Hoofdstuk 11 Flashcards
Baddeley + Hitch
1) phonological loop
2) visuo-spatial Sketchpad
3) central executive
- episodic buffer
Miller
Humans have a span of between 5-9 items (meaningful chunks of information)
- capacity limitation is an intrinsic property of shortterm stores
* visual regions are functionally connected to frontal and parietal regions during the STM Delay Period
(long-term) Declarative Memory:
1) explicit, consciously accessible
Non-Declarative Memory:
2) implicit, not consciously accesible
Procedural Memory
for skills like riding a bike
- not consciously accesssible (for verbal report)
- basal ganglia important
Semantic Memory
conceptually based knowledge about the world, incl. of people, places, meaning of objects and words
Episodic Memory
specific events in one’s own life
Anterograde memory Impairment
problem learning new info
Retrograde Memory Impairment
remembering info prior to brain damage
Semantic memory is
less vulnerable than episodic memory, because semantic memorie scan be learned through repetition and multiple events
Amnesic Patients
- impaired episodic memory (retrograde/anterograde)
- spared shortterm memory, procedural memory and perceptual priming (implicit memory)
Consolidation
the process by which moment-to-moment changes in brain activity are translated into permanent structural changes in the brain
2 types of consolidation
1) Fast synaptic consolidation = may occur anywhere in the nervous system and baseed on LTP
2) Slower System Consolidation = may be related particularly to the hippocampus and declarative memory
Consolidation Theory
LTP (Long-Temr Potentiation) = an increase in the long-term responsiveness of a postsynaptic neuron in response to stimulation of a presynaptic neuron
Ribot’s Law
Early memories preserved in amnesia (less dependent on hippocampus)
Catastrophic Interference
adding new memory to neocortex straight away, distorts old memories