Chapter 9: Memory Flashcards
Acquisition
The first step of memory encoding; sensory stimuli are acquired by short-term memory
Amnesia
Deficits in learning/memory due to brain damage
Anterograde amnesia
Loss of ability to form new memories
Classical conditioning
Type of associative learning where an unconditioned and conditioned stimulus are paired to elicit a conditioned response
Consolidation
A process by which memory representations become stronger over time
Declarative memory
Knowledge that is consciously known/retrievable (explicit memory)
Dementia
Accelerated loss of memory/learning with age
Encoding
The process by which information is acquired and consolidated
Episodic memory
The memory of one’s life, includes context to events in one’s life; declarative/explicit
Hebbian learning
The theory that learning is due to the strengthening of synaptic connections that results from weak and strong impulses acting on a cell at the same time
Hippocampus
A brain area located in the medial temporal lobe, receives information from surrounding areas and transmits it to subcortical areas
Involved in memory, specifically for spatial location in mammals and episodic memory in humans
Learning
Process of acquiring new information
Long-term memory
Memory retained for a long time (hours, days, years)
Long-term potentiation
The process by which synaptic connections strengthen due to stimulation
Neurons from the entorhinal cortex travel via the subiculum along the _______ to synapse with granule cells of the dentate gyrus with excitatory inputs.
perforant pathway
Granule cells have distinctive-looking unmyelinated axons, known as _______.
mossy fibers
The CA3 pyramidal cells are connected to the CA1 pyramidal cells by axon collaterals, known as the _______.
Schaffer collaterals
Memory
Persistence of learning in which information can be retrieved later
Encode, store, retrieve
Nonassociative learning
Does NOT involve the association of 2 stimuli
(Opposite of classical conditioning)
Ex. Habituation, sensitization
Nondeclarative memory
Memory that one is not consciously aware of/cannot consciously access, such as cognitive and motor skills (implicit memory)
Perceptual representation system PRS
Information (objects, words) can be primed based on previous experience and revealed in implicit memory tests (nondeclarative, implicit)
Priming
Learning in which a previous/recent stimulus informs the response to a new stimulus
Procedural memory
Memory including cognitive and motor skills (nondeclarative, implicit)
Relational memory
Relates individual pieces of knowledge in support of episodic memory