Defence mechanism
In psychoanalytic theory, defense mechanisms are unconscious psychological processes that protect the self from anxiety-producing thoughts and feelings related to internal conflicts and external stressors. We automatically use defences to protect ourselves from threats and affects to maintain psychological balance and homeostasis. Defenses are automatic responses to external stressors or internal conflicts.
Healthy people have a fully developed sense of "object constancy", knowing that bad and good can exist at the same time in the same person. A defense mechanism can become pathological when its persistent use leads to maladaptive behaviour such that the physical or mental health of the individual is adversely affected. Among the purposes of defense mechanisms is to protect the mind/self/ego from anxiety or to provide a refuge from a situation with which one cannot cope at that moment.
Definition from Wikipedia – Defence mechanism
Sigmund Freud
Sigmund Freud (born Sigismund Schlomo Freud; 6 May 1856 – 23 September 1939) was an Austrian neurologist and the founder of psychoanalysis, famous for such revolutionary ideas as the unconscious mind, defense mechanisms, infantile sexuality, transference (the notion that childhood relationships influence relationships in adulthood), the division of the human personality into id, ego, and superego, and finally for the talking cure, a notion that has provided the basic format to all varieties of psychotherapy since.
Freud was born to Galician Jewish parents in the Moravian town of Freiberg, in the Austrian Empire (now Příbor, Czech Republic). He qualified as a doctor of medicine in 1881 at the University of Vienna. Upon completing his habilitation in 1885, he was appointed a docent in neuropathology and became an affiliated professor in 1902. Freud lived and worked in Vienna, having set up his clinical practice there in 1886. Following the German annexation of Austria in March 1938, Freud left Austria to escape Nazi persecution. He died in exile in the United Kingdom in September 1939.
In founding psychoanalysis, Freud developed therapeutic techniques such as the use of free association...
Definition from Wikipedia – Sigmund Freud
Anna Freud
Anna Freud CBE ( FROYD; Austrian German: [ˈana ˈfrɔʏd]; 3 December 1895 – 9 October 1982) was a British psychoanalyst of Austrian Jewish descent. She was born in Vienna, the sixth and youngest child of Sigmund Freud and Martha Bernays. She followed the path of her father and contributed to the field of psychoanalysis. Alongside Hermine Hug-Hellmuth and Melanie Klein, she may be considered the founder of psychoanalytic child psychology.
Compared to her father, her work emphasized the importance of the ego and its normal "developmental lines" as well as incorporating a distinctive emphasis on collaborative work across a range of analytical and observational contexts.
After the Freud family were forced to leave Vienna in 1938 with the advent of the Nazi regime in Austria, she resumed her psychoanalytic practice and her pioneering work in child psychoanalysis in London, establishing the Hampstead Child Therapy Course and Clinic in 1952 (later renamed the Anna Freud National Centre for Children and Families) as a centre for therapy, training and research work.
Definition from Wikipedia – Anna Freud