Learning and Memory Flashcards
Habituation
process of getting used to stimulus
dishabituation
occurs when a second stimulus intervenes, causing a desensitization to the original stimulus
Associative learning
pairing together response and stimuli or behaviour and consequences
classical conditioning
unconditioned stimulus produces instinctive, unconditioned response. this is paired with neutral stimuli which eventual becomes the conditioned stimulus producing conditioned response.
meat (UC) to dog= salivating (UR)
bell (neutral stimuli) start ringing it before giving dog meat it becomes CS and then salivating in response to the bell becomes CR
Operant Conditioning
behaviour is changed through consequences
Add Stimulus Remove Stimulus Continue Behaviour + R -R Stop Behaviour + P - P
Reinforcement Schedule
Fixed Ratio- rewarding after a set number of right behaviours
Variable Ratio (best one)- rewarding after random number of right behaviours
Fixed Interval- rewarding after set time period ie after every 60s
Variable Interval- rewarding after random time period
Observational Learning
learning a behaviour by watching others (bandora’s bobo doll experiment)
Encoding
process of putting new info into memory.
can be automatic or effortful (like studying for MCAT).
Semantic encoding (meaningful context) is stronger than acoustic and visual
Encoding
process of putting new info into memory.
can be automatic or effortful (like studying for MCAT).
Semantic encoding (meaningful context) is stronger than acoustic and visual
Human Memory
Sensory/short term memory- transient and based on NT activity.
Working memory- requires short term and executive function to manipulate info
Long term memory
ways to memorize
maintenance rehearsal- repeating same info to eventually make it to long term
Mnemonics- acronyms
method of loci- associating items on list with location
peg word- associating words with numbers that rhyme them
chunking- putting things with related meaning together
Long term memory
requires elaborative rehearsal and is a result of increased neuronal activity
has explicit (stores events- episodic and facts- semantic)and implicit (stores skills)
Types of retrieval
recognition: identifying a piece of info that was learned
relearning
retrieval is based on using the semantic network ie- associate red with many different things like roses, fire truck and then fire truck is associated with other vehicles etc
Ways to lose memory
-Alzheimer’s
- Korsakoff’s
- agnosia
- decay
- interference ( retroactive- new info causes us to forget old info) or (proactive- old info interfering with new info)
long term potentiation
strengthening neuronal connections of brain areas that are used the most