Memory 2 Flashcards
Is playing your favourite piano piece by heart declarative or non-declarative?
non-declarative
What did carl Lashley do? What was he looking for?
got mice to solve mazes. Would create lesions on the brain and put them back in the maze to see if they could still solve it. He found that no matter where he damaged the brain, they could solve it. He was looking for the engram
What is the equipotentiality hypothesis?
if the part of the brain involved with memory is damaged, another part of the brain will take over memory function.
In what respect was Lashley correct?
He was right in that he implied that the whole brain is involved with memory which is true but not in the way he believed. The problem with him is that he created lesions on the neo-cortex (the available part of the brain), he didn’t access the limbic system.
What is the engram?
The bunch of nuerons responsible for memory
What do we now know about the engram?
We know that it has all the instructions for the memory but when you recall the memory it goes to different lobes and structures to find the different aspects of the memory.
What are 4 areas of he brain that the engram recruits for memory?
The prefrontal cortex, the amygdala, the hippocampus, the cerebellum
What is the amygdala involved with in respect to memory?
Emotional regulation, lateral amygdala, pairing emotion with memory, involved in memory consolidation, especially for emotionally arousing events.
What does the amygdala do in respect to memory?
Takes the memory and consolidates it (turns it into longterm memory)
What would happen if you were to damage the lateral amygdala?
You won’t pair emotion with the stimulus.
What is the hippocampus responsible for in regards to memory? (Not asking about declarative vs non-declarative)
Episodic memories, recognition memory, consolidation, calls on all parts of the brain to reconstruct a memory.
What would happen if you were to damage the hippocampus?
Affect on declarative memories. Damage would mainly affect episodic memory but this can also effect somantic memory.
What part of the brain does multiple choice trigger?
The hippocampus
What type of question would trigger somantic memories affected in the hippocampus?
Possibly a short answer question
What is the cerebellum involved in with respect to memory?
non-declarative memories, procedural memories, Motor learning, Classical conditioning.
What does the cerebellum do?
It regulates involuntary movements and refines gross motor movement. The cerebellum is involved with procedural memory. Anything involving motor learning.
What are the similar but distinct roles that the cerebellum and amygdala play?
Classical conditioning with motor reflex is the cerebellum, emotional response is the amygdala.
What was interesting about the case of H.M regarding the cerebellum and hippocampie
He experienced extreme seizures and surgens went in and removed both hippocampus and it affected his episodic memory. Even though he couldn’t remember stuff, his cerebellum could still help him learn to do motor things like surfing.
What is the inferior frontal gyrus responsible for? Where is it found?
The prefrontal cortex. Semantic learning
Where is the primary motor cortex? What does it deal with?
It is in the prefrontal cortex. It deals with thinking, reasoning, planning.
What type of memory is the prefrontal cortex involved with?
semantic