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    Memory Essay Paper (1385 words)

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    A person’s capacity to remember and the total store of mentally retained impressions and knowledge also formulate memory. (Webster, 1992) We all possess inside our heads a system for declassifying, storing, and retrieving information that exceeds the best computer capacity, flexibility, and speed. Yet the same system is so limited and unreliable that it cannot consistently remember a nine-digit phone number long enough to dial it (Baddeley, 1993). The examination of human behavior reveals that current activities are inescapably linked by memories.

    General competent (1993) behavior requires that certain past events have an effect on the influences in the present. For example, touching a hot stove would cause a burn, and therefore, memory would convey a message to not repeat it again. All of this is effected by the development of short-term memory (STM) and long-term memory (LTM). Memories can be positive, like memories of girlfriends and special events, or they can be negative, such as suppressed memories. Sexual abuse of children and adolescents is known to cause severe psychological and emotional damage.

    Adults who were sexually abused in childhood are at a higher risk of developing a variety of psychiatric disorders, anxiety disorders, personality disorders, and mood disorders. To understand the essential issues about traumatic memory, the human mind’s response to a traumatic event must first be understood. The memory is made up of many different sections, each having different consequences on one another. Can people remember what they were wearing three days ago? Most likely not because the memory only holds onto what is actively remembered. What a person was wearing is not important, so it is thrown out and forgotten.

    This type of unimportant information passes through short-term memory. Short-term memory is a system for storing information over brief intervals of time. (Squire, 1987) Its main characteristic is holding and understanding limited amounts of information. The system can grasp brief ideas that would otherwise slip into oblivion, hold them, relate them, and understand them for its purposes.

    Another aspect of STM was introduced by William James in 1890, under the name primary memory (Baddeley, 1993). Primary memory refers to the information that forms the focus of current attention and that occupies the stream of thought. This information does not need to be brought back to mind to be used (1993). Compared to short-term memory, primary memory places less emphasis on time and more emphasis on the parts of attention, processing, and holding.

    No matter what it is called, this system is used when someone hears a telephone number and remembers it long enough to write it down (Squire, 1987). Luckily, a telephone number only consists of seven digits, or else no one would be able to remember them. Most people can remember six or seven digits, while others only remember four or five, and some remember up to nine or ten. This is measured by a technique called the digit span, developed by a London school teacher, J. Jacobs, in 1887.

    Jacobs took subjects (people), presented them with a sequence of digits, and required them to repeat the numbers back in the same order. The length of the sequence is steadily increased until a point is reached at which the subject always fails. The part at which a person is right half the time is defined as their digit span. A way to improve a digit span is through rhythm, which helps to reduce the tendency to recall the numbers in the wrong order.

    Also, to make sure a telephone number is copied correctly, numbers can be grouped in twos and threes instead of given all at once (Baddeley, 1993). Another part of short-term memory is called chunking, used for the immediate recall of letters rather than numbers. When told to remember and repeat the letters q s v l e r c i i u k, only a person with an excellent immediate memory would be able to do so. But if the same letters were given this way: q u i c k s i lv e r, the results would be different. What is the difference between the two sequences? The first were 11 unrelated letters, and the second were chunked into two words, which makes this task easier.

    (1993) Short-term memory recall is slightly better for random numbers than for random letters, which sometimes have similar sounds. It is better for information heard rather than seen. Still, the basic principles hold true: At any given moment, we can process only a very limited amount of information.” (Myers, 1995)

    The next part in the memory process involves the encoding and merging of information from short-term into long-term memory. Long-term memory is understood as having three separate stages: transfer, storage, and retrieval. Once information has entered LTM, with a size that appears to be essentially unlimited, it is maintained by repetition or organization.

    A major part of the transfer process concerns how learned information is coded into memory. Long-term and short-term memory are thought to have different organizations. Where the STM is seen as being organized by time, LTM is organized by meaning and association, then put into categories. For example, our memory takes in Coke and Pepsi as drinks, then organizes and puts them into categories such as soda. An important role in the transferring of information into long-term memory is rehearsal. The critical aspect is the type of rehearsal or processing that takes place during the input time.

    Simple repetition, which serves only to maintain the immediate availability of an item, does little if anything to enhance subsequent recall. Active processes such as elaboration, transformation, and recoding are activities that have been found to enhance recall.” (Asken, 1987) Information that is stored in LTM is stored in the same form as it was originally encoded. The major forms of storage are episodic memory and semantic memory. Episodic memory involves remembering particular incidents, such as visiting the doctor a week ago. Semantic memory concerns knowledge about the world, holding meanings of words or any general information learned. Knowledge of the capitals of all the states would be stored in semantic memory. Canadian psychologist Endel Tulving discovered that there was more activity in the front of the brain when episodic memories were being retrieved, compared to more activity towards the back of the brain with semantic memory. Retrieval, the third process related to LTM, is the finding and retrieving of information from long-term storage. The cues necessary to retrieve information from memory are the same cues that were used to encode the material.

    For some, positive memories are recalled through music. Certain songs remind people of special times spent with friends. Couples sometimes have songs that remind them of their time spent together. Everyone has some way of remembering good times from the past. Along with positive memories come the negative ones, which are suppressed deep in our minds. Another word for negative is traumatic, an experience beyond the range of usual human experience, (Sidran Foundation, 1994) and is brought about with intense fear, terror, and helplessness. Examples include a serious threat to one’s life (or that of one’s children, spouse, etc.), rape, military combat, natural or accidental disasters, and torture. So how does trauma affect memory?

    People use their natural ability to avoid concern of a traumatic experience while the trauma is happening. This causes the memories about the traumatic events to emerge later. People with Post Traumatic Stress Disorder (PTSD) who have survived horrific events experience extreme recall of the event. Some people say they are haunted by memories of traumatic experiences that disrupt their daily lives. They cannot get the pictures of the trauma out of their head. This brings recurring nightmares, flashbacks, or even reliving the trauma as if it were happening now. Vietnam veterans experience this symptom because of what they saw and lived through.

    Some researchers have proven in the laboratory that ordinary or slightly stressful memories are easily distorted. However, this laboratory research on ordinary memory may be irrelevant in regard to memories of traumatic experiences. Other scientists argue that traumatic memories are different from ordinary memories in the way they are encoded in the brain.

    Evidence shows that trauma is stored in the part of the brain called the limbic system, which processes feelings and sensory input, but not language or speech (1994). People who have been traumatized may live with memories of terror, though with little or no real memories to explain the feelings. Sometimes, a current event may trigger long-forgotten memories of earlier trauma. The triggers may be any sound or smell, like a particular cologne that was worn by an attacker. Whether remembered or not, the memories are stored in the brain, and today, with hypnosis, recall can bring forth what has been deeply suppressed.

    The question is, does one really want to know what is not remembered? Along with memories that are recovered, come the effects that follow. Short-term memory holds every experience encountered, while long-term memory retains only what is important. Memory is stored through episodic and semantic memory. The retrieval of decoded information occurs the same way it was encoded.

    Memory is affected by positive and negative emotions, some remembered, others suppressed. Not only is memory used to dwell in the past, but it also helps formulate the present and the future.

    This essay was written by a fellow student. You may use it as a guide or sample for writing your own paper, but remember to cite it correctly. Don’t submit it as your own as it will be considered plagiarism.

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