在自恋型人格障碍患者中，分裂也是他们使用的一个重要的防御机制，他们通过此机制来防御他们脆弱的自尊，维持他们有一个较好的自尊的感觉，也就是通过把自己看做是纯粹的好，把别人看做是纯粹的坏的方式来完成此功能。使用分裂的机制也暗含着会使用其他的防御机制，也就是贬低和理想化，否认。

   更多有关“分裂”的资料（From Wikipedia, the free encyclopedia）：

Splitting as a psychological phenomenon may be understood in two main senses – splitting of the mind, and splitting of mental concepts (or black and white thinking). The latter is thinking purely in extremes (e.g., good versus bad, powerful versus defenseless, and so on), and as such can be seen as a developmental stage and as a defence mechanism.

Contents [hide]
1 Splitting and relationships
2 Splitting and borderline personality disorder
3 Splitting and narcissistic personality disorder
4 Splitting in Janet and Freud
5 Splitting and Melanie Klein
6 Splitting and Otto Kernberg
7 Splitting and Transference
8 See also
9 References
 
[edit] Splitting and relationshipsSplitting creates instability in relationships, because one person can be viewed as either all good or all bad at different times, depending on whether he or she gratifies needs or frustrates them. This, and similar oscillations in the experience of the self, lead to chaotic and unstable relationship patterns, identity diffusion and mood swings. Consequently, the therapeutic process can be greatly impeded by these oscillations, because the therapist too can become target of splitting. To overcome the negative effects on treatment outcome, constant interpretations by the therapist are needed.[1]

Splitting leads to unstable relationships and intense emotional experiences. Treatment strategies have been developed for individuals and groups based on Dialectical behavior therapy, and for couples.[2] There are also self help books on related topics such as mindfulness and emotional regulation that have been helpful for individuals who struggle with the consequences of splitting.[3]

[edit] Splitting and borderline personality disorderThe borderline personality is not able to integrate the good and bad images of both self and others, so that people who suffer from borderline personality disorder have a bad representation which dominates the good representation.[4] This makes them experience love and sexuality in perverse and violent qualities which they cannot integrate with the tender, intimate side of relationships.[5]

These people can suffer from intense fusion anxieties in intimate relationships, because the boundaries between self and other are not firm. A tender moment between self and other could mean the disappearance of the self into the other. This triggers intense anxiety. To overcome the anxiety, the other is made into a very bad person; this can be done, because the other is made responsible for this anxiety. However, if the other is viewed as a bad person, the self must be bad as well. Viewing the self as all bad cannot be endured, so the switch is made to the other side: the self is good, which means the other must be good too. If the other is all good and the self is all good, the distinction at which the self begins and ends is not clear. Intense anxiety is the result and so the cycle repeats itself.

[edit] Splitting and narcissistic personality disorderPeople who are diagnosed with a narcissistic personality disorder also use splitting as a central defense mechanism. They do this to preserve their self-esteem, by seeing the self as purely good and the others as purely bad. The use of splitting also implies the use of other defense mechanisms, namely devaluation, idealization and denial.[6]

[edit] Splitting in Janet and FreudSplitting was first described by Pierre Janet, who coined the term in his book L'Automatisme psychologique. Sigmund Freud acknowledged Janet's priority, stating that 'we [Breuer and I] followed his example when we took splitting of the mind and dissociation of the personality as the centre of our position'[7]. However he also differentiated 'between our view and Janet's. We do not derive the psychical splitting from an innate incapacity for synthesis...we explain it dynamically, from the conflict of opposing mental forces...repression'[8].

With the development of the idea of repression, splitting moved to the background of Freud's thought for some years, being largely reserved for cases of double personality: 'The cases described as splitting of consciousness...might better be denoted as shifting of consciousness, – that function – or whatever it may be – oscillating between two different psychical complexes which become conscious and unconscious in turn'[9].

Increasingly, however, Freud returned to an interest in how it was 'possible for the ego to avoid a rupture...by effecting a cleavage or division of itself'[10]. His unfinished paper of 1938, "Splitting of the Ego in the Process of Defence", took up the same theme, and in his Outline of Psycho-Analysis (1940a [1938])...[he] extends the application of the idea of a splitting of the ego beyond the cases of fetishism and of the psychoses to neuroses in general'[11].

The concept had meanwhile been further defined by his daughter Anna Freud[citation needed]; while Fenichel summarised the previous half-century of work to the effect that 'a split of the ego into a superficial part that knows the truth and a deeper part that denies it may...be observed in every neurotic'[12].

Kohut would then systematize the Freudian view with his contrast between 'such horizontal splits as those brought about on a deeper level by repression and on a higher level by negation', and ' a vertical split in the psyche...the side-by-side, conscious existence of otherwise incompatible psychological attitudes'[13].

