Unfortunately, as many as 30% of children develop insecure attachment relationships with their parents. Toby and Hugo are two of them, they are both 18 months old and they were classified as the insecurely attached babies. Attachment theory research tells us that infants will likely experience one of three types of insecure attachment if they do not get responsive, nurturing, consistent care in the early weeks and months of their lives. The first type of insecure attachment is called Resistant/Ambivalent Attachment. The characteristic of this attachment is that babies will show exaggerated expressions of attachment needs. They are reluctant to explore new environment and preoccupied with getting the attention of their parents. When parents depart, babies become extremely distressed. When the parents return, they have difficulty settling down and do not respond well to their parent 's soothing. This occurs when parents are inconsistent - sometimes answering infant’s needs quickly and responsively, and sometimes just ignore them or respond them slowly. This may also occur if parents respond only to the physical needs, i.e. feeding, changing, etc., but ignore the infant 's need for human interaction and connection.
The second type of insecure attachment is called Avoidant Attachment. The characteristic of this attachment is that babies seem not to care whether their parent is present or absent. When their parent is present, babies will explore their environment without interest in their parent 's whereabouts. Also, when their parent departs, they are minimally distressed. At reunion, they do not move toward their parents or show their pleasure to see the parents again. In fact, they often ignore or avoid their parents. This occurs when parents are unresponsive to baby’s needs - both physical and emotional. This is called neglect, and happens often in families where there is alcoholism and/or drug addiction, or in families who do
References: Bowlby, John (1956) "The growth of independence in the young child." Royal Society of Health Journal, 76, 587-591. Bowlby, John (1988) A Secure Base: Parent-Child Attachment and Healthy Human Development. London: Routledge. Lieberman, Alicia (1993) The Emotional Life of the Toddler