Be familiar with the Atkinson and Shiffrin model of memory. How does this impact the design and delivery of instruction?
The Atkinson–Shiffrin model (also known as the multi-store model or modal model) is a model of memory proposed in 1968 by Richard Atkinson and Richard Shiffrin. a short-term store, also called working memory or short-term memory, which receives and holds input from both the sensory register and the long-term store.The multistore model of memory (also known as the modal model) was proposed by Atkinson and Shiffrin (1968) and is a structural model. They proposed that memory consisted of three stores: a sensory register, short-term memory (STM) and long-term memory (LTM).Information passes from store to store in a linear way, and has been described as an information processing model (like a computer) with an input, process and output.Information is detected by the sense organs and enters the sensory memory. If attended to this information enters the short term memory.Information from the short-term memory is transferred to the long-term memory only if that information is rehearsed (i.e. repeated).If maintenance rehearsal does not occur, then information is forgotten, and lost from short term memory through the processes of displacement or decay.
The Modal Model of Memory, also known as the Multi Store Model of Memory, is a theory that was developed by Richard Atkinson and Richard Shiffrin in 1968. The Modal Model of Memory explains how memory processes work. Despite the fact that the idea of various levels of memory storage wasn’t new, the multiple model, consisting of three parts, was first described by the two Richards. William James described a primary and secondary memory in the latter years of the nineteenth century. In his theory, primary memory consisted of thoughts that were stored in consciousness for a brief time and secondary memory consisted of permanent, subconscious storage.
Later, Richard Atkinson and Richard Shiffrin added a third level to this theory: the sensory register of the brain. They also came up with the idea that the brain has various control processes that regulate the transfer of memory.A valuable aspect of the Modal Model of Memory is that it’s supported by scientific evidence, something that’s fairly difficult in theories regarding something as abstract as memory. In an attempt to cure severe epilepsy, part of a patient’s hippocampus was removed. This led to the problem of this person being unable to transfer information from his short-term memory to his long-term memory. In other words, the patient was incapable of creating long-term memories. This person was living proof of the idea that there are multiple levels of memory.
Human memory is the capacity to encode information and experiences in the brain. These codes are subsequently stored and can be retrieved at a later time. This offers human beings the possibility to learn, adapt and build relationships.
In more neurological terms, memory is a series of encoded neural connections in the brain. It is the recreation of past experiences which is brought about by the synchronised firing of neurons that were involved in the original experience. The experiences aren’t stored as books on a bookshelf, like a complete element, but rather consist of separate elements that are scattered across the various brain areas.
The term memory is also used to describe computers’ capacity to store information. Although there are some parallels between the computer memory and human memory, there are also some fundamental and crucial differences. The human brain is organised like a distributed network in which each brain cell has thousands of connections. Computer memory consists of a collection of addressable and discrete files.
After information has entered the brain via all kinds of impulses, it must be stored, maintained or removed. Many psychologists use the three-step model of Richard Atkinson and Richard Shiffrin to describe the storage process. For each memory system, the capacity, type of storage and duration are described.
Sensory Memory
Sensory memory stores information for only a moment. For example, when seeing a quickly circling flashlight in a dark space, people see a circle of light rather than separate dots of light. This is because sensory memory briefly retains these images that quickly follow each other, which means the brain sees a circle via the retina. Visual sensory memory is referred to as iconic memory, and auditory sensory memory is called echoic memory.
Short-term Memory
A small part of the information that enters the brain via the sensory part of the brain is transferred to short-term memory. Here, it can be stored for about 18 seconds with a capacity of 7-8 items. Rehearsal or an intense event can lead to the information being sent to long-term memory, such as repeating a new phone number. The items can be large or small, depending on the individual. Where one item could be a series of ten numbers for one person, another item could be a single letter for someone else. When information has already previously entered the short-term memory, and small pieces of this information have been retained, the brain is capable of responding to these stimuli faster or to remember these more easily. This is referred to as priming.
Long-term Memory
Information from short-term memory can be transferred to long-term memory by means of rehearsal, and back again to short-term memory. Long-term memory has a practical infinite capacity, which showcases the brain’s enormous potential. When the information is stored in long-term memory, it usually remains there for the rest of a person’s life. However, this doesn’t mean that this person is always able to remember the specific information. The right neurons must make the right connections to retrieve the right memories.
Retrieving Stored Information
Retrieving or remembering is the processes in which information
from memory is recalled. Retrieving memories occurs by means of
certain stimuli, also referred to as cues. These cues include
associations, context and mood. These three components greatly
influence people’s ability to retrieve the right
memories.Associations play an important role in this process. It is
possible that deep-rooted memories suddenly resurface upon seeing a
certain photograph, smelling a certain scent or hearing a specific
sound.
People can sometimes retrieve an event by envisioning themselves in
the situation in which this event took place. A frequently asked
question when losing your car key is: ‘what did you do right after
parking the car?’.A person’s mood also directly influences one’s
capability to retrieve memories. When a person’s mood is the same
as it was in the situation concerned, the neurons in the brain make
the right connections more easily.That the information in long-term
memory isn’t permanently lost is confirmed by the fact that people
can remember specific information when they’re under hypnosis.
Hypnosis makes it easier for the brain to provide the right cues
without irrelevant associations getting in the way. The individual
is better able to envision the context and his/her mood is largely
ignored.
To Summarise
The Modal Model of Memory is a structural model that was developed by Richard Atkinson and Richard Shiffrin. It describes three storage systems that are linearly connected and is described as a model for information processing. Information can be detected by the senses and enters sensory memory. This is fully automatic, but when certain information is emphasised, it is transferred to short-term memory.The Modal Model of Memory describes that, in case of sufficient rehearsal, information can be transferred to long-term memory, where it is stored forever. Whether an individual can retrieve this information, however, depends on the associations that are made, or whether the mood is comparable and whether the context in which the events took place shows similarities with the present situation.
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