As a point of departure, suppose we take the assumption that, with certain limitations, a psychophysical adjustment, not in the ordinary sense instinctive, accounts for the genesis of imitation. This adjustment depends on the fact that in conscious activity a necessary connection exists between the movement produced and the antecedent concept of the movement. On the one hand, then, a movement is said to be voluntary only when the motor act is accompanied with such an idea of movement, while the other view implies that the idea itself is the thing which urges its own fulfilment.[535] If this is so, the mere concept of the movement performed by another impels us to perform it as well, and hence arises imitation. Although the difficulty is to establish the correctness of this assumption,[536] yet we may be pretty sure that the concept of a possible movement, if not crippled by antagonistic motives, does induce a certain readiness for fulfilment.[537]

This analysis, it is true, acquaints us with a necessary condition of imitation, but as little accounts for the amazing force of the impulse as the mere conception of movement accounts for voluntary activity. While every concept may impel to the corresponding motor act, we know from experience that such tendencies to form habits are checked and aborted by all sorts of hindrances, mere inertia being sufficient in many cases to counteract the motive power of such concepts. There must be special reasons, then, which lend to the perception of a movement performed by another such extraordinary motive power. We have still to meet the question whether there may not be an inherited relation developed on the foundation and presupposition of the “readiness” described above. The thousand sensory motor paths involved in it can not be determined by heredity, since they presuppose acquired experience (as in learning to speak, first crude experimentation, then imitation). But the strength of the pleasurable quality in the reproduction of a movement accomplished first by another, the strenuousness of the effort which presses for expression, as well as the seriousness of the disappointment in cases of failure, are direct results of selection and the developmental factors connected with it. In support of this proposition we may refer to the social instincts, the simplest of which is the associativeness of members of the same race, tribe, or faction. Its demands lead to a kind of imitation, at least in movement impulses (Hudson assures us that the young pampas sheep runs the instant it is born after its rapidly running mother), and the impulse to answer a warning or alluring call. Pleasure in satisfying this genuine instinct is especially evident where one of the participants (they being usually of the same species) accompanies the signal with appropriate movements.

I permit myself no judgment of the value of this hypothesis, but I believe its adequacy to meet the case is incontrovertible. Bain, too, in the fourth edition of his work cited above, has made a suggestion looking in the same direction, by which the use of the word instinct gains a certain justification. Nor should it be forgotten that to strengthen this “readiness” a whole series of other requirements may be present, which for convenience in this analysis I may call instinctive. Perhaps an illustration of a movement concept which is not imitative in the ordinary sense will make this clear. If we think intentionally and definitely of the movements involved in whistling, we are likely to feel a mild inclination to whistle, which, however, is commonly easy enough to overcome. Therefore we call it a certain “readiness” in preference to a stronger term, such as “impulse.” But let this mental process take place in church during service; the corresponding action, it is true, is not performed, because of the influence of contrary motives, but the impulse may nevertheless be so strong that their subject suffers great annoyance. Why is this? Probably because the idea of not whistling excites the instinctive impulse toward activity of the movement apparatus (experimentation) as well as the fighting instinct,[538] which resents such constraint and lends itself as a powerful auxiliary to the movement impulse. It is just in this way that the perception of movement made by another arouses special instinctive emotions, and illustrates the power of the imitative impulse. This, then, is a brief explanation of the grounds of the theory developed above, according to which imitation serves as a complement to instincts which have been weakened in favour of intellectual development or are, for whatever reason, inadequate to the individual’s life tasks.

