This reciprocation on the part of the child of the heterosexual preferences of the parents undoubtedly plays a very large part in the development of normal heterosexuality: just how large is this part compared with that played by the instinctive heterosexual reactions of the child, it is difficult or impossible to say in the present state of our knowledge, since in any given case the two factors are apt to be very closely interrelated. The question is of interest because the relative influence of the two factors must, it would appear, largely determine the extent to which the direction of a child's sexual desires is dependent upon innate and upon environmental causes respectively. Should the direction of a child's object love toward persons of one sex rather than toward those of the other be largely determined by the manifestations of affection that the child receives, it would seem that the sexual inclinations of the parents must exert a great influence in the formation of the sexual character of their children, e. g. that marked heterosexuality in the parents would tend—through its effects on parental preferences and quite apart from any hereditary influences—to produce equally developed heterosexual inclinations in the children, whereas homosexually disposed parents would tend in a similar way to bring up homosexual children.
If on the other hand, the direction of a child's object love depends chiefly upon innate instinctive factors, the sexual dispositions of the parents will play a much less important rôle in the mental history of the child and will be influential only in so far as they are directly inherited. The progress of psychological research, statistical and psycho-analytic—will, we may hope, cast much light upon this problem in the near future.
Another interesting question relating to the direction of Homosexual and heterosexual development in girls object love towards the parents is connected with the fact that, in the case of female children, the influences making towards heterosexual choice of object would seem, under normal conditions of upbringing, to be liable to conflict with the tendency for the affections of the child to go out in the first place towards those to whom the child is chiefly indebted for the satisfaction of its more immediate bodily needs. Under these circumstances it might perhaps be expected that it would be usual for girls to pass through a stage of mother love before transferring the greater part of their affection to their father. There is much reason to think that the number of girls retaining an unusual or pathological degree of mother love in later years is greater than the number of boys retaining a corresponding degree of father love; if this be the case, it may perhaps be held to show that the mother is indeed the first object of affection in both boys and girls and that some of the latter retain marked traces of this stage of their development throughout subsequent life. Additional evidence pointing in the same direction seems to be forthcoming from a number of pathological cases among adult women, the study of which has revealed the existence of a persistent and intense attachment to the mother; this attachment being of an infantile character and situated in a deeper and more inaccessible layer of the Unconscious than the father love, which appeared to have been, in the process of growth, as it were, superimposed upon the earlier affection. If father love in girls should prove to be normally built upon the remains of an earlier period of exclusive mother love which is common to both girls and boys, it is evident that in this respect the development of heterosexual object love in girls is a rather more complex process than it is in boys. This greater complexity of the process of development may, as Freud himself has pointed out in a somewhat different but not altogether unrelated connection[10], become the cause of a number of those failures of adjustment to the conditions of adult life—sexual and general—that are found to underlie the neuroses. The greater incidence of certain neurotic disturbances among women as compared with men may perhaps ultimately be due in part[11] to the greater complexity of the original process by which the object love of the child comes to be directed to the parent of the opposite sex.
With the firm establishment of object love towards the Jealousy parent of the opposite sex, the conditions are present for the arousal of jealousy towards the parent of the same sex, since this latter is soon found to possess claims upon the affection and attention of the loved parent which are apt to conflict with the similar claims of the child. Thus the young girl begins to resent the affection and consideration which her mother receives at the hands of her father and comes in time to look upon her mother as in some sense a sexual rival who competes with her father's love. In imagination she will allow herself to occupy her mother's place and may even attempt to put this fancy into practice, if opportunity should offer; as in the case cited by Freud[12] of the eight year old girl who openly proclaimed herself as her mother's successor when her mother was absent on occasion from the family table, or in the still more striking case of the four year old child who said:—"Mother can just stay away now; then father will have to marry me and I shall be his wife." Boys experience a similar jealousy towards their father and often come to regard his presence in the family as that of an intruder or interloper who disturbs the otherwise peaceful and loving relations between his mother and himself. This view of the father as intruder is particularly liable to occur if (as so frequently happens) the father is absent from the home for relatively long periods during the working hours of the day or even for several days or weeks on end[13]. Even in the cases where the father is not frequently away from home, his continued presence is sooner or later found to be irksome in the same way as is the mother's in the case of girls, and the desire for his removal will gradually begin to make itself felt, if not in consciousness, at least in the unconscious levels of the mind.
