What is the time span?
of short term memory loss? Days,weeks, months or more?Also wat is the clinical term for it and is the entire memory lost or only certain things.
If you are going to bother to answer the question properly just move on.Thank you
- 1 decade agoFavorite Answer
I forgot the question????
- 1 decade ago
There are several types of "Memory loss" Roughly discribed by:
Can the person remember recent events (is there impaired short-term memory)?
Can the person remember events from further in the past (is there impaired long-term memory)?
Is there a loss of memory about events that occurred prior to a specific experience (anterograde amnesia)?
Is there a loss of memory about events that occurred soon after a specific experience (retrograde amnesia)?
Is there only a minimal loss of memory?
Does the person make up stories to cover gaps in memory (confabulation)?
Is the person suffering from low moods that impair concentration?
As for time span, that is more difficult. There are two "memory" areas in the brain. Recent events (short term) are stored in one, past events (long term) are stored in a different area. The Long term / short term referrers the area the loss occurs.Source(s): Medline Plus
- JCLv 71 decade ago
Ok, I'll answer nice since you asked and I hope this helps :)
The precise biological mechanisms of memory are not fully understood, but most scientists believe that memory results from changes in connections or connection strengths between neurons in the brain. One possible mechanism is long-term potentiation (LTP). Roughly stated, LTP refers to a process whereby if two neurons are usually active together, the connection between them will be strengthened; over time, this means that activity in one neuron will tend to produce activity in the other neuron.
Short-term memory refers to memories which last for a few minutes. Unlike sensory memory, which is stored in the exact form it was experienced, short-term memory has received some processing; thus, "A" is stored not as a visual stimulus, but as an abstract concept of the letter "A". Short-term memory is of limited capacity, usually 5-9 items ("7-plus-or-minus-two"). Beyond this capacity, new information can "bump" out other items from short-term memory. This is one form of forgetting. Objects in short-term memory can be of indefinite complexity: thus short-term memory can hold several numbers, or several words, or several complex concepts simultaneously. Thus, while an individual may only be able to remember seven random digits, it may be possible to remember more digits if they are "chunked" into meaningful objects: thus, "1776-2001-1941" represents twelve separate digits -- well beyond most people's capacity -- but only three easily-remembered chunks.
Items can be maintained indefinitely in short-term memory by rehearsal: e.g. by repeating the information over and over again. An example would be a seven-digit phone number, which is maintained in short-term memory by repetition until the number is dialed, and then fades from short-term memory once the conversation starts. Repetition may also increase the probability that items in short-term memory will enter permanent storage in long-term memory.
When these structures are damaged, a condition of anterograde amnesia can result, in which older declarative memories are largely spared, but few if any new declarative memories are acquired.
Alzheimer's disease causes memory impairments from the early stages, probably because of cell death in the basal forebrain, an area that produces the chemical acetylcholine which facilitates plasticity (learning). Recent memories tend to be poorly remembered, while there may be good memory for long-ago events.
- LP's Mommy, RNLv 61 decade ago
Im thinking its days, possibly even hours. I dont know the clinical term sorry.