Psychopathological features, life events, and psychiatric disorders associated with attempted suicide and self-inflicted injury are discussed in the section titled Suicide Prevention. Dr. Beautrais provides a comprehensive case-control study on risk factors for suicide attempts among young people in New Zealand. This work strongly suggests that suicide attempts "represent the culmination of adverse life course sequences which have been marked by accumulation of risk factors from the domains of social disadvantage, childhood adversity, personality factors, psychiatric disorders and adverse life events." This section continues with a chapter by Kerryn L. Brain on the psychophysiology of self-mutilative behavior, which shows that the reduction of psychophysiological arousal, rather than the emotional response, reinforces self-mutilative behavior. This study suggests that self-mutilative behavior is not significantly associated with the level of psychiatric symptoms the individual is experiencing. Lil Träskman-Bendz concludes the section with a comprehensive review article on the biological markers of suicidal behavior.