• Impaired brain development. Child abuse and neglect have been shown, in some cases, to cause important regions of the brain to fail to form properly, resulting in impaired physical, mental, and emotional development (Perry, 2002; Shore, 1997). In other cases, the stress of chronic abuse causes a "hyperarousal" response by certain areas of the brain, which may result in hyperactivity, sleep disturbances, and anxiety, as well as increased vulnerability to post-traumatic stress disorder, attention deficit/hyperactivity disorder, conduct disorder, and learning and memory difficulties (Perry, 2001; Dallam, 2001).

• Poor physical health. A study of 700 children who had been in foster care for 1 year found more than one-quarter of the children had some kind of recurring physical or mental health problem (National Survey of Child and Adolescent Well-Being). A study of 9,500 HMO participants showed a relationship between various forms of household dysfunction (including childhood abuse) and long-term health problems such as sexually transmitted diseases, heart disease, cancer, chronic lung disease, skeletal fractures, and liver disease (Hillis, Anda, Felitti, Nordenberg, & Marchbanks, 2000; Felitti, Anda, Nordenberg, Williamson, Spitz, Edwards, Koss, & Marks, 1998).

Psychological after effects:

The immediate emotional effects of abuse and neglect—isolation, fear, and an inability to trust—can translate into lifelong consequences including low self-esteem, depression, and relationship difficulties. Researchers have identified links between child abuse and neglect and the following:

• Poor mental and emotional health. In one long-term study, 80 percent of young adults who had been abused met the diagnostic criteria for at least one psychiatric disorder at age 21. These young adults exhibited many problems, including depression, anxiety, eating disorders, and suicide attempts (Silverman, Reinherz, & Giaconia, 1996). Other psychological and emotional conditions associated with abuse and neglect include: panic disorder, dissociative disorders, attention-deficit/hyperactivity disorder, post-traumatic stress disorder, and reactive attachment disorder (Teicher, 2000).

• Cognitive difficulties. The National Survey of Child and Adolescent Well-Being recently found children placed in out-of-home care due to abuse or neglect tended to score lower than the general population on measures of cognitive capacity, language development, and academic achievement (2003).

• Social difficulties. Children who are abused and neglected by caretakers often do not form secure attachments to them. These early attachment difficulties can lead to later difficulties in relationships with other adults as well as with peers (Morrison, Frank, Holland, & Kates, 1999).

Behavioral after effects:

Not all victims of child abuse and neglect will experience behavioral consequences; however, child abuse and neglect appear to make the following more likely: