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samenvatting les 4 MEMORY AND PERCEPTION

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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 of the 2 languages because it is an English-language master. Everything is in dots, so no complete paragraphs.

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Neuropsychologgy: memory & perception

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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