The Science of Human Nature by William Henry Pyle (best ereader under 100 TXT) π
But another importance attaches to the brain. When a sense organ is stimulated and this stimulation passes on to the brain and agitates a cell or group of cells there, we are conscious. Consciousness shifts and changes with every shift and change of the stimulation.
The brain has still another important characteristic. After it has been stimulated through sense organ and nerve, a similar brain activity can be revived later, and this revival is the basis of memory. When the brain is agitated through the medium of a sense organ, we have sensation; when this agitation is revived later, we hav
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- Author: William Henry Pyle
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Suppose I am walking along the street and meet a friend. I see him, speak to him, and pass on. But after I have passed on, I have ideas. I think of seeing my friend the day before. I think of what he said and of what he was doing, of what I said and of what I was doing. Perhaps for many minutes there come ideas from my past experience. These ideas were aroused by the perception of my friend. The perception was momentary, but it started a long train of memory ideas.
I pass on down the street and go by a music store. Within the store, a victrola is playing Jesus, Lover of My Soul. The song starts another train of memory ideas. I think of the past, of my boyhood days and Sunday school, my early home and many scenes of my childhood. For several minutes I am so engrossed with the memory images that I scarcely notice anything along the street. Again, the momentary perception, this time of sounds, served to revive a great number of ideas, or memories, of the past.
These illustrations are typical of our life. Every moment we have perceptions. These perceptions arouse ideas of our past life and experience. One of these ideas evokes another, and so an endless chain of images passes along. The older we become, the richer is our ideational life. While we are children, the perceptions constitute the larger part of our mental life, but as we become older, larger and larger becomes the part played by our memory images or ideas. A child is not content to sit down and reflect, giving himself up to the flow of ideas that come up from his past experience, but a mature person can spend hours in recalling past experience. This means that the older we grow, the more we live in the past, the less we are bound down by the present, and when we are old, instead of perceptions being the main part of mental life, they but give the initial push to our thoughts which go on in an endless chain as long as we live.
The Physiological Basis of Memory. It will be remembered that the basis of perception is the agitation of the brain caused by the stimulation of a sense organ by an external thing or force. If there is no stimulation of a sense organ, there is no sensation, no perception. Now, just as the basis of sensation and perception is brain activity, so it is also the basis of ideas. In sensation, the brain activity is set up from without. In memory, when we have ideas, the brain activity is set up from within and is a fainter revival of the activity originally caused by the stimulation of the sense organ. Our ideas are just as truly conditioned or caused by brain activity as are our sensations.
Memory presents many problems, and psychologists have been trying for many years to solve them. We shall now see what they have discovered and what is the practical significance of the facts.
Relation of Memory to Age and Sex. It is a common notion that memory is best when we are young, but such is not the case. Numerous experiments have shown that all aspects of memory improve with age. Some aspects of memory improve more than others, and they improve at different times and rates; but all aspects do improve. From the beginning of school age to about fourteen years of age the improvement of most aspects of memory is rapid.
If we pronounce a number of digits to a child of six, it can reproduce but few of them, a child of eight or ten can reproduce more, a child of twelve can reproduce still more, and an adult still more. If we read a sentence to children of different ages, we find that the older children can reproduce a longer sentence. If we read a short story to children of different ages, and then require them to reproduce the story in their own words, the older children reproduce more of the story than do the young children.[5]
[5] See age and sex graphs, pp. 184, 188, 189.
Girls excel boys in practically all the aspects of memory.
In rote memory, that is, memory for lists of unrelated words, there is not much difference; but the girls are somewhat better. However, in the ability to remember the ideas of a story, girls excel boys at every age. This superiority of girls over boys is not merely a matter of memory. A girl is superior to a boy of the same age in nearly every way. This is merely a fact of development. A girl develops faster than a boy, she reaches maturity more quickly, in mind as well as in body. Although a girl is lighter than a boy at birth, on the average she gains in weight faster and is heavier at twelve than a boy of the same age. She also gains faster in height, and for a few years in early adolescence is taller than a boy of the same age. Of course, boys catch up and finally become much taller and heavier than girls. Similarly, a girlβs mind develops faster than the mind of a boy, as shown in memory and other mental functions.
