31. Mood Disorders: Mania and Depression
Presents vivid examples of the mood fluctuations of patients who suffer from periodic affective episodes.

32. Mood Disorders: Hereditary Factors
Illustrates the findings of a 10-year study that involved 12,000 volunteers in an Amish community and represents careful analysis of genetic factors related to manic-depressive disorders.

35. The Mind of the Psychopath
Presents the definition of and specific behaviors related to psychopathy, and the ongoing research on this subject.