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How to Use Your Mind
by Harry D. Kitson
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"A second change in fatigue has been found in the cell body of the neurone. Hodge showed that the size of the nucleus of the cell in the spinal cord of a bee diminished nearly 75 per cent, as a result of the day's activity, and that the nucleus became much less solid. A third change that has been demonstrated as a result of muscular work is the accumulation of waste products in the muscle tissue. Fatigued muscles contain considerable percentages of these products. That they are important factors in the fatigue process has been shown by washing them from a fatigued muscle. As a result the muscle gains new capacity for work. The experiments are performed on the muscles of a frog that have been cut from the body and fatigued by electrical stimulation. When they will no longer respond, their sensitivity may be renewed by washing them in dilute alcohol or in a weak salt solution that will dissolve the products of fatigue. It is probable that these products stimulate the sense-organs in the muscles and thus give some of the sensations of fatigue. Of these physical effects of fatigue, the accumulation of waste products in the blood and the effects upon the nerve cells are probably common both to mental and physical fatigue. The effect upon the muscles plays a part in mental fatigue only so far as all mental work involves some muscular activity."

By this time you must be convinced that the subject of fatigue is exceedingly complicated; that its effects are manifested differently in mind and body. In relieving fatigue the first step to be taken is to rest properly. Man cannot work incessantly; he must rest sometimes, and it is just as important to know how to rest efficiently as to know how to work efficiently. By this is not meant that one should rest as soon as fatigue begins to be felt. Quite the reverse. Keep on working all the harder if you wish the second-wind to appear. Perhaps two hours will exhaust your first supply of energy and will leave you greatly fatigued. Do not give up at this time, however. Push yourself farther in order to uncover the second layer of energy. Before entering upon this, however, it will be possible to secure some advantage by resting for about fifteen minutes. Do not rest longer than this, or you may lose the momentum already secured and your two hours will have gone for naught. If one indulges in too long a rest, the energy seems to run down and more effort is required to work it up again than was originally expended. It is also important to observe the proper mental conditions during rest. Do not spend the fifteen minutes in getting interested in some other object; for that will leave distracting ideas in the mind which will persist when you resume work. Make the rest a time of physical and mental relief. Move cramped muscles, rest your eyes and let your thoughts idly wander; then come back to work in ten or fifteen minutes and you will be amazed at the refreshed feeling with which you do your work and at the accession of new energy that will come to you. Keep on at this new plane and your work will take on all the attributes of the second-wind level of efficiency.

Besides planning intelligent rests, you may also adjust yourself to fatigue by arranging your daily program so as to do your hardest work when you are fresh, and your easiest when your efficiency is low. In other words, you are a human dynamo, and should adjust yourself to the different loads you carry. When carrying a heavy load, employ your best energies, but when carrying only a light load, exert a proportionate amount of energy. Every student has tasks of a routine nature which do not require a high degree of energy, such as copying material. Plan to perform such work when your stock of energy is lowest.

One of the best ways to insure the attainment of a higher plane of mental efficiency is to assume an attitude of interestedness. This is an emotional state and we have seen that emotion calls forth great energy.

A final aid in promoting increase of energy is that gained through stimulating ideas. Other things being equal, the student who is animated by a stimulating idea works more diligently and effectively than one without. The idea may be a lofty professional ideal; it may be a desire to please one's family, a sense of duty, or a wish to excel. Whatever it is, an idea may stimulate to extraordinary achievements. Adopt some compelling aim if you have none. A vocational aim often serves as a powerful incentive throughout one's student life. An idea may operate for even more transient purposes; it may make one oblivious to present discomfort to a remarkable degree. This is accomplished through the aid of suggestion. When feelings of fatigue approach, you may ward them off by resolutely suggesting to yourself that you are feeling fresh.

