Lab Exam 2 Flashcards
What brain damage would affect completion of the Star Maze? Why?
amygdala or cerebellum as this affects the region of the brain that processes implicit memory
Implicit characteristics (4 including one example):
- muscle/emotional
- STM to LTM is slower
- this affects performance
- doesn’t require conscious awareness or active retrieval
- example: riding a bike
Explicit characteristics (4 including one example):
- declarative
- STM to LTM is faster
- facts
- requires conscious awareness and active retrieval
- example: Chara plant or Christmas is on Dec. 25
Describe declarative memories and give an example:
Declarative memories or explicit memory is often characterized by declarative statements (autobiographical and factual).
It requires conscious awareness and processing within the HPC.
Halloween is on October 31.
Describe implicit memories and give an example:
Non-declarative memories or implicit memories is a form of motor learning that does not require conscious awareness.
This type of memory accumulates slowly through repetition and it processed in the amygdala and cerebellum.
Riding a bike or driving.
Star Maze:
What are the labels for this graph?
How does the graph look like?
LABELS:
x– trial
y– error
LOOK:
week one– more errors that has a linear negative slope
week two– less errors parallel to week one
Star Maze:
What do the results tell us?
What type of memory is this?
The first trial would have more errors than the last as our muscle memory was building up.
Week one had higher errors than week two due to the same reason.
Implicit memory.
Rey O Complex:
What are the labels for this graph?
How does the graph look like?
LABELS:
x– time (0/3hr/7d)
y– errors
LOOK:
0– memory had more errors, copiers had none (smaller than the rest)
3h– copiers had more errors than memory
7d– both do worse; copy group does better
Rey O Complex:
Would things be different if a familiar object was used?
Yes. Both groups would improve.
Word List Memory:
What are the labels for this graph?
LABEL:
x– UU/UP/RU/RP
Unrehearsed
Unprimed
Rehearsed
Primed
y– correct
Primacy v Recency:
P– first group remembered
R– last group remembered
Stroop Test:
What is being tested?
Why are children better than adults?
List of colors that are not coherent with the font color. You are reading the color of the font and not the word.
Children are better at this task because they can’t read!
What are some tasks that demonstrated interference?
Stroop test: Reading font color and not word of another color (delay).
FR digit span: More numbers created a greater difficulty.
CB: Spatial test again.
GNG: Reaction time and possibility of error created a delay.
Morris Water Maze:
How could you know what trial is depicted?
Dependent on the latency of the trial.
If they stick to one area they are quite familiar and probably at level 4-7.
If they are taking laps all over, they are probably at the start of the trial 1-3 or 10-12.
Morris Water Maze:
How could you determine if the subject has a memory challenge?
If they never find the platform even after repeated trials.
Morris Water Maze:
What are the labels for this graph?
How does the graph look like?
LABELS:
x– trials (Hidden One 1-6) (Visible 8-9) (Hidden Two 10-13)
y– latency to platform
LOOK:
Hidden One– AG has a better latency than EG.
Visible is flat, little to nothing for both.
Hidden Two– AG has a way higher latency than EG.
Allocentric v Egocentric:
A– reference to an object (posters were the environmental cues)
E– reference to you
What trial was the “Probe Trial”? What was unique about this trial?
This has no visible or hidden platform.
Supposed to test whether or not the subject could locate the platform.
Trisynaptic Circuit:
Senses— HPC (entorhinal cortex) — [perforant pathway] — dentate gyrus — [mossy fibers pathway] — CA3 — [Schaffer collaterals] — CA1
Disinhibition (2):
- due to lack of L&M processes occurring, inhibitory neurons take over
- when L&M is trying to occur, leads to other inhibitory neurons of inhibitory neurons