The hate aspect of the Œdipus complex would thus seem normally to arise in the first place as a consequence of the love aspect, the affection felt by the child towards the parent of the opposite sex bringing about a resentment at the presence of the other parent; this latter parent being looked upon as a competitor for the affections of the loved parent and a disturber of the peace of the family circle. But though in its origin the hate aspect is thus usually a secondary phenomenon, it may under suitable conditions grow to equal or even to excel in importance the love aspect from which it in the first place arose. This is especially liable to be the case when, in addition to the specific interference with the love activities of the child, the parent in question Causes of parent-hatred causes more general interference with the child's desires and activities, by adopting a harsh, intolerant or inconsiderate attitude towards the child in their everyday relations or as regards matters in which the child's interests and ambitions are more especially concerned. To the envy and jealousy felt towards a competitor and rival there is then added the hatred and desire for rebellion against a tyrant and oppressor; and the complex emotions thus aroused may engender a hostile sentiment of such intensity as, in some cases, to constitute one of the dominant traits of character, not only of childhood but of the whole of adult life.
Only second in importance to the attitude of the child Hatred between brothers and sisters towards its parents are its relations to its brothers and sisters. Under the conditions of normal family life, brothers and sisters are, after the parents, the most important persons in the environment of the young child, and it is but natural that these persons should be among the earliest objects of the developing love and hate emotions of the child. Whereas, however, in the child's relations towards its parents, love would seem to be the emotion that is usually first evoked, in its dealings with the other junior members of the family, the opposite emotion of hate is in most cases the primary reaction. This fact can be easily explained as to a great extent a natural consequence of the necessary conditions of family life. Brothers and sisters possess claims upon the attention and affection of the loved parent (especially when that parent is the mother) which are apt to conflict seriously with one another and may on occasion be felt by the respective claimants to be almost if not quite as irksome and exorbitant as those of the other parent, whose competition with the child in this respect we have already noted. From this source there frequently arise feelings of violent jealousy between brothers and sisters, and the attitude of hostility thus evoked may be increased, or at any rate prevented from disappearing, by the fact that children of the same family have to share not only the affection of their parents but, to some extent at least, their material possessions and enjoyments also.
The works of psycho-analytic writers contain numerous examples of such brother and sister hatreds in early years. As a rule the younger child resents the advantages and privileges of which it finds the older children already in possession; it finds itself in many respects compelled to submit to the superior size and strength and experience of the older children, whom it is therefore inclined to regard as tyrants, the only refuge from whose brutal power lies in appeal to the still higher adult powers who control the destinies of the nursery. Older children, on their part, are inclined to regard any new arrival in the family circle as an intruder upon their own preserves and a competitor for their own cherished rights, privileges and possessions. Hence the announcement of such a new arrival is in many cases greeted, in the first instance, with anything but joy, and the wish is often expressed that the intruder should depart again whence he came. Indeed it would seem probable from some cases that not a little of the interest displayed by children in the processes of conception, gestation and (more especially) birth, is due to the fact that these processes are intimately connected with the appearance of a new brother or sister to disturb the peaceful monopoly of the family possessions and affections which the elder children have hitherto enjoyed. In other cases, again, the resentment felt towards the new intruder may be so great that it may even find expression in an actual attempt on the part of an older child to do away with the younger one[14] should a convenient opportunity for this present itself.
Although jealousy and hatred are thus apt to be the first Love between brothers and sisters emotional reactions of brothers and sisters towards one another, there can be no doubt that a brother or sister may from the beginning be an object of affection, the object love of the child being directed towards its brother or sister in much the same manner as towards its parent. This is much more likely to happen in relation to an elder than in relation to a younger member of the family and occurs most frequently when there is a considerable difference in age between the children concerned, so that interests and desires no longer conflict and overlap to the same extent as they do in the case of children of approximately equal age. The most favourable conditions for the direction of a child's object love in this manner are to be found in those large working-class families, where an elder sister frequently takes over some of the attributes of the mother as regards the younger children. In such a case the feelings of the younger child (particularly if that child be a boy) towards its elder sister are usually of an affectionate nature from the very start.