The Improvement of Memory by Practice. All aspects of memory can be improved by practice, some aspects much, other aspects little. The memory span for digits, or letters, or words, or for objects cannot be much improved, but memory for ideas that are related, as the ideas of a story, can be considerably improved. In extensive experiments conducted in the authorβs laboratory, it was found that a person who at first required an hour to memorize the ideas in a certain amount of material, could, after a few monthsβ practice, memorize the same amount in fifteen minutes. And in the latter case the ideas would be better remembered than they were at the beginning of the experiment. Not only could a given number of ideas be learned in less time, but they would be better retained when learned in the shorter time. If a person comes to us for advice as to how to improve his memory, what should we tell him? In order to answer the question, we must consider the factors of a good memory.
Factors of a Good Memory. (1) The first requirement is to get a good impression in the beginning. Memory is revived experience. The more vivid and intense the first experience, the more sure will be the later recall. So if we wish to remember an experience, we must experience it in the first place under the most favorable conditions. The thing must be seen clearly, it must be understood, it must be in the focus of consciousness.
The best teaching is that which leads the child to get the clearest apprehension of what is taught. If we are teaching about some concrete thing, a plant, a machine, we should be sure that the child sees the essential points, should be sure that the main principles enter his consciousness. We should find out by questioning whether he really does clearly understand what we are trying to get him to understand. Often we think a pupil or student has forgotten, when the fact is that he never really knew the thing which we wished to have him remember.
The first requisite to memory, then, is to know in the first place. If we wish to remember knowledge, the knowledge must be seen in the clearest light, really be knowledge, at the outset. Few people ever really learn how to learn. They never see anything clearly, they never stick to a point till it is apprehended in all its relations and bearings; consequently they forget, largely because they never really knew in the fullest sense.
Most teaching is too abstract. The teacher uses words that have no meaning to the pupil. Too much teaching deals with things indirectly. We study about things instead of studying things. In geography, for example, we study about the earth, getting our information from a book. We read about land formations, river courses, erosion, etc., when instead we should study these objects and processes themselves. The first thing in memory, then, is clear apprehension, clear understanding, vivid and intense impression.
(2) The second thing necessary to memory is to repeat the experience. First we must get a clear impression, then we must repeat the experience if we would retain it. It is a mistake to believe that if we have once understood a thing, we will always thereafter remember it. We must think our experiences over again if we wish to fix them for permanent retention.
We must organize our experience. To organize experience means to think it over in its helpful relations. In memory, one idea arouses another. When we have one idea, what other idea will this arouse? It depends on what connections this idea has had in our minds in the past. It depends on the associations that it has, and associations depend on our thinking the ideas over together.
Teachers and parents should help children to think over their experiences in helpful, practical relations. Then in the future, when an idea comes to mind, it brings along with it other ideas that have these helpful, practical relations. We must not, then, merely repeat our experiences, but must repeat them in helpful connections or associations. In organizing our experience, we must systematize and classify our knowledge.
One of the chief differences in men is in the way they organize their knowledge. Most of us have experiences abundant enough, but we differ in the way we work over and organize these experiences. Organization not only enables us to remember our experience, but brings our experience back in the right connections.
The advice that should be given to a student is the following: Make sure that you understand. If the matter is a lesson in a book, go through it trying to get the main facts; then go through it again, trying to see the relation of all the facts. Then try to see the facts in relation to your wider experience. If it is a history lesson, think of the facts of the lesson in their relation to previous chapters. Think of the details in their bearing on wider and larger movements.
A teacher should always hold in mind the facts in regard to memory, and should make her teaching conform to them. She should carefully plan the presentation of a new topic so as to insure a clear initial impression. A new topic should be presented orally by the teacher, with abundant illustration and explanation. It cannot be made too concrete, it cannot be made too plain and simple.
Then after the teacher has introduced and made plain the new topic, the pupil reads and studies further. At the next recitation of the class, the first thing in order should be a discussion,
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