So..What is Memory?
Well the dictionary puts it as follows:
–noun, plural -ries.
| 1. |
the mental capacity or faculty of retaining and reviving facts, events, impressions, etc., or of recalling or recognizing previous experiences. |
| 2. |
this faculty as possessed by a particular individual: to have a good memory. |
| 3. |
the act or fact of retaining and recalling impressions, facts, etc.; remembrance; recollection: to draw from memory. |
| 4. |
the length of time over which recollection extends: a time within the memory of living persons. |
| 5. |
a mental impression retained; a recollection: one’s earliest memories. |
| 6. |
the reputation of a person or thing, esp. after death; fame: a ruler of beloved memory. |
| 7. |
the state or fact of being remembered. |
| 8. |
a person, thing, event, fact, etc., remembered. |
| 9. |
commemorative remembrance; commemoration: a monument in memory of Columbus. |
| 10. |
the ability of certain materials to return to an original shape after deformation. |
| 11. |
Also called computer memory, storage. Computers.
| a. |
the capacity of a computer to store information subject to recall. |
| b. |
the components of the computer in which such information is stored. |
|
| 12. |
Rhetoric. the step in the classical preparation of a speech in which the wording is memorized. |
This is what you would expect. But psychologically memory is explained in far more detail.
Alexander smith quoted:
“Memory is a function of the brain: the ability to retain information. Memory is much studied by cognitive psychology and neuroscience. There are multiple types of classifications for memory based on duration, nature and retrieval of perceived items. The terms “storage” and “memory” may also refer to the parts of a digital computer that retain physical state (data) for some interval of time, possibly even after electrical power to the computer is turned off. Where both terms are in use, “memory” is generally used for the faster forms, and “storage” for the slower forms.
Memory is a man’s real possession…In nothing else is he rich, in nothing else is he poor.”
The final part of his quote I feel is the best part. Memory is indeed personal to us all and it is up to us if we share it or not.
I like to feel that memory is there so we recognise mistakes we made once before. But if you think about it, memory isnt just the storage of information. It also has the ability to provoke intrinsic emotions. If you have ever had a loved one sadly pass, the memory of them swells deep happiness and sadness, perhaps even anger that you never got to say the things you meant to. In this sense to a film maker or director, memory can be used as a weapon of creation. If you produce something that provokes these emotions, then you have made a real connection with the audience. One example of this would be the movie “United 93″, 2006, directed by Paul Greengrass. The film is based on the actual events of 9/11. This is a deep memory to thousands of people, and so will undoubtedly stir emotions within the audiences. This will then lead to word of mouth and so the film gains popularity.
Types of Memory
Flashbulb memory: This type of memory is directly linked with emotions and events. Instead of a memory provoking emotions, the term ‘flashbulb memory’ means emotions or specific events provoke the storage of memory. If I said to you “Where were you when you first heard about 9/11?” you would remember exactly where you were at the exact time.
Sensory memory: This means the storage of memory after approx 200 – 500 milliseconds after first perceiving something. The ability to look at an item, and remember what it looked like with just a second of observation.
Short term memory: STM allows recall for a period of several seconds to a minute without pre-thinking. The capacity for STM is very limited, usually with a maximum capacity to recall just 4 – 5 items.
Long term memory: LTM is our main form of remembering. It has the ability to store unlimited amounts for potentially unlimited time. It is said through repatition we remember certain things in order to store them. For example, if we read 11 numbers and try to repeat them, after a few seconds we have already forgotten them, suggesting the storage of what we just read was in the STM. However, if we keep repeating them, the brain knows to store the information within the LTM. An example of this would be a phone number. It is 11 digits long, so we have to keep going over it to remember it, thus placing it into the LTM. I can still remember the house telephone number from my 1st house, which we moved away from over 12 years ago.
Memory Models
Atkinson-Shiffrin ‘Multistore’ model: This is the idea that Sensory and Short Term memory are directly linked with the storage of information to the Long Term memory.

Atkinson and Shiffrin's "Multistore" memory model
Working memory model: This model was proposed as a more detailed alternative to Atkinson and Shiffrons memory model. The working memory model suggested that the storage of memory was linked with more active components.

Baddeley and Hitch's "Working memory" model