, when, where and why)
What is Mental Time travel? how does it relate to episodic memory
(Chronesthesia)
Capacity to mentally reconstruct personal events from the past as well to imagine possible scenarios in the future
can access early memories(long distance past), recent memories, lets us think ab our future/future events, imagined events (things that have never or will never happen), reminiscence bump, flashbulb memories
Some individuals have SAM and HSAM. What are they?
SAM = Superior Autobiographical Memory
HSAM = Highly Superior Autobiographical Memory
What are flashbulb memories?
Emotionally significant or shocking memories
What is the Reminiscence Bump?
Superior memory for events that occurred in adolescence and early adulthood
life experiences that form who you are - you remember - so encode a lot of these memories
period of recency in like 50s when memories become easily accessible and stored bc they’re recent memories
What is childhood amnesia?
We don’t encode or store memories as clearly in childhood or early stages of our life compared to when we are older
Which part of the brain is associated with the size and shape of the caudate nucleus (basal ganglia)?
Habits
Which part of the brain is associated with the Shape and size of the temporal lobe?
Episodic memory
What are 2 ways of measuring memory?
Direct Memory Tests such as
Instructed encoding (told wat to remember) > Explicit Retrieval (told to retrieve what to retrieve)
Indirect Memory Tests such as
Incidental Encoding (Ps think ab info but not told to memorise ) > Implicit Retrieval ( Asked to complete activity seemingly unrelated to memory)
What are tests used with direct memory?
Recall - generate info from memory
(Open ended exam qs, digit recall task)
Free recall - recall as many items as possible
Serial recall - Recall items in order of their presentation
Cued recall - recall items with help of a cue
DV - Proportion of correctly recalled items - difference between correctly verified probes (hits) and wrongly accepted probes (false alarms) - detection performance d prime
Recognition - verify whether information presented (probe) matches memory
(MCQ exam, word recognition tasks)
Examples of indirect memory tests?
Two seemingly unrelated tasks
DV- Proportion of unintentionally but correctly retrieved items
What are ways to improve encoding memory?
Levels/Depth of processing (processing at a shallow (looking at structure) or deep (phonemic processing/categorisation by semantics of that word) level)
^deeper processing at encoding can aid memory
Spacing effect
Serial position effect
What are ways to improve retrieval?
Testing effect
What will impact how encoding and retrieval interact?
Encoding-retrieval interactions
such as
Encoding specificity
Transfer-appropriate processing
What is the Spacing Effect?
Impacts ability to encode info
how much you engage w content
how spaced out your engagement is
Massed practice = single, lengthy study period (cramming in info)
Distributed practice = Multiple, short study periods (more likely to benefit performance as memory is generally better after distributed than after massed practice. the longer the spacing is, the better the memory is)
What is Serial Position Effect?
Episodic memory
How well we encode memory when info is presented to us
The way we position our items (in a list) can have an impact on our memory
list of items given
likely to remember first info provided w and last info presented
Primacy Effect = first thing we learn in a list of words is remembered more strongly
Recency Effect = % of words recalled better at the end of the list
SO
It’s Information encoded first (primacy effect) or last (recency effect) is recalled best
What does the Testing Effect impact? And what is it?
Retrieval
Roediger and Karpicke’s (2006) experiments
Ps studied 1 of 2 texts. Then ps had to re-study(reread) or recall the text.
Then ps had to recall after 5 mins after initial studying, 2 days or 2 weeks
Found
ps who were tested had better memory than ps who just restudied
SO
Retrieval practice improves memory for delays longer than a few minutes
What is the Encoding specificity principle?
Matching context at encoding and retrieval aids episodic memory
learning info and retrieving info in the same context (env) can aid episodic memory
Shown by Godden and Baddeley’s diver study
encoding info, retrieving under water/ surface of the water
mix and matching
found when context matches, better at retrieving info
What is transfer-appropriate processing?
Matching processing at encoding and retrieval aids episodic memory - how we think ab info
Matching the type of processing we are applying
People had to complete a sentence or think ab it on a phonological level - so different ways of processing and encoding this info.
at retrieval stage, had to either think ab what the concept is or
or think ab whether it rhymes
so matching between depth and semantic processing w encoding and retrieval
or mis matched bc thinking ab concept and thinking ab whether it rhymes and visa versa
Completion Encoding - the __ had a silver engine - train
Recognition retrieval - Was train one of the studied words?
Phonemic Encoding __ rhymes with legal - eagle
Rhyme retrieval - does regal rhyme with a studied word?
found - memory is best for matched encoding and retrieval processing conditions