Splitting is one of the central defense mechanisms in borderline personality disorder. It explains why those affected often perceive their environment in extreme categories — either as completely good or completely evil.
Projection means not seeing one’s own aspects in oneself, but instead transferring them onto another person and combating them there. For the person with borderline, “combating” often means annihilation.
Projection also means that one’s own imago (inner image) is projected onto the other person.
The splitting mechanism is an early and primitive way of coping with psychological stress. This defense mechanism is normally superseded by the next higher form — repression.
Splitting occurs chronologically before repression
Splitting means flight
It is deployed against an internal “drive danger” (ID)
But only when this is treated as if it were an external danger signal
This is why the person with borderline is constantly ready to react with panic attacks as soon as their protective mechanisms are attacked — or they perceive it as such.
Since splitting requires less “counter-cathexis energy” than repression, it is easier for the person with borderline to resort to this mechanism — especially since they have not developed the next higher mechanism.
Repression and splitting are both protective mechanisms of the EGO. The disadvantage of splitting is that — in contrast to repression — the split-off influences (energies) remain permanently present and are not resolved.
Idealization is a necessary component of human development — especially the image of parents. This process is important for the formation of the ideal EGO.
The ex-partner of a borderline relationship does the same thing as the little child with borderline once did: They idealize the partner, even though this person is causing them such terrible pain. A protective mechanism of the soul.
As a child, it often happens that the parents are idealized and the child blames itself for “not being loved.” Here all three disorders come into play:
Borderline
Narcissist
Eating disorder
The Central Mechanism
The child projects its aggression onto the loved object but must simultaneously idealize it in order to protect it from destruction by the aggression.
The EGO acts as a buffer zone to neutralize energies.
Left: In an integrated psyche, the EGO mediates between ID and SUPER-EGO. Right: In borderline splitting, the EGO is fragmented — the drive forces of the ID shoot through unchecked.
The person with borderline sees their counterpart as an attacker when they devalue them. They perceive them only in partial aspects, not as a whole person. In that moment, they do not know that this person can also be good.
To protect themselves, they apply projective identification:
They introject (internalize) the hated and feared object
The person with borderline projects “their” guilt onto the other
To be able to do this, they must identify with the other (projective identification)
They thus become the other
Only now can they combat “their” bad aspects in the other
Combating means for them: annihilating
They thus annihilate “their” bad aspects within themselves
But they annihilate the other in the process, because they are no longer “themselves” but the other
Put simply: They annihilate aspects that they attribute to the other but that exist only within themselves. Since this does not work (the other does not actually have these aspects — they are only imaginary), the other person is annihilated.