Team investigates consequences of Deepwater Horizon oil spill

If you were able to stand on the bottom of the seafloor and look up, you would see flakes of falling organic material and biological debris cascading down the water column like snowflakes in a phenomenon known as marine snow.

Unraveling threads of bizarre hagfish's explosive slime

Hundreds of meters deep in the dark of the ocean, a shark glides toward what seems like a meal. It's kind of ugly, eel-like and not particularly meaty, but still probably food. So the shark strikes.

CRISPR-Cas9 may be a double-edged sword for bacteria

A team of researchers with the Catholic University of America has found evidence that suggests a defense mechanism used by bacteria to ward off phage attacks might also be benefiting the phages. In their paper published on ...

Researchers identify defense mechanism of malaria parasite

Portuguese researchers at Instituto de Medicina Molecular (iMM) Lisboa have identified a defense mechanism by which the Plasmodium parasite can survive inside its host's liver cells, a crucial stage in which it acquires the ...

Tiger moths use signals to warn bats: Toxic not tasty

Acoustic warning signals emitted by tiger moths to deter bats - a behavior previously proven only in the laboratory - actually occur in nature and are used as a defense mechanism, according to new research from Wake Forest ...

Investigators insert large DNA sequence into mammalian cells

For the first time, researchers have used a simplified technique derived from a defense mechanism evolved by bacteria and other single-celled organisms to successfully insert a large DNA sequence into a predetermined genomic ...

page 1 from 5

Defence mechanism

In Freudian psychoanalytic theory, defence mechanisms or defense mechanisms (see -ce/-se) are psychological strategies brought into play by various entities to cope with reality and to maintain self-image. Healthy persons normally use different defences throughout life. An ego defence mechanism becomes pathological only when its persistent use leads to maladaptive behavior such that the physical and/or mental health of the individual is adversely affected. The purpose of the Ego Defence Mechanisms is to protect the mind/self/ego from anxiety, social sanctions or to provide a refuge from a situation with which one cannot currently cope.

They are more accurately referred to as ego defence mechanisms, and can thus be categorized as occurring when the id impulses are in conflict with each other, when the id impulses conflict with super-ego values and beliefs, and when an external threat is posed to the ego.

The term "defence mechanism" is often thought to refer to a definitive singular term for personality traits which arise due to loss or traumatic experiences, but more accurately refers to several types of reactions which were identified during and after daughter Anna Freud's time.

This text uses material from Wikipedia, licensed under CC BY-SA