Internal working model of attachment
Internal working model of attachment is a psychological approach that attempts to describe the development of mental representations, specifically the worthiness of the self and expectations of others' reactions to the self. This model is a result of interactions with primary caregivers which become internalized, and is therefore an automatic process. John Bowlby implemented this model in his attachment theory in order to explain how infants act in accordance with these mental representations. It is an important aspect of general attachment theory.
Positive mental attitude
Positive mental attitude (PMA) is a concept first introduced in 1937 by Napoleon Hill in the book "Think and Grow Rich". The book never actually uses the term, but discusses about the importance of positive thinking as a contributing factor of success. Napoleon, along with W. Clement Stone, founder of Combined Insurance, later wrote "Success Through a Positive Mental Attitude," defines positive mental attitude as comprising the 'plus' characteristics represented by words as faith, integrity, hope, optimism, courage, initiative, generosity, tolerance, tact, kindliness and good common sense.