The Social Science Research Council's committee report on personality change in the middle years of the human life cycle and a bibliographic listing of papers relating to the middle years comprise this document. The committee's interest and activity focus on the chronological age period from 40 to 60 years and are directed toward information exchange, committee meetings with guest participation, and seminars. The intent of the committee is two-fold: first, to fill a gap in research on the human life cycle and, second, to respond to social patterns and policy issues that have emerged in the 1970s. Committee achievements include serving as an information center, defining the field of inquiry, contacting international scholars, and participating in international conferences. Topics of committee discussions and seminars include stress symptoms, midlife crisis, death and social time, interaction between work and personality, women in midlife, career analysis, life roles, life cycle, social support, and life cycle aspects of earnings. The bulk of the report is a 33-page listing of papers received by the committee on psychological, physical, occupational, medical, educational, and social aspects of the middle years. (Author/DB)