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cognitive psychology
Reconstructive memory- Bartlett
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Reconstuctive
memory
A theory of
LTM
developed by
Bartlett
To register
new
info and make a
memory
, we must first search through
previously
stored
info.
Schemas
Mental
frameworks
that help us to
organise
info
Develop through
previous
experiences we have had
Organise
categories
of info and the relationships between them.
What did Bartlett propose?
Memories are never exact
copies
of what we first
encoded.
Effort
after meaning
Once the individual makes
sense
of the new
information
and links it to an existing
schema
or creates a new one, it gains
meaning
and can be
stored.
Rationalisation
Each time we
recall
the
stored
memory, we must
reconstruct
it
We may employ
rationalisation
which means that we may
change
the memory for it to make
sense.
Confabulation
Making
up bits of info to fill in the
gaps
May come from
stereotypes
that we hold
War of the
Ghosts
Bartlett found that the story became
shortened
because of omissions made (bits missing)
Phrases used reflected
modern
concepts
After 6 recall sessions it was
reduced
from 330 words to 180
Objects
in the story were made more
familiar
through
rationalisation
e.g. canoe changed to
boats
, hunting seals changed to
fishing.
Strengths- SE- Loftus
Found that
speed
estimates of the same
video
clip
of
car
accidents were
different
depending on the
verb
used in a question
Shows how
reconstructive
memory is often influenced by
schemas
we may have e.g. 'smashed' relates to high speed and broken glass.
Strengths
SE-
War of Ghosts
- found that when participants were asked to
reproduce
an unfamiliar story, each
recall
was
different.
UA- Introduction of the
Devlin Report
- states that we shouldn't
convict
someone where the only evidence is a single
eyewitness
account.
Weaknesses
Credibility-
No
scientific
details about how memory is
reconstructed
in the brain, whereas other theories for e.g. episodic and semantic memory.
Reductionist-
isolates
schemas
and
ignores
other concepts e.g. rehearsal.
Credibility-
only tested 'War of Ghosts' on Cambridge uni students not
representative
of other
cultures.