Above all, the will is effective in lifting one to higher levels of efficiency. It is notorious that a single effort of the will, "such as saying 'no' to some habitual temptation or performing some courageous act, will launch a man on a higher level of energy for days and weeks, will give him a new range of power. 'In the act of uncorking the whiskey bottle which I had brought home to get drunk upon,' said a man to me, 'I suddenly found myself running out into the garden, where I smashed it on the ground. I felt so happy and uplifted after this act, that for two months I wasn't tempted to touch a drop.'" But the results of exertions of the will are not usually so immediate, and you may accept it as a fact that in raising yourself to a higher level of energy you cannot do it by a single effort. Continuous effort is required until the higher levels of energy have formed the habit of responding when work is to be done. In laying the burden upon Nature's mechanism of habit, you see you are again face to face with the proposition laid down at the beginning of the book—that education consists in the process of forming habits of mind. The particular habit most important to cultivate in connection with the production of second-wind is the habit of resisting fatigue. Form the habit of persisting in spite of apparent obstacles and limitations. Though they seem almost unsurmountable, they are really only superficial. Buried deep within you are stores of energy that you yourself are unaware of. They will assist you in accomplishing feats far greater than you think yourself capable of. Draw upon these resources and you will find yourself gradually living and working upon a higher plane of efficiency, improving the quality of your work, increasing the quantity of your work and enhancing your enjoyment in work.

READINGS AND EXERCISE

Readings: James (9) Seashore (14) Chapter III. Swift (20) Chapter V.

Exercise I. Describe conditions you have observed at time of second-wind in connection with prolonged (a) physical exertion, (b) intellectual exertion.



CHAPTER XIV

EXAMINATIONS

One of the most vexatious periods of student life is examination time. This is almost universally a time of great distress, giving rise in extreme cases to conditions of nervous collapse. The reason for this is not far to seek, for upon the results of examinations frequently depend momentous consequences, such as valuable appointments, diplomas, degrees and other important events in the life of a student. In view of the importance of examinations, then, it is natural that they be regarded with considerable fear and trepidation, and it is important that we devise what rules we can for meeting their exactious demands with greatest ease and effectiveness.

Examinations serve several purposes, the foremost of which is to inform the examiner regarding the amount of knowledge possessed by the student. In discovering this, two methods may be employed; first, to test whether or not the student knows certain things, plainly a reproductive exercise; second, to see how well the student can apply his knowledge. But this is not the only function of an examination. It also shows the student how much he knows or does not know. Again the examination often serves as an incentive to harder work on the part of the student, for if one knows there will be an examination in a subject, one usually studies with greater zeal than when an examination is not expected. Lastly, an examination may help the student to link up facts in new ways, and to see them in new relationships. In this aspect, you readily see that examinations constitute a valuable device in learning.

But students are not very patient in philosophizing about the purpose of examinations, declaring that if examinations are a necessary part of the educational process, they wish some advice that will enable them to pass examinations easily and with credit to themselves. So we shall turn our attention to the practical problems of passing examinations.

Our first duty in giving advice is to call attention to the necessity for faithful work throughout the course of study. Some students seem to think that they can slight their work throughout a course, and by vigorous cramming at the end make up for slighted work and pass the examination. This is an extremely dangerous attitude to take. It might work with certain kinds of subject-matter, a certain type of student-mind and a certain kind of examiner, but as a general practice it is a most treacherous method of passing a course. The greatest objection from a psychological standpoint is that we have reason to believe that learning thus concentrated is not so permanently effective as that extended over a long period of time. For instance, a German course extending over a year has much to commend it over a course with the same number of recitation-hours crowded into two months. We already discussed the reasons for this in Chapter VI, when we showed the beneficial results coming from the distribution of impressions over a period of time.

Against cramming it may further be urged that the hasty impression of a mass of new material is not likely to be lasting; particularly is this true when the cramming is made specifically for a certain examination. As we saw in the chapter on memory, the intention to remember affects the firmness of retention, and if the cramming is done merely with reference to the examination, the facts learned may be forgotten and never be available for future use. So we may lay it down as a rule that feverish exertions at the end of a course cannot replace conscientious work throughout the course. In spite of these objections, however, we must admit that cramming has some value, if it does not take the form of new acquisition of facts, but consists more of a manipulation of facts already learned. As a method of review, it has an eminently proper place and may well be regarded as indispensable. Some students, it is true, assert that they derive little benefit from a pre-examination review, but one is inclined to question their methods. We have already found that learning is characteristically aided by reviews, and that recall is facilitated by recency of impression. Reviewing just before examination serves the memory by providing repetition and recency, which, as we learned in the chapter on memory, are conditions for favorable impression.

