Categorical perception of nonspeech sounds by 2-month-old infants

According to recent investigations, adult listeners perceive rise-time differences in both speech and nonspeech stimuli in a categorical manner (Cutting & Rosner, 1974). Adults labeled sawtooth-wave stimuli as either plucked or bowed. The present study uses the high-amplitude sucking technique to explore the 2-month-old infant’s perception of rise-time differences for sawtooth stimuli. Infants discriminated rise-time differences which marked off the different nonspeech categories, but did not discriminate equal differences within either category. Thus, the present study shows that infants, like adults, can perceive nonspeech stimuli in a categorical manner.     

The evolutionary psychology of small‐scale versus large‐scale politics: Ancestral conditions did not include large‐scale politics

The current research question sought to examine political psychology as it relates to evolutionary mismatch. The basic hypothesis is that people will be more cognitively prepared to think about political situations that are relatively small in scale compared with political situations that are large in scale. This research also examined the effects of whether the political situation is highly relevant to oneself. To test these questions, 49 young adults were presented with four sets of instructions. They were asked to write paragraphs describing (i) a large‐scale, self‐relevant political situation, (ii) a large‐scale non‐self‐relevant political situation, (iii) a small‐scale self‐relevant political situation, and (iv) a small‐scale non‐self‐relevant political situation. Paragraphs generated by the participants were analyzed using Tyler's ( 2013 ) Writing Sample Readability Analyzer. Results demonstrated that paragraphs designed for large‐scale political situations had more sentences and were less readable than paragraphs designed for small‐scale situations—while paragraphs designed for small‐scale political situations were relatively readable and included more words per sentence, suggesting that, consistent with the core hypothesis, participants had an easier time processing information related to small‐scale political situations than large‐scale political situations. Implications for the nature of modern politics are discussed.     

The Utilization and Choices of Aneuploidy Screening in a Midwestern Population

The types, interpretation, and use of first- and second-trimester aneuploidy screening are often unclear for many women. This impairs appropriate decision making and understanding of the implications of prenatal genetic testing options. The purpose of this study was to examine the utilization of Stepwise Sequential screening in our Midwestern population, demographic factors associated with choice of screening and method of risk reporting and it’s potential impact on women’s choices. First trimester screening was performed for 2,634 women during the study period. Results were not reported or “framed” as “positive” or “negative”. Rather, the specific age-risk and screen-risk for T21 were relayed, along with options for follow-up Stepwise Sequential screening and invasive testing. Nearly 80 % of women declined Stepwise Sequential screening. Minorities and women of lower education were least likely to pursue further screening. Less than 4 % of the study population elected invasive testing. First trimester screening was associated with a 53 % reduction in amniocenteses and 20 % fewer CVS’s compared to pre-first trimester screening availability. Reporting age-and screen-risks for T21, rather than classifying results as “positive” or “negative” based on a pre-determined threshold, was associated with a low uptake of further testing.     

Pregnancy reduction in Jewish law

10% of infertile women who become pregnant with the aid of hormonal stimulation become pregnant with multiple fetuses. 20% of mothers of triplets experience preeclampsia and 35% risk serious postpartum hemorrhage. Risk increases with the number of fetuses for venous stasis, varicose veins, phlebothrombosis, thrombophlebitis, and embolic phenomena. Risk increases proportionally with increased number of fetuses for fetal morbidity and mortality. Selective abortion is often used as a method of reducing risk to both the woman and the fetuses, thus increasing the chance that 1 or 2 fetuses will be born healthy. A related issue is the selective reduction of fetuses in multiple pregnancies that may have a genetic defect like Hurler's syndrome, microcephaly, Tay-Sachs disease, spina bifida, hemophilia A, or thalassemia major. In cases where 1 fetus in a set of twins is so inclined, the reduction of the defective fetus increased the success of the remaining co-twin. Selective reduction should not pose a problem for Jewish women since the procedure does not violate any Jewish legal or moral rules. In Jewish law an unborn fetus is not considered a person until it is born. Until the 40th day of pregnancy it is considered as 'mere fluid.' In order to stress the positive aspect of selective reduction it should be called "enhanced survival of multifetal pregnancies."     

An online study combining the constructs from the theory of planned behaviour and protection motivation theory in predicting intention to test for chlamydia in two testing contexts

Chlamydia is a common sexually transmitted infection that has potentially serious consequences unless detected and treated early. The health service in the UK offers clinic-based testing for chlamydia but uptake is low. Identifying the predictors of testing behaviours may inform interventions to increase uptake. Self-tests for chlamydia may facilitate testing and treatment in people who avoid clinic-based testing. Self-testing and being tested by a health care professional (HCP) involve two contrasting contexts that may influence testing behaviour. However, little is known about how predictors of behaviour differ as a function of context. In this study, theoretical models of behaviour were used to assess factors that may predict intention to test in two different contexts: self-testing and being tested by a HCP. Individuals searching for or reading about chlamydia testing online were recruited using Google Adwords. Participants completed an online questionnaire that addressed previous testing behaviour and measured constructs of the Theory of Planned Behaviour and Protection Motivation Theory, which propose a total of eight possible predictors of intention. The questionnaire was completed by 310 participants. Sufficient data for multiple regression were provided by 102 and 118 respondents for self-testing and testing by a HCP respectively. Intention to self-test was predicted by vulnerability and self-efficacy, with a trend-level effect for response efficacy. Intention to be tested by a HCP was predicted by vulnerability, attitude and subjective norm. Thus, intentions to carry out two testing behaviours with very similar goals can have different predictors depending on test context. We conclude that interventions to increase self-testing should be based on evidence specifically related to test context.     

Facilitatory spatial interaction with percutaneous electrical stimuli

To measure the effect of a rectangular percutaneous conditioning shock to one finger on subjective magnitude of a suprathreshold test shock to an adjacent finger, Ss equated a contralateral matching stimulus to the test shock. The conditioning shock generally increased the apparent intensity of the test shock. This facilitation was a negatively accelerated function of test-shock current. Larger conditioning stimuli produced greater facilitation. Over limited intervals, time between conditioning and test or test and matching stimuli had no systematic effects.     

A breakdown in the family unit

In his article, "Autonomy and beneficence in the family," David J. Doukas describes the dynamic relationship between the family and the physician. He points out: "the family covenant spells out the obligations of all parties to give and receive respect and beneficial care within the realm of medical practice"....While this model may provide a framework for ethical discussion under certain circumstances, it falls short in several major respects....