Otfried Spreen, Ph.D., is Professor Emeritus of Psychology at the University of Victoria, British Columbia. Esther Strauss, Ph.D., is Professor of Psychology at the University of Victoria, British Columbia.

Otfried Spreen, Ph.D., is Professor Emeritus of Psychology at the University of Victoria, British Columbia. Esther Strauss, Ph.D., is Professor of Psychology at the University of Victoria, British Columbia. Less