Disorders of Memory - 2 Flashcards
How are memories stored in cortex?
-distributed fashion
What is the hippocampal function?
-Integrate all the memory storages
What can cause temporary amnesia?
- Head injuries
- psychological states
- Drugs
What is concussion often associated with?
-Memory loss
What are fugue states?
- Occur with psychological trauma
- Forgets who you are and what you done
What is rohypnol also known as?
- Date rape drugs
- Can cause amnesic effect while under influence
What is Conway and Pleydell Pearce theory of memory?
-Knowledge base
- Lifetime periods – vast swathes of time defined in terms of ongoing situations
- General Events – often repeated but related to each other
- Specific knowledge of events
- Working self
- Concerned with goal attainment frames knowledge in terms of progress or lack of progress towards important goals
What are the 3 types of autobiographical events?
- Specific knowledge
- General events
- Lifetime events
What type of autobiographical memory is more susceptible to loss?
- Specific knowledge
- Can remember where you worked
- But forget specific event in that time period
What is confabulation?
- Inventing an answer that is plausible enough or another person to believe but is not true
- eg what you had for lunch
- form of lying
What happens to memory as you age?
- Declines
- Slower processing speed
- Take longer to recall memories
- Normal decline
- Should not interfere with daily function
- If it does it is pathological
What type of memory declines the most?
-Working memory
How many people are affected by dementia?
-800,000
What are the consequences of dementia?
- Memory loss (semantic memory initially then episodic)
- Speed of processing decreases (above 80 is normal, below 80 is more likely to be pathological closer to 60)
- Language ability (chronic alcohol abuse)
- Understanding
- Emotional ability
Common form of dementia?
- Alzheimers
- 10% individuals develop dementia at some point
