A City Guide To Linfen for Alexander’s ulcer-prone personality, and while evidence for direct causality has proved limited, these developments in thinking certainly did set the groundwork for fascinating studies of physiological processes that may link personality type to disease see Chapter ‘s discussion of hostility and heart disease associations, for example. Until the s, psychosomatic research was predominantly psychoanalytical in nature, focusing on psychoanalytic interpretations of illness, such as asthma, ulcers or migraine being triggered by repressed emotions. However, one limitation to result from this work is that among those adhering to a biomedical viewpoint, illnesses with no identifiable organic cause were often considered as nervous disorders or psychosomatic conditions for which medical treatment was often not forthcoming. Illnesses with no physical evidence are known as psychogenic. P S Y C H O L O G Y Psychosomatic medicine today is more concerned with mixed psychological, social and biological/physiological explanations of illness, and illnesses addressed are often referred to as psychophysiological’ e.g. DSM-II with acceptance that psychological factors can affect any physical condition DSM-IIIR and DSM-IV. A City Guide To Linfen 2016.