How do you think about Long-term Memory?
1. Types of
knowledge stored in long term memory
Long
term memory (LTM) is a more permanent, apparently limitless store, containing
all our knowledge of the world and memories of the past. Information can be
difficult to retrieve from long term storage – retrieval cues need to closely
match the way the memory was encoded into LTM.
The
kind of memory involved in these situations is long-term memory, information that is acquired in the course of an
experience and that persists so that it can be retrieved long after the
experience is past. As we will see, some forms of long-term memory can be
consciously retrieved, so that we can use our remembrance of things past to
guide present thought and action. William James (1890) described this kind of
memory as “the knowledge of a former state of mind after it has once dropped
from consciousness.” By contrast, other forms of long-term memory influence our
present thinking and behavior while operating outside awareness. In such
instances, past experience unconsciously affects the present. Progress in
understanding longterm memory has come from behavioral investigations of people
with intact memories as well as of patients with memory deficits. Insights into
the operation of memory also have come from lesion and recording studies in
animals and neuroimaging studies in humans.
The
characteristics of long-term memory are:
1. LTM
stores all the information we process but
are not immediately using. Storage of information is believed to be permanent.
2. Forgetting
is the inability to retrieve or locate information, rather than the loss
of information.
3. Information
enters the LTM from the WM and must be classified, organized, connected
and stored with information already in LTM if you want to retrieve
it easily later. It takes time and effort to move information into the LTM.
4. Prior
knowledge plays an important role in learning.
The more information you know before going in to lecture the easier it is to take notes and understand.
5. To
keep knowledge fresh and accessible, means
you have to have a good processing system in place.
6. You
should be continually updating and revising your mental ‘filing closet’.
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