A further value of cramming is that by means of such a summarizing review one is able to see facts in a greater number of relations than before. It too often happens that when facts are taken up in a course they come in a more or less detached form, but at the conclusion of the course a review will show the facts in perspective and will disclose many new relations between them.

Another advantage of cramming is that at such a time, one usually works at a high plane of efficiency; the task of reviewing in a few hours the work of an entire course is so huge that the attention is closely concentrated, impressions are made vividly, and the entire mentality is tuned up so that facts are well impressed, coordinated and retained. These advantages are not all present in the more leisurely learning of a course, so we see that cramming may be regarded as a useful device in learning.

We must not forget that many of the advantages secured by cramming are dependent upon the methods pursued. There are good methods and poor methods of cramming. One of the most reprehensible of the latter is to get into a flurry and scramble madly through a mass of facts without regard to their relation to each other. This method is characterized by breathless haste and an anxious fear lest something be missed or forgotten. Perhaps its most serious evil is its formlessness and lack of plan. In other words the facts should not be seized upon singly but should be regarded in the light of their different relations with each other. Suppose, for example, you are reviewing for an examination in mediaeval history. The important events may be studied according to countries, studying one country at a time, but that is not sufficient; the events occurring during one period in one country should be correlated with those occurring in another country at the same time. Likewise the movements in the field of science and discovery should be correlated with movements in the fields of literature, religion and political control. Tabulate the events in chronological order and compare the different series of events with each other. In this way the facts will be seen in new relations and will be more firmly impressed so that you can use them in answering a great variety of questions.

Having made preparation of the subject-matter of the examination, the next step is to prepare yourself physically for the trying ordeal, for it is well known that the mind acts more ably under physically healthful conditions. Go to the examination-room with your body rested after a good night's sleep. Eat sparingly before the examination, for mental processes are likely to be clogged if too heavy food is taken.

Having reached the examination-room, there are a number of considerations that are requisite for success. Some of the advice here given may seem to be superfluous but if you had ever corrected examination papers you would see the need of it all. Let your first step consist of a preliminary survey of the examination questions; read them all over slowly and thoughtfully in order to discover the extent of the task set before you. A striking thing is accomplished by this preliminary reading of the questions. It seems as though during the examination period the knowledge relating to the different questions assembles itself, and while you are focusing your attention upon the answer to one question, the answers to the other questions are formulating themselves in your mind. It is a semi-conscious operation, akin to the "unconscious learning" discussed in the chapter on memory. In order to take advantage of it, it is necessary to have the questions in mind as soon as possible; then it will be found that relevant associations will form and will come to the surface when you reach the particular questions.

During the examination when some of these associations come into consciousness ahead of time, it is often wise to digress from the question in hand long enough to jot them down. By all means preserve them, for if you do not write them down they may leave you and be lost. Sometimes very brilliant ideas come in flashes, and inasmuch as they are so fleeting, it is wise to grasp them and fix them while they are fresh.

In writing the examination, be sure you read every question carefully. Each question has a definite point; look for it, and do not start answering until you are sure you have found it. Discover the implications of each question; canvass its possible interpretations, and if it is at all ambiguous seek light from the instructor if he is willing to make any further comment.

It is well to have scratch paper handy and make outlines for your answers to long questions. It is a good plan, also, when dealing with long questions, to watch the time carefully, for there is danger that you will spend too much time upon some question to the detriment of others equally important, though shorter.

One error which students often commit in taking examinations is to waste time in dreaming. As they come upon a difficult question they sit back and wait for the answer to come to them. This is the wrong plan. The secret of freedom of ideas lies in activity. Therefore, at such times, keep active, so that the associative processes will operate freely. Stimulate brain activity by the method suggested in Chapter X, namely, by means of muscular activity. Instead of idly waiting for flashes of inspiration, begin to write. You may not be able to write directly upon the point at issue, but you can write something about it, and as you begin to explore and to express your meagre fund of knowledge, one idea will call up another and soon the correct answer will appear.

