Infants with Type A attachment may avoid or ignore their mothers. These children feel secure enough to leave Mom's side and do some exploring. The infant is insecurely attached. These children are found clinging to their mothers, not wanting to leave her presence. Emotional and Personality Development Temperament Even as infants, we all had our own temperaments.
Some infants are very loud, while others are quiet.
Some are very happy, while others can be hard to please. Psychiatrists Alexander Chase and Stella Thomas have developed three classifications of temperament in children. Jim is the man who helped our class learn the basics of making web pages. Plus, he did an excellent job of portraying infant development in his granddaughter's page.