American psychologist Grover Boydston, and has since spread through the Americas. Also in 1964, Polish psychiatrist Kazimierz Dąbrowski released his book Positive Disintegration. The book argues that developing and resolving "psychoneurosis" is a necessary part of healthy personality development. In 1966, psychologists began to observe large numbers of children of Holocaust survivors seeking mental help in clinics in Canada. The grandchildren of Holocaust survivors were overrepresented by 300% among the referrals to psychiatry clinics in comparison with their representation in the general population. Further study lead to the better understanding of transgenerational trauma. After Freudian thinking became less important in psychology, the term "neurosis" came to be used as a near synonym for "anxiety". The second edition of the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM-II) in 1968 described neuroses thusly: Anxiety is the chief characteristic of the neuroses. It may be felt and expressed directly, or it may be controlled unconsciously and automatically by conversion [into physical symptoms], displacement [into mental symptoms] and various other psychological mechanisms. Generally, these mechanisms produce symptoms experienced as subjective distress from which the patient desires relief. The neuroses, as contrasted to the psychoses, manifest neither gross distortion or misinterpretation of external reality, nor gross personality disorganization...In January 1980, the South African-British psychologist Stanley Rachman published a well-cited working definition of "emotional processing", aiming to define the "certain psychological experiences" Freud had mentioned in his 1923 book (and had earlier referred to). The DSM eliminated it's neurosis category in 1980 with the release of the DSM-III, because of a decision by its editors to provide descriptions of behavior rather than descriptions of hidden psychological mechanisms. This change was controversial. The various anxiety-related conditions previously considered neuroses are now classified differently. The Phobia Society of America was founded by psychotherapist Jerilyn Ross and others in 1980. It would later expand it's scope to cover all anxiety disorders and depression, which was reflected in it becoming known as the Anxiety and Depression Association of America. Acceptance and commitment therapy (ACT) was started by American psychologist Steven C. Hayes in around 1982. The core conception of ACT is that psychological suffering is usually caused by experiential avoidance, cognitive entanglement, and resulting psychological rigidity that leads to a failure to take needed behavioral steps in accord with core values. In 1986, "emotional proccessing theory" was first presented by psychologists Edna Foa (Israeli-American) and Michael