After you have prepared yourself to the extent of your ability, you should maintain toward the examination an attitude of confidence. Believe firmly that you will pass the examination. Make strong suggestions to yourself, affirming positively that you have the requisite amount of information and the ability to express it coherently and forcefully. Fortified by the consciousness of faithful application throughout the work of a course, reinforced by a thorough, well-planned review, and with a firm conviction in the strength of your own powers, you may approach your examinations with comparative ease and with good chances of passing them creditably.

READINGS AND EXERCISE

Readings:

Adams (1) Chapter X.

Dearborn (2) Chapter II.

Exercise I. Make a schedule of your examinations for the next examination week. Show exactly what preparatory steps you will take (a) before coming to the examination room, (6) after entering it.



CHAPTER XV

BODILY CONDITIONS FOR EFFECTIVE STUDY

It is a truism to say that mental ability is affected by bodily conditions. A common complaint of students is that they cannot study because of a headache, or they fail in class because of loss of sleep. So patent is the interrelation between bodily condition and study that we cannot consider our discussion of study problems complete without recognition of the topic. We shall group our discussions about three of the most important physical activities, eating, sleeping and exercising. These make up the greater part of our daily activities and if they are properly regulated our study is likely to be effective.

FOOD.—It is generally agreed that the main function of food is to repair the tissues of the body. Other effects are present, such as pleasure and sociability, but its chief benefit is reparative, so we may well regard the subject from a strictly utilitarian standpoint and inquire how we may produce the highest efficiency from our eating. Some of the important questions about eating are, how much to eat, what kind of food to eat, when to eat, what are the most favorable conditions for eating?

The quantity of food to be taken varies with the demands of the individual appetite and the individual powers of absorption. In general, one who is engaged in physical labor needs more, because of increased appetite and increased waste of tissues. So a farm-hand needs more food than a college student, whose work is mostly indoors and sedentary. Much has been said recently about the ills of overeating. One of the most enthusiastic defenders of a decreased diet is Mr. Horace Fletcher, who, by the practice of protracted mastication, "contrives to satisfy the appetite while taking an exceptionally small amount of food. Salivary digestion is favored and the mechanical subdivision of the food is carried to an extreme point. Remarkably complete digestion and absorption follow. By faithfully pursuing this system Mr. Fletcher has vastly bettered his general health, and is a rare example of muscular and mental power for a man above sixty years of age. He is a vigorous pedestrian and mountain-climber and holds surprising records for endurance tests in the gymnasium.

"The chief gain observed in his case, as in others which are more or less parallel, is the acquiring of immunity to fatigue, both muscular and central. It is not claimed that the sparing diet confers great strength for momentary efforts—'explosive strength,' as the term goes—but that moderate muscular contractions may be repeated many times with far less discomfort than before. The inference appears to be that the subject who eats more than is best has in his circulation and his tissues by-products which act like the muscular waste which is normally responsible for fatigue. According to this conception he is never really fresh for his task, but is obliged to start with a handicap. When he reduces his diet the cells and fluids of his body free themselves of these by-products and he realizes a capacity quite unguessed in the past.

"The same assumption explains the fact mentioned by Mr. Fletcher, that the hours of sleep can be reduced decidedly when the diet is cut down. It would seem as though a part of our sleep might often be due to avoidable auto-intoxication. If one can shorten his nightly sleep without feeling the worse for it this is an important gain."

But the amount of food is probably not so important as the kind. Foods containing much starch, as potatoes and rice, may ordinarily be taken in greater quantities than foods containing much protein, such as meats and nuts. So our problem is not so much concerned with quantity as with the choice of kinds of food. Probably the most favorable distribution of foods for students is a predominance of fruits, coarse cereals, starch and sugar and less prominence to meats. Do not begin the day's study on a breakfast of cakes. They are a heavy tax upon the digestive powers and their nutritive value is low. The mid-day meal is also a crucial factor in determining the efficiency of afternoon study, and many students almost completely incapacitate themselves for afternoon work by a too-heavy noon meal. Frequently an afternoon course is rendered quite valueless because the student drowses through the lecture soddened by a heavy lunch. One way of overcoming this difficulty is by dispensing with the mid-day meal; another way is to drink a small amount of coffee, which frequently keeps people awake; but these devices are not to be universally recommended.

