Tanzania Institute of Education(1999) Memory is the complex mental
function of recalling what has been learned or experienced, it is the retention
of information overtime and memories exist in the brain
Memory
is the ability to remember past experiences or learned information, involving
advanced mental processes such as learning, retention, recall, and recognition
and resulting from chemical changes between neurons in several different areas
of the brain, including the hippocampus. Immediate memory lasts for just a few
seconds. Short-term memory stores information that has been minimally processed
and is available only for a few minutes, as in remembering a phone number just
long enough to use it. Short-term memory is transferred into long-term memory,
which can last for many years, only when repeated use of the information
facilitates neurochemical changes that allow it to be retained. The loss of
memory because of disease or injury is called amnesia. The American Heritage®
Science Dictionary Copyright © 2005 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
In psychology, memory is
the process in which information is encoded, stored, and retrieved. Encoding
allows information that is from the outside world to reach our senses in the
forms of chemical and physical stimuli. In this first stage we must change the
information so that we may put the memory into the encoding process. Storage is
the second memory stage or process. This entails that we maintain information
over periods of time.
Finally the third process is
the retrieval of information that we have stored. We must locate it and return
it to our consciousness. Some retrieval attempts may be effortless due to the
type of information.
From an information
processing perspective there are three main stages
in the formation and retrieval of memory:
·
Retrieval, recall or recollection: calling back the stored
information in response to some cue for use in a process or activity
THE RELATIONSHIP BETWEEN LEARNING AND MEMORY
While memory cannot occur without learning, once information has been learned, our memory may allow the learning to decay. Occasionally, memory will unintentionally play a bit loose with the truth regarding what was previously learned.
While memory cannot occur without learning, once information has been learned, our memory may allow the learning to decay. Occasionally, memory will unintentionally play a bit loose with the truth regarding what was previously learned.
is one who cannot learn and will not remember
content information well during assessment. Emotions can be a catalyst or an
impediment to learning. It has been estimated that 95% of our reactions are
unconsciously driven by the amygdala and only modestly impacted by the
executive centers of the cerebral cortex. Although ours is generally considered
a rational brain, it is an emotional brain, where feelings receive first
priority. A student who is upset
In school, mere exposure to content
information (lecture, text, etc.) is no guarantee that it will reach the
personal/emotional threshold of “personal importance” to the learner, where
encoding the information for permanent memory storage is deemed warranted. What
students encode depends on what they are paying attention to at the time.
Although we often wonder why our students forget important lesson content, the
bigger problem is, Was it ever encode for memory?
An important distinction
has to be made between listening and remembering. Teachers often feel obligated
to clarify what indeed is important, at least for testing purposes, because
students cannot “essentialize” (a term coined by Dr. Robert Grant), separating
the crucial from the tangential.
Several connected brain
regions play key roles in memory formation, including the thalamus, amygdala,
hippocampus and cerebral cortex. It is the interaction of nearly all parts of
the brain that allows for the construction of our memories.
The amygdala and the hippocampus are vital to learning in the classroom:
The amygdala and the hippocampus are vital to learning in the classroom:
1. The stronger the
emotions connected to an experience, the stronger the subsequent memory.
2. The neural networks most important emotionally to a student are bathed with neuro-nutrients, enhancing memory formation and retention.
3. Learning experiences become more memorable when social-emotional memories are part of the learning event, which is why cooperative learning is such a powerful memory-enhancer in schools.
2. The neural networks most important emotionally to a student are bathed with neuro-nutrients, enhancing memory formation and retention.
3. Learning experiences become more memorable when social-emotional memories are part of the learning event, which is why cooperative learning is such a powerful memory-enhancer in schools.
The hippocampus plays a
crucial role in forming and storing our memories of facts and events.
Initially, short-term memories are briefly stored in the hippocampus, prior to
being transferred to other brain regions where they are consolidated with prior
knowledge into long-term memories. While persistent stress can damage hippocampal
brain cells, patterns, emotions, relevance, context, content and sense-making
boost attention, memory formation and recall. Collectively, they can determine
what information reaches permanent memory storage. As Stanford Ericksen
summarized the requisite emotional element in learning, “Students learn what
they care about and remember what they understand.”
When information is
determined to have potential long-term value, the hippocampus links the
significant elements of that event or experience together, forming a permanent
memory. Creating, storing, retrieving and using our spatial memories and
episodic memories are characteristic brain capacities made possible by the
hippocampus. When we daydream, the hippocampus is strikingly active.
Brain-imaging studies have shown heightened activations in the hippocampus not
only when we are recalling memories but also when we put the mind on “wander
and wonder.” This has important implications concerning creativity and
innovation, which are based on our ability to manipulate and expand on stored
factual information.
Upon hearing a new
girlfriend’s birthday, that information enters her companion’s short-term
memory. As the relationship progresses, this short-term memory is converted
into permanent memory through the process of consolidation. Emotional memories
are among our strongest and easiest to recall—an A on a final exam, our high
school and college graduation ceremonies, our senior prom date, etc. As a
result, neurodegenerative diseases including Alzheimer’s are extremely
terrifying, since the disease causes us to forget critical information
identifying who we are, who we love and who loves us most—our emotional
connections.
When a noteworthy personal
date is shared with a loved one—e.g., an anniversary—that random day is tagged
in the vast chronological time scale and is emotionally coded, making it a
prime candidate for permanent memory storage. Those dates of significance
require regular attention, mental rehearsals and reinforcement to maintain our
ability to recall them effortlessly. Classical conditioning would suggest that
a secondary motivation exists—punishment associated with any tendency to forget
those dates—which increases the probability that they will enjoy flawless
recollection.
Information that cannot be
successfully stored by the hippocampus cannot be remembered or subsequently
retrieved. Due to the manner by which elements that compose a memory get
distributed throughout the cortex, long-term memories are generally stored
safely. Damage to the hippocampus renders the formation of new memories
virtually impossible.
Emotional experiences (both
positive and negative) enjoy the highest probability of reaching permanent
memory storage. It is the amygdala-hippocampus connection that fosters the development
of our most memorable moments in life. In the classroom, emotions determine
what students pay attention to, which impacts what students will later
remember.
MEMORY STRATEGIES
The complex human brain has an extensive repertoire of different types of memory strategies that are deployable for varying lengths of time on special occasions with distinctly different purposes and outcomes driven by multiple memory systems. (See “Types of Memory.”)
The complex human brain has an extensive repertoire of different types of memory strategies that are deployable for varying lengths of time on special occasions with distinctly different purposes and outcomes driven by multiple memory systems. (See “Types of Memory.”)
If new connections are not
strengthened by active usage, they soon disintegrate. The more frequently a
given network of neurons fires together, the greater is the likelihood that
they will hardwire together permanently, increasing the likelihood that they
will fire in unison in the future, according to Donald Hebb, the father of
cognitive neuroscience. But it can take as many as six exposures before new
information enters into permanent memory.
- See
more at:
http://brainworldmagazine.com/learning-memory-how-do-we-remember-and-why-do-we-often-forget/#sthash.Njt28kQU.dpuf
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