Learning and Memory 3 Flashcards
Short Term Memory
= A temporary store in which we integrate current sensory experience and long-term memory to achieve current goals
STM capacity and duration
Capacity = limited 5-9 items
Duration = 15-30 seconds
Serial Position effect
Immediate free recall of lists of numbers or words is affected by the position of the items in the studied list
Primacy effect = provides evidence for transfer to long term memory for items that receive more rehearsal
Can be eliminated if rehearsal is prevented by introducing a concurrent task
Recency effect = reflects ability of information still in STM
Can be eliminated by introducing a filled retention interval before recall
Working Memory
Discovered that STM is a multi-component system that supports meaningful encoding and active reasoning and problem-solving
Baddeleys model of working memory
Phonological loop
= mental workspace for manipulating auditory and verbal information
Visuo-spatial sketchpad
= a temporary store for representations of visual and spatial information such as faces,
Objects, written words and cognitive maps
Episodic buffer
=bringing together sensory information in a multi sensory stream
Neural Basis of Baddeleys models
Executive processes = pre-frontal cortex
Phonological loop = left-hemisphere front-temporal love
Visuo-spatial sketchpad = right occipital parietal
Episodic buffer = parietal cortex
Long term memory types
Declarative
non-declarative
Declarative Memory
= knowing what, where, why and how
2 types = episodic and semantic
episodic memory
personally experiences events
where/when memories
semantic memory
memory of facts and knowledge about the world and self
Hippocampus in LTM
consolidation of declarative information
retrieval of episodic memories
non-declarative memory types
Procedural memory
classical conditioning
operant conditioning
non-associative learning
procedural memory
learning and memory of motor and cognitive skills
amnesia
= deficits in memory caused by brain damage, disease, drug abuse, or psychological trauma
retrograde amnesia
= inability to recall information acquired before the brain injury