lecture 17 Flashcards
whats short term memory?
short lived memory for things that just happened or currently occupy your attention, has limited storage capacity (about 7 items - phone number)
whats long term memory?
memory for things that do not currently occupy your attention, that must be retrieved, which has a large storage capacity
How best to consolidate STM → LTM? (how best to retain)
- You need glucose (brains energy source)
- Study from different angles
- Test yourself
- Slow down after the learning
what are the 2 LTM: explicit memories
- Semantic: facts that can be stated, things that you know
- Episodic: memory for events that you have experienced, things that you remember
what are the 3 LTM: implicit memories
- Procedural memory: procedures, motor skills, habits
- Tie your shoes - Priming: when exposure to a stimulus influences behavior (but you are not consciously aware)
- Conditioned responses
what are the 2 Conditioned responses for implicit LTM
- Operant conditioning
- Classical conditioning
whats operant conditioning
- Reward → increases the likelihood of behavior X
X = clean up room
Positive: if you do X, ill give you candy (I give something you want)
Negative: if you do X, ill stop nagging you (i remove something you dont want) - Punishment → decreases the likelihood of behavior Y
Y = you mess up room
Positive: if you do Y ill nag you (give something you don’t want)
Negative: if you do Y ill stop giving you candy (remove something you desire)
Positive = giving you something
Negative = removing something from you
whats classical conditioning
uses natural, automatic response - “when I do this, you’ll do that”
what does Donald Hebb think
learning/training is an increase in connectivity between neurons as a result of simultaneous activity in those neurons
what happens when there is Human hippocampal damage
memory loss (amnesia)
what are the 2 different types of amnesia
Retrograde amnesia: loss of events prior to injury
Anterograde amnesia: inability to create new memories after the injury
what were the symptoms of H.M after hippocampus damage
Severe anterograde amnesia, mild retrograde amnesia
Anterograde amnesia for long term memory, but good on remembering short term memory
Anterograde amnesia for explicit but not implicit LTM (can still learn mirror drawing)
what is the role of hippocampus?
Not where memories are stored (since only mild retrograde amnesia)
Consolidates STM → LTM
Consolidates explicit, not implicit LTM
