summary of lesson 4: memory & perception given by Prof. Lafosse from the clinical neuropsychology course. It is a summary of the powerpoint slides and additional items noted during the lesson. The slides were in English and my own notes are always in Dutch as much as possible. It is therefore a mix...
INTRODUCTION
Start al van kleins af aan
Video 1: new connections are made => memory
- Past and future
- Solve problems
- Language
Video 2: Comparison animals and humans
- Chimpanzees: short term better than long term memory
- Humans: long term better than short term memory
We have to relay on our experiences -> long term
- Kinderen beter dan volwassenen in geheugentaken
- KT geheugen chimpansee is beter dan van ons
Nodig om te overleven
Leren door trial & error
- Mensen dit kwijt om taal te hebben
Wij kunnen communiceren over ideeën
anatomie
Voor mensen is LT belangrijker
- Van KT opgeslagen in LT
- Om belsissing ten maken in frontale lobe kunnen rekenen op opgeslagen ervaringen in LT
Plannen en gedragingen ook voor in toekomst
TYPES OF AMNESIA
Probleem na hersnbeschadeging
- Probleem met hoe info wordt opgeslagn in tijd en hoe et kan worden onderbroken
Neurological onset: stroke
PTA:
- short period before or after that the patient can’t remember anything
- Korte periode voor & achter na neurlogische onset dat de P niet kunnen
herinnern (niets herinneren)
- Gaat deels zich oplossen
- 3 opties
Anterograde amnesie
Reterograde amnesie
Algemene amnesie
Anterograde amnesia:
- Problemen met remembering new information after the onset
Retrograde amnesia:
- Problemen met remembering information from before the onset
general amnesia:
- patients can also have both before and after
- combi antero & retro amnesia
Nala Melis Pagina 1
, Neuropsychologgy: memory & perception
A FUNCTIONAL c o g n i ti v e FRAMEWORK
hoe functioneert geheugen?
Input van zintuigen naar hersenen
- Wordt hier gefilterd
Central executive (frontal lobes)= dorsolateral prefrontal cortex
- inhibit a lot of irrelevant information
-> perception to relevant information in working
memory storage
Samen in werking met geheugen
o Verbal werk geheugen
o Non verbal geheugen
o Visual spatial werk geheugen
- Van werkgeheugen naar long term memory storage
gestuurd
-> stored memories
Gebruiken voor verdere actieplanning en functionele
output
Om terug te vallen op kennis, skills en LT-gehuegen
- LT geh opgesplitst in veel modules
Modulaire organisatie van LT geh
o Probleme met perceptual memory
o Autobiogrfic
o Linguistic & simestic
o Visual knowledge
o Declaration knowledge
o Habits & motor skills
Example: bilateral brain lesion near the hippocampus (combination retro and antero)
- Ene zijde meer uitgesproken leasie als andere
- Hippocampus: remembering episodic information
Deficit in autobiographical memory and declarative knowledge
o Rest is wel nog OK
o Damage is zeer selectief
- Other components of long term memory are intact
- Clinical representation: He can remember things for some seconds
Intact: Habits and motor skills
He can recognize music and play the piano
He was a musician in the past -> skills and habits that are intact
P houd een dagboek bij voor de bewuste momente nog neer te pennen
o Herinnert zich vaak niet dat hj ervoor ook zich van iets bewust was en dit heeft genoteerd
Habits & motor skills zijn echt wel intact
o Al heb je hier ook wel geheugen voor nodig
o Kna wel nog steeds muziek spelen en herkennen zoals ervoor (is zich er wel niet bewust
van
ALZHEIMER DEMENTIA
Without long term memory it is very difficult to do things
It effects everything he does, he needs help with everything
Kan alles nog maar heft problemen met geheugen
Nala Melis Pagina 2
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