Fact of what happen to children in NAZI concentration camp during the holocaust

  John Broadus Watson, founder of the behaviorist school, in an experiment with babies. Years 20-30 of the 20th century.

In the image it seems that he is experiencing the palmar reflex, a primitive instinct in which, before a gentle stimulus on the palm, the baby closes his fingers and squeezes. This reflex is lost within a few months of life.

Watson was severely criticized for experimenting on infants. There is speculation as to whether he created lifelong traumas in some of them. He published books telling parents not to spoil their children with displays of affection. He carried this advice into his personal life, raising his children according to his theories. He ended up an alcoholic and his two sons attempted suicide, one of them succeeded

Fact of what happen to children in NAZI concentration camp during the holocaust

During the Holocaust, children were especially vulnerable to death under the Nazi regime. According to estimations, 16.5  million children, nearly all Jewish, were murdered during the Holocaust, either directly or as a direct consequence of Nazi actions.

Warsaw Ghetto boy, perhaps the most iconic photograph representing children in the Holocaust

The Nazis advocated killing children of unwanted or "dangerous" people in accordance with their ideological views, either as part of the Nazi idea of the racial struggle or as a measure of preventive security. 

The Nazis particularly targeted Jewish children, but also targeted ethnically Polish children and Romani (also called Gypsy) children along with children with mental or physical defects (disabled children). The Nazis and their collaborators killed children both for these ideological reasons and in retaliation for real or alleged partisan attacks.

[1] Early killings were encouraged by the Nazis in Aktion T4, where children with disabilities were gassed using carbon monoxide, starved to death, given phenol injections to the heart, or hanged.

1,500,000 children, nearly all Jewish, were killed by the Nazis. A much smaller number were saved. Some simply survived, often in a ghetto, occasionally in a concentration camp. Some were saved in various programs like the Kindertransport and the One Thousand Children, in both of which children fled their home land. 

Other children were saved by becoming Hidden Children. During and even before the war many vulnerable children were rescued by Œuvre de Secours aux Enfants (OSE). 

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