ANN ARBOR—Jennifer Freyd, distinguished professor of psychology at the University of Oregon and author of “Betrayal Trauma: The Logic of Forgetting Childhood Abuse,” will speak on “Power, Abuse and Memory: Cognitive Science and Betrayal Trauma Theory,” at 4 p.m., Sept. 22 in 4448 East Hall at the University of Michigan.

At noon on Sept. 23, she will answer questions and discuss her theories at an informal brown-bag lunch at the Institute for Research on Women and Gender, 460 West Hall. Betrayal trauma theory addresses the question of why memories of abuse are often repressed in cases where the violation is committed by someone known to the victim, especially in cases of childhood abuse.

A cognitive psychologist, Freyd is this fall’s visiting scholar for the U-M’s Interdisciplinary Program in Feminist Practice. Her lecture is part of the University’s theme semester, “Genders, Bodies, Borders.” The public is invited to both events.

For more information, call Jane Hassinger or Rosie Bellovin, 647-0778, or send e-mail to jahass@umich.edu or bellovin@umich.edu.