VIPROGRESS TOWARD GRASPING.
Thebaby’s development, as I have said, consisted now mainly in forming association groups in her mind in two series, which we might call a sight-motor series and a touch-motor series. There had been a leap forward in the sight-motor series when “accommodation” was learned. Now the touch-motor series came to the front, and step by step led on to the great accomplishment of grasping.
First, when we laid the baby’s face up against ours, her little tongue was put out to lick the cheek that she felt, warm and smooth, against her lips. This was a more advanced use of active feeling than the mere passing of her tongue over her own lips, for that must have been done accidentally manytimes before she began to do it on purpose; and the association between the movement and the feeling had been helped by the double sensation—one feeling in the lips and another in the tongue every time they touched.
This doubling of sensation, which occurs every time one part of the body touches another part, often seemed to wake special attention in the baby, and thus help on a development. Later, it had a great part to play in teaching her the boundaries of her own body, and the difference between the Me and the Not-me. Even now, she must have been somewhat aware of a different feeling when she passed her tongue over her own sensitive lips, and when she passed it over the unresponsive cheek of some one else.
So far, the tongue, not the hand, was her organ of touch. But now the fingers were showing the first faint sign of their future powers—nothing more than a little specialsensibility, such as the lips had shown in the first month: we would see the baby holding her finger tips together prettily (when by chance they had collided), as if there were a feeling there that interested her. Here again there was double sensation.
In these same early days of the third month there was beginning another development that was to end by making the hand the successful rival of lips and tongue for purposes of grasping and feeling. The baby was trying to get her fists to her mouth.
The movement of the hands toward the head is a common one in the first weeks, by reason of prenatal habit, and thus it had often happened that the little fists, or as much of them as could be accommodated, had blundered into the mouth; and interesting sensations (double sensations again, in fists and mouth) had been experienced. The baby had at the same time felt in her arms the movement that always went with these interesting sensations, and now shewas trying to repeat it. Within a week she had mastered it, and could mumble and suck her fists at will—a great addition, naturally, to the comfort of life.
Meanwhile the reflex clasping, which had always taken place when an object was laid in the baby’s palm, was growing firmer and longer, and more like conscious holding; and I noticed that the thumb was now “opposed” in clasping—that is, shut down opposite the fingers, an important element in the skill of human grasping. And now, when the fingers came in contact with convenient things—folds of the towel, for instance—the hands would clasp them mechanically, just as the lips, since the first month, had laid hold on a breast or cheek that touched them.
This had an important result. The little hand would presently go to the mouth, still mechanically clasping the fold of towel or dress, which in consequence was sucked and mumbled, too. In this way the baby gotsundry novel sensations, and a chain of associations began to form: she was to learn thus, by and by, that when she felt touch sensations in her fingers, she could get livelier ones in her mouth (and also the pleasant muscular feeling of sucking), by the movements of clasping, and of lifting her arm. But she had not yet learned it: objects (except her own hands) were still carried to her mouth only by accident.
By the twelfth week the baby had found that her thumb was better for sucking purposes than chance segments of fist, and could turn her hand and get the convenient little projection neatly into her mouth. She got hold of it more by diving her head down to it than by lifting the hand to the mouth. Seizing with the mouth, by motions of the head, like a dog, instead of using the hand to wait on the mouth, seemed still her natural way.
But the hands were gaining. In this same twelfth week I saw the little finger tipsgo fumbling and feeling over our hands and dresses. They, too, had learned active touch, as the tongue had learned it more than a month before.
Just at this time we began to bring the baby to the table—nominally so that no one need stay away from meals to look after her; really for the sake of her jovial company at our sober grown-up board, where she would sit, propped amid cushions in her high chair, gazing and smiling sociably at our faces, crowing and flourishing her arms in joy at the lights and the rattle of dishes, forming the sole topic of conversation to an extent that her bachelor uncle had his private and lonely opinion about. The high chair was one of those that have a wooden tray fastened across the front, and here were placed several handy objects—rattle, and ring, and string of spools. This was by the wisdom of grandma, who saw the approach of the power of grasping. One may often see the little hands fluttering empty, the littlebrain restless, craving its natural development (for grasping is much more a matter of brain development, through the forming of associations, than of hand development), when there is no wise grandma to see that rattle and ring and spools lie “handy by” a littlebeforethe baby is ready to use them. To wait till he knows how to grasp before giving him things to practice on is like keeping a boy out of the water till he knows how to swim. Such impeding of the natural activities is responsible for a good deal of the fretting of babies.