Thus we know that a child has the impulse to make use of his motor apparatus, but this impulse is strengthened when another person makes a movement which attracts the child’s attention. The concept as such produces a mild inclination and the natural impulse to move weighs down the scale. The little girl inherits an instinct for nursing; alone, it would probably not be strong enough to originate nursing play, and quite as little would the idea of the movements involved which the child acquires from watching her mother have that result (as witness, the boy). The two together produce the familiar result. In the same way the boy’s fighting instinct impels him to imitate all warlike demonstrations. We may say that the “what” of the subject is answered by the movement idea and the “that” predominantly by the corresponding instinct, though acquired necessity of course may do the same thing. Moreover, imitation has a special affinity for curiosity and the fighting instinct. The former asks concerning an unusual movement by another, “How does he do it?” and an effort to experiment at once ensues, while the fighting instinct is on the alert at the perception of a difficulty, and loses no time in overcoming it in order to enjoy the “I can, too,” of success. This success may be a triumph over the model, since if no superiority is proved we arrogate to ourselves a capacity which up to this time has been the property of another.[539] It may, however, be mere pleasure in overcoming the difficulty, as when we try to imitate qualities which we admire in another, adding to the combative impulse the desire to make one’s self agreeable or to subordinate others. But so far as conscious playful imitation is directly concerned, the struggle with difficulties is still in the foreground. We must remember, too, that with many of the higher kinds of imitation—pre-eminently so with that which may be called constructive, since its material is invariably appropriated from foreign sources—the pleasure which is derived from recognition and from illusion adds to its play the powerful charm of imagination.

Although I have presented here only a few of the leading features which an analysis of the imitative processes reveals, enough has been said to show how complicated and difficult the problem is, and to render advisable a general summing up in more compact form of the results of these somewhat rambling observations. It will not do to call imitation instinct and leave it at that, since it is not a specific but quite an involved reaction. Moreover, the condition of imitation, namely, the tendency of movement ideas to produce corresponding movements, is not itself instinctive; but we have seen that this tendency alone does not explain all that we include under the name of imitation. This tendency of the movement ideas must have special grounds furnished by organic needs, and especially those which are instinctive; when the general idea of movement is coincident with one of these the impulse toward discharge becomes very strong. We cited in illustration of this the general movement-impulse, nursing, curiosity (how is it done?), belligerence (not only as regards distinctly hostile movements, but sensation as well), recognition, and illusion. If there is nothing else, then imitation taken alone is no instinct; it is only in very close connection to instinct, as our biological point of view has shown. It is, however, probable that these limits are not reached by the simplest imitation, such as coughing, gaping, etc., and use may be made of the hypothesis of transference (loi de transfert) from specific social instincts, which are themselves the result of a certain degree of imitativeness of the movement idea (agreement, answering, and the like) to movement itself in cases involving the movements belonging to a species. By this means natural selection of whatever developmental factor is employed acquires an essential impetus. Whoever regards such collaboration as probable will consider imitation as a phenomenon at least similar to instinct.

Thirdly—and this point will be quickly disposed of—when is imitation to be regarded as play? Evidently we must apply the psychological criterion; imitation is a play when it is enjoyed for its own sake.[540] Imitation transcends play at its highest and lowest limits. Simple reflex reactions, such as gaping when another gapes, fleeing because another has fled, etc., can not be called play in a psychological sense, nor is the child’s first reproduction of sounds playful. Only when he repeats the performance from enjoyment of his success can we be sure of the thing from a psychological standpoint.[541] The limit is passed in the other direction by rendering the movements mechanical, so that the imitation is performed involuntarily, no longer affording enjoyment of the act itself, as it is now directed toward the external aim. Here belong imitative teaching (so far as it is not in itself enjoyable) and the imitation of an exemplary personality or ideal which is so important to ethics. In the latter, however, a suggestion of playfulness is sometimes present, though it would seem that nothing could be further from the proper sphere of ethics; when poetic figures serve as models, however, it is sometimes hard to mark the limit between the serious and the playful.[542]

In conclusion, I would remark that imitation is almost never merely that; it is creation as well, production as well as reproduction. Close on the heels of imitation comes imagination, and that in the double meaning of the word which we have learned to know. Imagination expands the copy into a full likeness of the original, and then creates the illusion that it is the original. However, imitation may actually be new creation. As Baldwin lucidly puts it, the child’s persistent imitation calls into the arena with the satisfactory copy a host of new combinations which may be non-essential to this special aim, but which claim the child’s attention and interest as discoveries of his own. He is often so interested in these unexpected combinations as to lose sight of his original purpose, and runs to his parents or comrades to show what he can do.[543]

In turning to the consideration of imitative plays I prefer to divide them into the following groups for the sake of convenience. First, I shall speak of playful imitation of simple movements, which are preparatory to more complicated processes, distinguishing between optical and acoustic percepts. Then follow two important specialized groups, namely, the dramatic and plastic or constructive imitation; and finally I shall treat inner imitation as a fourth kind of play.

1. Playful Imitation of Simple Movements