Memory Function Flashcards
How did HM change how memory in the brain was thought of?
- Memory was thought to be distributed throughout the cortex. No region representing memory.
- HM gave evidence that the temporal lobe might represent a modual for memory
What structures were removed for patient HM?
- Amygdala
- Most of hippocampi
- Part of parahippocampal gyrus
What structures were removed for patient HM?
- Amygdala
- Most of hippocampi
- Part of parahippocampal gyrus
What is retrograde amnesia?
Impairment of memories prior to injury
This gradually improved with HM
Anterograde amnesia.
- Impairment of memories after injury
- Impairment in learning novel (new) information
HM had severe [ … ] amnesia?
Anterograde.
What is the difference between declarative and procedural memory?
Declarative : facts, event
Procedural : skills and task
How can declarative memory be described.
As episotic: events ect
Or semantic: facts, concepts
Why was HM not able to learn new tasks?
This is untrue. HM’s procedural memory function remained in tact.
Could learn new skills but could not remember learning them
The Dentate gyrus + Hippocampus (CA1 to CA3) + Subiculum, are all part of what?
The hippocampal formation
What is Hippocampal formation necessary for?
Relational memory
Names with objects
What kind of lesions result in declarative memory impairment ?
Lesions to componets of the Papaz circut.
most frequent: hippocampus or anterior thalamic nuclei
When neural activity is reduced what area is Alzhimers disease associated with?
Reduction in activity in the **Papez’s Circuit **
What is the role of the amygdala in memory?
Supports memory for emotionally arousing experiences.
What can lesions in the amygdala result in?
Loss of conditioned or conditioning of fears
Reduction in memory for emotionally laden events