It was not three days till I saw the little hands go fumbling across the tray, seeking the objects they had become used to finding there; and when they touched rattle or spool, they laid hold on it. Nor was this the old mechanical clasping: it was voluntary action, and as clumsy as new voluntary action is apt to be, compared to involuntary. The baby did not know how to turn her hand and take up a thing neatly: if shetouched it in such fashion that she could shut down her fingers on it somehow or anyhow, she would manage to lift it—stuck between two fingers from behind, once, when the back of her hand had touched it; if not, she would go on fumbling till she did. In two or three days more she was laying hold on things and carrying them to her mouth with plain intention.
Here was a sort of grasping, but it was grasping by feeling only. The baby had yet no idea of an object, which she could locate with the eye and then lay hold on with the hand. She had simply completed the chain of association I spoke of above: she had learned, that is, that after certain groping movements, feelings of touch appeared in her hands; and that then, after movements of clasping and lifting, these feelings reappeared in more lively and pleasing form in her mouth. She never looked at the objects she touched. There is no reason to think they could have been to her anything morethan sensations in her own hands and mouth. The sight-motor and touch-motor series had not yet coalesced. But in these last days of the third month both had come to the point where they were ready to begin the fusing process, and give the baby her world of outer objects.
Before I go back to relate what had been going on meanwhile in the sight-motor series, I must stop to speak of some other developments of the month.
Memory, for one thing, had plainly advanced. By the tenth week the baby had shown some doubtful signs of knowing one face from another; and in the twelfth she plainly recognized her grandfather with a smile and joyous cry, as he came in. Her first recognition, therefore (it is worth while to notice), was not of the mother, the source of supplies, but of the face that had offered most entertainment to the dawning mental powers, not only because of the white beard, the spectacles, and the shining bald brow,but because of the boyish abandon with which grandpa played with her, ducking his face down to hers.
A few days later she showed that she knew at least the feeling of her mother’s arms. For some weeks no one else had put her to sleep; and now when sleepy she fretted in other arms, but nestled down contentedly and went to sleep as soon as she felt herself in her mother’s. The association of that especial feeling had become necessary to sleep.
The instinctive language of sign and sound had developed a good deal. From the first day of the month, the baby’s joy in sights began to be expressed more exuberantly, with flying arms and legs, with panting, murmuring, and babbling, smiles and even small chuckles, and sometimes little shouts and crows. A new look of grief, too, the parallelogram shaped mouth that all babies make in crying, appeared.
In the tenth week she began to turn her head aside in refusal or dislike—a gesturethat one may see far down in the animal kingdom. A dog, for instance, uses it very expressively. It comes plainly from the simple effort to turn away from what is unpleasant, and develops later to our shake of the head for “No;” and when we notice how early the development of control over head and neck is, how much in advance of any use of the hands, we see that it is natural for this to be the oldest of all gestures.
In the last days of the month came two notable evidences of growing will. One was the baby’s persistent effort to get the tip of her rattle (it was set on a slender ivory shaft) into her mouth. Sometimes it went in by chance; sometimes it hit her lip, and in that case she would stretch her mouth to take it in, moving her head rather than the rattle. But if it brought up against her cheek, too far away to be captured by such efforts, after trying a little, she would lower the rattle, and make a fresh start for better luck.
This may seem highly unintelligent action; yet after all, as Professor Morgan says, it is by the method of “trial and error” that most of our acts of skill (and perhaps all such acts of the lower animals) are learned. In trial after trial the baby associated the muscular feeling of the successful movement with the feeling of the rattle tip in her mouth, and repeated these movements more and more correctly, dropping the unsuccessful ones. In just this way the sharpshooter, through repeated trials and misses, learns to deflect his rifle barrel this way and that with an infinite fineness of muscular contractions, which he could never get by reasoning on it.
The other effort of will was in sitting up. During the whole month the baby had insisted on a sitting position, and had wailed as vigorously over being left flat on her back as over being left hungry. She had soon tried to take the matter into her own hands, and made many efforts to lift herself, sometimesby pulling on our fingers when we had laid them in her hands, sometimes by sheer strain of the abdominal muscles. She never succeeded in raising more than her head and shoulders till the last week of the month: then she did once lift herself, and in the following days tried with the utmost zeal to repeat the success. She would strive and strain, with a grave and earnest face, her whole baby soul evidently centred on the achievement. She would tug at our fingers till her little face was crimson; she would lift her head and shoulders and strain to rise higher, fall back and try it again, till she was tired out. The day she was three months old, she tried twenty-five times, with scarcely a pause, and even then, though she was beginning to fret pitifully with disappointment, she did not stop of her own accord.