The heavy meal of a student may well come at evening. It should consist of a varied assortment of foods with some liquids, preferably clear soup, milk and water. Meat also forms a substantial part of this meal, though ordinarily it should not be taken more than once a day. Much is heard nowadays about the dangers of excessive meat-eating and the objections are well-founded in the case of brain-workers. The undesirable effects are "an unprofitable spurring of the metabolism— more particularly objectionable in warm weather—and the menace of auto-intoxication." Too much protein, found in meat, lays a burden upon the liver and kidneys and when the burden is too great, wastes, which cannot be taken care of, gather and poison the blood, giving rise to that feeling of being "tired all over" which is so inimical to mental and physical exertion. When meat is eaten, care should be taken to choose right kinds. "Some kinds of meat are well known to occasion indigestion. Pork and veal are particularly feared. While we may not know the reason why these foods so often disagree with people, it seems probable that texture is an important consideration. In both these meats the fibre is fine, and fat is intimately mingled with the lean. A close blending of fat with nitrogenous matter appears to give a fabric which is hard to digest. The same principle is illustrated by fat-soaked fried foods. Under the cover of the fat, thorough-going bacterial decomposition of the proteins may be accomplished with the final release of highly poisonous products. Attacks of acute indigestion resulting from this cause are much like the so-called ptomaine poisoning."

Much of the benefit of meat may be secured from other foods. Fat, for example, may be obtained from milk and butter freed from the objectionable qualities of the meat-fibre. In this connection it is important to call attention to the use of fried fat. Avoid fat that is mixed with starch particles in such foods as fried potatoes and pie-crust.

The conditions during meals should always be as pleasant as possible. This refers both to physical surroundings and mental condition. "The processes occurring in the alimentary canal are greatly subject to influences radiating from the brain. It is especially striking that both the movements of the stomach and the secretion of the gastric juice may be inhibited as a result of disturbing circumstances. Intestinal movements may be modified in similar fashion."

"Cannon has collected various instances of the suspension of digestion in consequence of disagreeable experiences, and it would be easy for almost anyone to add to his list. He tells us, for example, of the case of a woman whose stomach was emptied under the direction of a specialist in order to ascertain the degree of digestion undergone by a prescribed breakfast. The dinner of the night before was recovered and was found almost unaltered. Inquiry led to the fact that the woman had passed a night of intense agitation as the result of misconduct on the part of her husband. People who are seasick some hours after a meal vomit undigested food. Apprehension of being sick has probably inhibited the gastric activities.

"Just as a single occasion of painful emotion may lead to a passing digestive disturbance, so continued mental depression, worry, or grief may permanently impair the working of the (alimentary) tract and undermine the vigor and capacity of the sufferer. Homesickness is not to be regarded lightly as a cause of malnutrition. Companionship is a powerful promoter of assimilation. The attractive serving of food, a pleasant room, and good ventilation are of high importance. The lack of these, so commonly faced by the lonely student or the young man making a start in a strange city, may be to some extent counteracted by the cultivation of optimism and the mental discipline which makes it possible to detach one's self from sordid surroundings."

Almost as important as eating is drinking, for liquids constitute the "largest item in the income" of the body. Free drinking is recommended by physiologists, the beneficial results being, "the avoidance of constipation, and the promotion of the elimination of dissolved waste by the kidneys and possibly the liver." In regard to the use of water with meals, a point upon which emphatic cautions were formerly offered, recent experiments have failed to show any bad effects from this, and the advice is now given to drink "all the water that one chooses with meals." Caution should be observed, however, about introducing hot and cold liquids into the stomach in quick succession.

Other liquids have been much discussed by dietitians, especially tea and coffee. "These beverages owe what limited food value they have to the cream and sugar usually mixed with them. They give pleasure by their aroma, but they are given a peculiar position among articles of diet by the presence in them of the compound caffein, which is distinctly a drug. It is a stimulant to the heart, the kidneys, and the central nervous system."

"Individual susceptibility to the action of caffein varies greatly. Where one person notices little or no reaction after a cup of coffee, another is exhilarated to a marked degree and hours later may find himself lying sleepless with tense or trembling muscles, a dry, burning skin, and a mind feverishly active. Often it is found that a more protracted disturbance follows the taking of coffee with cream than is caused by black coffee.