[edit] Splitting and Melanie KleinThere was, however, from early on, another use of the term "splitting" in Freud, referring rather to resolving ambivalence 'by splitting the contradictory feelings so that one person is only loved, another one only hated...the good mother and the wicked stepmother in fairy tales'[14]. Or, with opposing feelings of love and hate, perhaps 'the two opposites should have been split apart and one of them, usually the hatred, have been repressed'[15]. Such splitting was closely linked to the defense of 'isolation...The division of objects into congenial and uncongenial ones...making "disconnections"'[16].

It was the latter sense of the term which was predominantly taken up and exploited by Melanie Klein. After Freud, 'the most important contribution has come from Melanie Klein, whose work enlightens the idea of "splitting of the object" (in terms of "good/bad" objects)'[17]. In her object relations theory, Klein argues that 'the earliest experiences of the infant are split between wholly good ones with "good" objects and wholly bad experiences with "bad" objects'[18], as children struggle to integrate the two primary drives, love and hate, into constructive social interaction. An important step in childhood development is the gradual depolarization of these two drives.

At what Klein called the paranoid-schizoid position, there is a stark separation of the things the child loves (good, gratifying objects) and the things the child hates (bad, frustrating objects), 'because everything is polarised into extremes of love and hate, just like what the baby seems to experience and young children are still very close to'[19]. Klein refers to the good breast and the bad breast as split mental entities, resulting from the way 'these primitive states tend to deconstruct objects into "good" and "bad" bits (called "part-objects")'[20]. The child sees the breasts as opposite in nature at different times, although they actually are the same, belonging to the same mother. As the child learns that people and objects can be good and bad at the same time, he or she progresses to the next phase, the depressive position, which 'entails a steady, though painful, approximation towards the reality of oneself and others'[21]: integrating the splits and 'being able to balance [them] out...are tasks that continue into early childhood and indeed are never completely finished'[22].

However, Kleinians also utilize Freud's first conception of splitting, to explain the way 'In a related process of splitting, the person divides his own self. This is called "splitting of the ego"'[23]. Indeed, Klein herself maintained that 'the ego is incapable of splitting the object – internal or external – without a corresponding splitting taking place within the ego'[24]. Arguably at least, by this point 'the idea of splitting does not carry the same meaning for Freud and for Klein': for the former, 'the ego finds itself passively split, as it were. For Klein and the post-Kleinians, on the other hand, splitting is an active defence mechanism'[25]. As a result, by the close of the century 'four kinds of splitting can be clearly identified, among many other possibilities' for post-Kleinians: "a coherent split in the object, a coherent split in the ego, a fragmentation of the object, and a fragmentation of the ego"'[26].

[edit] Splitting and Otto KernbergIn the developmental model of Otto Kernberg,[27] the overcoming of splitting is also an important developmental task. The child has to learn to integrate feelings of love and hate. Kernberg distinguishes three different stages in the development of a child with respect to splitting:

First stage: the child does not experience the self and the object, nor the good and the bad as different entities.
Second stage: good and bad are viewed as different. Because the boundaries between the self and the other are not stable yet, the other as a person is viewed as either all good or all bad, depending on their actions. This also means that thinking about another person as bad implies that the self is bad as well, so it’s better to think about the caregiver as a good person, so the self is viewed as good too. 'Bringing together extremely opposite loving and hateful images of the self and of significant others would trigger unbearable anxiety and guilt'[28].
Third stage: Splitting – 'the division of external objects into "all good" ones and "all bad"'[29] – begins to be resolved and the self and the other can be seen as possessing both good and bad qualities. Having hateful thoughts about the other does not mean that the self is all hateful and does not mean that the other person is all hateful either.
If a person fails to accomplish this developmental task satisfactorily, borderline pathology can emerge. 'In the borderline personality organization', Kernberg found 'dissociated ego states that result from the use of "splitting" defences'[30]. His therapeutic work then aimed at 'the analysis of the repeated and oscillating projections of unwanted self and object representations onto the therapist' so as to produce 'something more durable, complex and encompassing than the initial, split-off and polarized state of affairs'[31].

Splitting and TransferenceIt has been suggested that interpretation of the transference 'becomes effective through a sort of splitting of the ego into a reasonable, judging portion and an experiencing portion, the former recognizing the latter as not appropriate in the present and as coming from the past'[32]. Clearly, 'in this sense, splitting, so far from being a pathological phenomenon, is a manifestation of self-awareness'[33]. Nevertheless, 'it remains to be investigated how this desirable "splitting of the ego" and "self-observation" are to be differentiated from the pathological cleavage...directed at preserving isolations'[34].