In the first place I have an enormous regard for common sense. Any time we discover some great thing and it contradicts common sense, we better go ba… - Harry Harlow

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In the first place I have an enormous regard for common sense. Any time we discover some great thing and it contradicts common sense, we better go back to the laboratory and check it.

English
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About Harry Harlow

Harry Frederick Harlow (October 31, 1905 – December 6, 1981) was an American psychologist best known for his maternal-separation, dependency needs, and social isolation experiments on rhesus monkeys, which manifested the importance of caregiving and companionship in social and cognitive development.

Also Known As

Birth Name: Harry Frederick Harlow
Alternative Names: Harry F. Harlow H. F. Harlow

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The effects of 6 months of total social isolation were so devastating and debilitating that we had assumed initially that 12 months of isolation would not produce any additional decrement. This assumption proved to be false; 12 months of isolation almost obliterated the animals socially.

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