"It is too much to claim that the use of tea and coffee is altogether to be condemned. Many people, nevertheless, are better without them. For all who find themselves strongly stimulated it is the part of wisdom to limit the enjoyment of these decoctions to real emergencies when uncommon demands are made upon the endurance and when for a time hygienic considerations have to be ignored. If young people will postpone the formation of the habit they will have one more resource when the pressure of mature life becomes severe."

Before concluding this discussion a word might be added concerning the relation between fasting and mental activity. Prolonged abstinence from food frequently results in highly sharpened intellectual powers. Numerous examples of this are found in the literature of history and biography; many actors, speakers and singers habitually fast before public performances. There are some disadvantages to fasting, especially loss of weight and weakness, but when done under the direction of a physician, fasting has been known to produce very beneficial effects. It is mentioned here because it has such marked effects in speeding up the mental processes and clearing the mind; and the well-nourished student may find the practice a source of mental strength during times of stress such as examinations.

SLEEP.—"About one-third of an average human life is passed in the familiar and yet mysterious state which we call sleep. From one point of view this seems a large inroad upon the period in which our consciousness has its exercise; a subtraction of twenty-five years from the life of one who lives to be seventy-five. Yet we know that the efficiency and comfort of the individual demand the surrender of all this precious time. It has often been said that sleep is a more imperative necessity than food, and the claim seems to be well founded." It is quite likely that some students indulge in too much sleep. This may sometimes be due to laziness, but frequently it is due to actual intoxication, from an excess of food which results in the presence of poisonous "narcotizing substances absorbed from the burdened intestine". This theory is rendered tenable by the fact that when the diet is reduced the hours of sleep may be reduced. If one is in good health, it seems right to expect that one should be able to arise gladly and briskly upon awaking. By all means do not indulge yourself in long periods of lying in bed after a good night's rest. If we examine the physical and physiological conditions of sleep we shall better understand its hygiene. Sleep is a state in which the tissues of the body which have been used up may be restored. Of course some restoration of broken-down tissue takes place as soon as it begins to wear out, but so long as the body keeps working, the one process can never quite compensate for the other, so there must be a periodic cessation of activity so that the energies of the body may be devoted to restoration. Viewing sleep as a time when broken-down bodily cells are restored, we see that we tax the energies of the body less if we go to sleep each day before the cells are entirely depleted. That is the significance of the old teaching that sleep before midnight is more efficacious than sleep after midnight. It is not that there is any mystic virtue in the hours before twelve, but that in the early part of the evening the cells are not so nearly exhausted as they are later in the evening, and it is much easier to repair them in the partially exhausted stage than it is in the completely exhausted stage. For this reason, a mid-day nap is often effective, or a short nap after the evening dinner. By thus catching the cells at an early stage of their exhaustion, they can be restored with comparative ease, and more energy will be available for use during the remainder of the working hours.

A problem that may occasionally trouble a student is sleeplessness and we may properly consider here some of the ways of avoiding it. One prime cause of sleeplessness is external disturbance. The disturbance may be visual. Although it is ordinarily thought that if the eyes are closed, no visual disturbances can be sensed, nevertheless, as a matter of fact the eye-lids are not wholly opaque. Sight may be obtained through them, as you may prove by closing your eyes and moving your fingers before them. The lids transmit light to the retina and it is quite likely that you are frequently awakened by a beam of light falling upon your closed eye-lids. For this reason, one who is inclined to be wakeful should shut out from the bed-room all avenues whereby light may enter as a distraction.

The temperature sense is also a source of distraction in sleep, and it is a common experience to be awakened by extreme cold. The ears, too, may be the source of disturbance in sleep; for even though we are asleep, the tympanic membrane is always exposed to vibrations of air. In fact, stimuli are continually playing upon the sense-organs and are arousing nervous currents which try to break over the boundaries of sleep and impress themselves upon the brain.

For this reason, one who wishes to have untroubled sleep should remove all possible distractions.

But apart from external distractions, wakefulness may still be caused by distractions from within. Troublesome ideas may be present and persist in keeping one awake. This means that brain activity has been started and needs suppression. Various devices have been suggested. One is to eat something very light, just enough to draw the surplus blood, which excites the brain, away from the brain to the digestive tract. This advice should be taken with caution, however, for eating just before retiring may use up in digestion much of the energy needed in repairing the body, and may leave one greatly fatigued in the morning.

