Transcript Explicit/Implicit Memory Poster

Explicit/Implicit Memory Poster
Nick Morse
Jon Hoover
Greg Marquart
Explicit Memory
• Explicit describe memory
in “episodic” terms
• Example
– If one were to see a
word like “bike,” one
might likely recall a
specific bike one
possessed, and perhaps
a distinct event related
to it.
Explicit Memory
Episodic
Implicit Memory
• Implicit memory is
knowledge we have no
conscious access to.
• “Semantic”
• Example
– If one were to see the word
“pessimism,” one might
have a good idea of the
term without a specific
recollection of it.
Implicit Memory
Semantic
The Question at Hand
• Do the explicit and implicit memory
systems employ separate areas of the brain
to carry out their functions?
– How can we test this?
– What can we conclude from the results?
Methodology
• Presented the subject twice with a list containing words
representing two separate conditions that might indicate a
dissociation of memory
– Concrete words (200 words)
• bike, desk, chair
– Abstract words (200 words)
• pessimism, freedom, happiness
• The subject was then exposed to the original 400 words a
second time, plus 200 new distractor words,
• After viewing each word, he was asked to label it as
“Remember,” “Know,” or “New”
Results
• Compared overall
brain activity between
“remember” and
“know” responses
• Brain activity for both
was highest at the P4
electrode
• No significant
difference was
evident
Results (cont.)
• Greater brain activity
for the “Remember”
responses in the
concrete condition
than in the “know”
response
Results (cont.)
• Conversely, there was
less brain activity for
the “Remember”
responses in the
abstract condition than
in the “Know”
response.
Conclusion
• Data collected did not support two separate
memory systems – explicit and implicit
• Interesting result…
– Data supported a difference in the way that one
remembers certain terms, in our case abstract
and concrete words
• Concrete words elicited greater “Remember”
responses
• Abstract words elicited greater “Know” responses