Unless she began with a somewhat high reclining position, or her feet or hips were held, her little legs would fly up, and shecould not get the leverage to lift her body. For that matter, even with us the legs are lighter than the trunk, and few women can overcome the difference, and lift themselves by sheer strength of the abdominal muscles, without having the feet held: and a baby’s legs are so much lighter than ours that it must be for several years a sheer impossibility for him to do it.
However, in the few cases when the baby did manage, by some advantage of position, or by holding to our fingers, to lift herself, she could not balance in the least, and toppled over at once. What with this discouragement, and restraint from her elders, who thought her back by no means strong enough yet for sitting alone, she soon after gave up the effort to raise herself, and waited till she was older.
It was in this same eventful thirteenth week that the baby first looked about, searching for something that was out of sight. A lively young girl with brightcolor and a charming pair of dangling eye-glasses was visiting us, and stood by, laughing and prattling to the baby while she was bathed. The little one, greatly interested, turned her head, smiling and crowing, to watch Miss Charmian’s movements, and to look for her when she was out of sight. In this, as in the definite efforts to feel the rattle tip in her mouth, and to renew the sensations of sitting up, we see action guided by an idea of that which is absent, that is by imagination, to a certain extent at least; though it is probable that there was still as much of the mere working of association as of definite ideas. The memory that the baby showed when she looked about, searching for an expected sight, instead of simply turning to an accustomed place, is clearly more than mere habit memory. Yet it was still not true memory: it was not an idea coming back to the mind after an interval, but only a sort of after-shine of the thing, held in the mind for a few moments after the thing itself had disappeared.
And now to come back to the sight-motor series: Did the baby still see objects only as blurs of light and shade? She had the full mechanism of her eyes in working order as soon as accommodation was acquired; but it is certain that it takes much practice to learn to use that mechanism. It is an old story that people born blind, receiving their sight by surgical operations, have tolearnto see. Professor Preyer quotes from Dr. Home the case of a twelve year old boy who, nearly a month after the operation, could not tell whether a square card had corners or not by looking at it; and of another seven year old boy who had to learn to recognize triangles and squares (which he knew well by touch) by running his eye along the edges and counting the corners. It must have taken immense practice for us all to learn to flash the eye so quickly over and about an object that we seem to take in its shape with one look. This was the task that lay before the baby now.
How long it took we can only guess. Some observers have taken it for granted that the first recognition of a face showed clear seeing had arrived. But the group of lights and shades is so different in each face that a baby might well learn to know them apart without distinct outlines. We have all seen French paintings in which the eyes, the smile, some high lights on cheek, chin, and nose, and a cloudy suggestion of hair and beard, are all that emerge from the dark canvas, and yet we may see easily for whom the portrait is meant. Our baby had recognized no face yet except her grandfather’s, where the beard, spectacles, and shining bald brow made recognition easy without any outline.
But in another direction we get a plainer hint. I have spoken above of the joyous excitement roused in the baby by interesting sights (not only faces now, but also sundry bright things, and dangling, moving things) early in the month. By the middle of themonth her smiles were fewer, and she looked about her earnestly and soberly; and in the last week I noted, without understanding, the expression of surprise that had come into her face as she gazed this way and that. The wide, surprised eyes must have meant that something new was before them. Were things perhaps beginning to separate themselves off to the baby’s sight in definitely bounded spaces?
I must go on into the record of the next month for more light on this question: for the wonder grew day by day, and for weeks the baby was looking about her silently, studying her world. She would inspect the familiar room carefully for many minutes, looking fixedly at object after object till the whole field of vision was reviewed, then she would turn her head eagerly and examine another section; and when she had seen all she could from one place, she would fret till she was carried to another, and there begin anew her inspection of the room in itschanged aspect—always with the look of surprise and eagerness, eyes wide and brows raised.
We can only guess what was going on in the baby mind all this time; but I cannot resist the thought that I was looking on at that very process which must have taken place somewhere about this time—the learning to see things clear and separate, by running the eyes over their surfaces and about their edges.
With this, sight and muscle sense alone, touch and muscle sense alone, had done all they could to reveal the world to the baby, and there lay close before her the further revelations that were to be made when touch, sight, and muscle sense could be focused all together on the objects about her. It was a wonderful sight to see, as the baby pressed forward to the new understanding, eager, amazed, and absorbed.