One way to relieve the mind of mental distractions is to fill it with non-worrisome, restful thoughts. Read something light, a restful essay or a non-exciting story, or poetry. Another device is to bathe the head in cold water so as to relieve congestion of blood in the brain. A tepid or warm bath is said to have a similar effect.

Dreams constitute one source of annoyance to many, and while they are not necessarily to be avoided, still they may disturb the night's rest. We may avoid them in some measure by creating conditions free from sensory distractions, for many of our dreams are direct reflections of sensations we are experiencing at the moment. A dream with an arctic setting may be the result of becoming uncovered on a cold night. To use an illustration from Ellis: "A man dreams that he enlists in the army, goes to the front, and is shot. He is awakened by the slamming of a door. It seems probable that the enlistment and the march to the field are theories to account for the report which really caused the whole train of thought, though it seemed to be its latest item." Such dreams may be partially eliminated by care in arranging conditions so that there will be few distractions. Especially should they be guarded against in the later hours of the sleep, for we do not sleep so soundly after the first two hours as we do before, and stimuli can more easily impress themselves and affect the brain.

Before leaving the subject of sleep, we should note the benefit to be derived from regularity in sleep. All Nature seems to move rhythmically and sleep is no exception. Insomnia may be treated by means of habituating one's self to get sleepy at a certain time, and there is no question that the rising process may be made easier if one forms the habit of arising at the same time every morning. To rhythmize this important function is a long step towards the efficient life.

EXERCISE.—Brain workers do not ordinarily get all the exercise they should. Particularly is this true of some conscientious students who feel they must not take any time from their study. But this denotes a false conception of mental action. The human organism needs exercise. Man is not a disembodied spirit; he must pay attention to the claims of the body. Indeed it will be found that time spent in exercise will result in a higher grade of mental work. This is recognized by colleges and universities by the requirement of gymnasium work, and the opportunity should be welcomed by the student. Inasmuch as institutions generally give instruction in this subject, we need not go specifically into the matter of exercises. Perhaps the only caution that need be urged is that against the excessive participation in such exhausting games as foot-ball. It is seriously to be questioned whether the strenuous grilling that a foot-ball player must undergo does not actually impair his ability to concentrate upon his studies.

If you undertake a course of exercise, by all means have it regular. Little is gained by sporadic exercising. Adopt the principle of regularity and rhythmize this important phase of bodily activity as well as all other phases.

In concluding our discussion of physical hygiene for the student, we cannot stress too much the value of relaxation. The life of a student is a trying one. It exercises chiefly the higher brain centres and keeps the organism keyed up to a high pitch. These centres become fatigued easily and ought to be rested occasionally. Therefore, the student should relax at intervals, and engage in something remote from study. To forget books for an entire week-end is often wisdom; to have a hobby or an avocation is also wise. A student must not forget that he is something more than an intellectual being. He is a physical organism and a social being, and the well-rounded life demands that all phases receive expression. We grant that it is wrong to exalt the physical and stunt the mental, but it is also wrong to develop the intellectual and neglect the physical. We must recognize with Browning that,

all good things Are ours, nor soul helps flesh more, now, than flesh helps soul.

READINGS AND EXERCISE

Readings:

Patrick (14) Chapters I, II and VII. Stiles (18) and (19).

Swift (20) Chapter X.

Exercise 1. With the help of a book on dietetics prepare an ideal day's bill of fare for a student.

SUGGESTIONS FOR FURTHER READING

Besides the standard texts in general and educational psychology, the following books bear with especial intimacy upon the topics treated in this book:

