An economic model of scientific activity and truth acquisition

We wish to thank the following for helpful comments and discussion: Jim Cox, Hartry Field, David Hull, Mark Isaac, Isaac Levi, Vann McGee, Mike Phillips, Holly Smith, Meredith Williams, Michael Williams, and other audience members at Northwestern University and Western Washington University.     

Discourse functions of thematization and topicalization

Thematization, the relative frequency of a discourse referent, and topicalization are conceptualized as related discourse functions. In a probe recall experiment, a word with a thematized referent was a better recall probe than a word with a nonthematized referent. Also, an agent noun was a better prompt than a recipient, and this semantic variable interacted with topicalization such that a semantic recipient was a better prompt when it was topic than when it was comment. In a second experiment, subjects' choice between semantically equivalent active and passive sentences was influenced by thematization. Thematized nouns were chosen as topics more often than nonthematized nouns, and nouns used as paragraph titles were chosen as topics slightly more than nontitle nouns. It is suggested that twin discourse functions are served by thematization and topicalization, the former providing stable referential focus and the latter providing momentary referential focus.     

Sex-role identity as a moderator of the polarization effect in person perception

Male and female subjects with different sex-role identities (Androgynous, Masculine, Feminine, Undifferentiated) rated likability of male and female stimulus persons in the impression formation paradigm. Under certain conditions all the female subjects and feminine males manifested a polarization effect; that is, they made more polar ratings of opposite-sexed stimulus persons in contrast to same-sexed stimulus persons. On the other hand, under certain conditions Masculinetyped males rated male stimulus persons more negatively than female stimulus persons. Results were discussed in terms of moderating effects on the polarization phenomenon and possible explanatory mechanisms.     

Communication Differences Between Physicians and Their Patients in an Oncology Setting

The physician-patient relationship has critical importance in the quality of medical care, especially in the oncology setting. Of particular interest over the past two decades has been the communication between physicians and their patients. It is understood that communication is related to patient and physician satisfaction as well as other medical outcomes. However, despite this interest and attention, investigators have only recently begun to assess the communication between physicians and patients from the patient's point of view. Additionally, previous investigations have primarily relied upon retrospective reports of the interaction from patients or physicians. The current investigation assessed physician–patient communication in an oncology setting, both as it was occurring and following the interaction. The units of analysis included participant ratings as well as those of trained observers. Findings revealed that physicians and patients disagree as to the valence of the messages which transpired. Additionally, results suggest that it is the patients who distort the messages in the positive direction. Research and clinical implications of this disagreement and positivity bias are discussed.     

Perceived stress and physiological dysregulation in older adults

We use a population-based representative sample of older Taiwanese to investigate links between respondents' perceived levels of stress and a broad set of biological measures. These biomarkers were collected at a single time (2000) and reflect sympathetic nervous system (SNS)-activity, hypothalamo-pituitary-adrenal (HPA)-activity, immune function, cardiovascular function, and metabolic pathways. We model the relationship between perceived stress and (1) extreme values for each of 16 individual biological indicators; and (2) a measure of cumulative physiological dysregulation based on the full set of biomarkers. We consider two measures of perceived stress, one derived from the 2000 interview and the second based on data from three interviews (1996-2000). Age and sex-adjusted models reveal significant associations between measures of perceived stress and extreme values of cortisol, triglycerides, interleukin-6 (IL-6), dehydroepiandrosterone sulphate (DHEAS) and fasting glucose. Examined individually, numerous biomarkers, including those pertaining to blood pressure and obesity, are not significantly related to perceived stress. Jointly, however, the measure of cumulative physiological dysregulation is associated with both the level of perceived stress at a given time and to a longitudinal measure of perceived stress. Some results suggest that the relationship between level of perceived stress and physiological response is stronger for women than men.     

Counselling children and adults about AIDS/HIV: The ripple effect on haemophilia care settings

Haemophilia and HIV/AIDS are life-long, life-threatening conditions for which there is treatment but no cure. Both affect not only the patient but all members of the family. This paper focusses on how the counselling of those with AIDS/HIV has been affected by dilemmas such as treatment, infectious aspects, blood donation, sex, the media and having children. The impact of haemophilia and AIDS on the family and the ripple effect on health care staff is addressed.     

Experience-dependent neuropsychological recovery and the treatment of chronic alcoholism

This paper reviews the relationship between cognitive status and treatment outcome in chronic alcoholics, the natural history of recovery, and the role of cognitively oriented remediation programs in facilitating recovery. Seven studies of experience-dependent recovery are described in which behavioral improvement was noted. Various recommendations for treatment over the course of recovery are made, guided by anticipated changes in capacity to process complex information over time.