1. Adams, John, Making the Most of One's Mind, New York: George H. Doran Co., 1915.

2. Dearborn, George V., How to Learn Easily, Boston: Little, Brown & Co., 1918.

3. Dewey, John, How we Think, Boston: D.C. Heath & Co., 1910.

4. Dewey, John, Interest and Effort in Education, Boston: Houghton, Mifflin Co., 1913.

5. Fulton, Maurice (ed.), College Life, Its Conditions and Problems, The Macmillan Co., 1915.

6. Hall-Quest, Alfred L., Supervised Study, New York: The Macmillan Co., 1916.

7. Herrick, C. Judson, An Introduction to Neurology, Philadelphia: W.B. Saunders Co., 1915.

8. James, William, Talks to Teachers on Psychology, and to Students on Some of Life's Ideals, New York. 1899.

9. James, William, The Energies of Men, New York: Moffatt, Yard & Co., 1917.

10. Kerfoot, John B., How to Read, Boston: Houghton, Mifflin & Co., 1916.

11. Lockwood, Francis (comp.), The Freshman and His College, Boston: D.C. Heath & Co., 1913.

12. Lowe, John Adams, Books and Libraries, Boston: The Boston Book Co., 1917.

13. McMurry, Frank M., How to Study, Boston: Houghton, Mifflin & Co., 1909.

14. Patrick, George T. W., The Psychology of Relaxation, Boston: Houghton, Mifflin & Co., 1916.

15. Sandwick, Richard L., How to Study and What to Study, Boston: D.C. Heath & Co., 1915.

16. Seashore, Carl E., Psychology in Daily Life, New York: D. Appleton & Co., 1918.

17. Seward, S., Note-taking, Boston: Allyn & Bacon, 1910.

18. Stiles, Percy G., Nutritional Physiology Philadelphia: W. B. Saunders Co., 1912.

19. Stiles, Percy G., The Nervous System and Its Conservation, Philadelphia: W.B. Saunders Co., 1914.

20. Swift, Edgar J., Psychology and the Day's Work, New York: C. Scribner's Sons, 1919.

21. Watt, Henry J., The Economy and Training of Memory, New York: Longmans, Green & Co., 1909.

22. Whipple, Guy M., How to Study Effectively, Bloomington, Ill.: Public School Publishing Co., 1916.



INDEX

Acquisition, vs. "construction" Activity, mental Association, laws of; in memory; in reasoning; in examination Attention; fluctuation of; resistance of distractions; lapses of

Bibliographies Bodily activities, in recognition; distractions in attention Brain, description of; elementary cells; tissue, properties of; tracts; areas

Charlemagne Clarification of ideas, through definition and classification; through expression Classification of ideas Class room College, difficulties; demands of Constructive study Cramming

Day dreaming Decision, in reasoning Definition Distractions, in attention; in sleep Dreams Drinking

Ennui Ethical, consequences, of habit; of expression Examinations, importance; purposes of; preparation for Exercise Expression; neural basis

Fasting Fatigue Feelings, pleasurable; unpleasant Fletcher, Horace Food

Geometry

Golf

Graphic methods; in measuring learning

Habit, defined; maxims for forming; advantages of; disadvantages of; in reasoning; of resisting fatigue

Ideas in reasoning how to clarify in fatigue stimulus of

Idea-motor action law of

Image defined kinds of

Imagination made of images works of sources how to develop visual, auditory, etc.

Impression guard avenues of clearness essential through various senses vs. expression

Indenture

Intention in memorizing

Insomnia see Sleeplessness

Inspiration

Interest defined sources development of laws of

Judgment

Kinaesthetic impressions

Lecture method notes

Logical associations in memorizing in reasoning

Mediaeval history

Memory importance in study stages of "unconscious" "whole" vs. "part" works according to law "rote" vs. "logical" intention

Mental second wind see second wind

Nervous current energy system in expression

Neurone

Note-taking lecture laboratory reading full vs. scanty form of notebook a habit

Obscurity in meaning

Outlines

Overlearning

Parker, Francis W.

Philology

Plateau remedies for

Pleasure in interest

Practice of recall curve of

Problem solving

Psalm of life

Public speaking overcoming embarrassment

Rathausmarkt

Read how to

Reason contrasted with rote learning as problem solving stages purposive thinking requirements for and habit

Recall

Recognition

Repetition, distribution of

Retention

Review, from notes

Romeo and Juliet

Schedule, daily

Second wind, physical mental sources of

Sensation, as impression bodily external in fatigue

Sleep

Sleeplessness

Stream of thought

Suggestion

Synapse

Theme writing

"Unconscious" learning see memory

Will

Writing a form of expression

THE END

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