Comparative Analysis of Suicide,Accidental, and Undetermined Cause of Death Classification

Suicide determination is not standardized across medical examiners, and many suspected suicides are later classified as accidental or undetermined. The present study investigated patterns between these three groups using a medical examiner database and 633 structured interviews with next of kin. There were similarities across all three classification groups, including rates of mental illness and psychiatric symptoms. Those classified suicide were more likely to be male, to have died in a violent fashion, and have a stronger family history of suicide. Chronic pain was very common across all three groups, but significantly higher in the accidental and undetermined groups.     

Neural coding of formant-exaggerated speech in the infant brain

Speech scientists have long proposed that formant exaggeration in infant-directed speech plays an important role in language acquisition. This event-related potential (ERP) study investigated neural coding of formant-exaggerated speech in 6-12-month-old infants. Two synthetic /i/ vowels were presented in alternating blocks to test the effects of formant exaggeration. ERP waveform analysis showed significantly enhanced N250 for formant exaggeration, which was more prominent in the right hemisphere than the left. Time-frequency analysis indicated increased neural synchronization for processing formant-exaggerated speech in the delta band at frontal-central-parietal electrode sites as well as in the theta band at frontal-central sites. Minimum norm estimates further revealed a bilateral temporal-parietal-frontal neural network in the infant brain sensitive to formant exaggeration. Collectively, these results provide the first evidence that formant expansion in infant-directed speech enhances neural activities for phonetic encoding and language learning.     

Fighting,nonagonistic social behavior,and exploration in isolation‐reared rats

Sixty hooded Long‐Evans rats were assigned to one of three conditions: isolation‐rearing (from 14–30 days of age), brief isolation (from 28–30 days of age), and normal (no isolation). From day 14 to day 21, the isolation‐reared animals were maintained in an incubator set at 35°C to prevent hypothermia and were separated from each other by Plexiglas. They learned to nourish themselves by lapping milk that continuously flowed down one side of the enclosure. Thereafter, they were housed in standard hanging wire cages. Unlike previous studies of isolation at this age, there were no significant weight differences between the isolation‐reared group and the two control groups. At 30 days of age, the three groups were compared on fighting (serious and play), nonagonistic social behaviors (following and crawling under), and exploratory behavior (open‐field ambulation). The isolation‐reared group was significantly different from the normal group on all measures (isolates were higher on all measures except exploration). The isolation‐reared animals showed significantly more serious fighting (aggression) than the brief isolation animals, whereas these two groups did not differ on other behaviors. This methodology allows for the study of isolation‐rearing without the nutritional confounds found in previous research and shows an effect on aggression that is not accounted for by recent isolation. Aggr. Behav. 25:211–223, 1999. © 1999 Wiley‐Liss, Inc.     

Intrinsic Motivation and Subjective Well-Being: The Unique Contribution of Intrinsic Religious Motivation

The purpose of this study was to determine if the frequently reported positive association between Intrinsic Religious Motivation (IRM) and Subjective Well-being (SWB) is explicable in terms of a more general intrinsic orientation to life that involves secular as well as religious domains. Measures of 3 distinct domains of intrinsic orientation (work, leisure, and religion) were administered to 161 college students along with 4 measures of SWB: satisfaction with life, purpose in life, self-efficacy, and negative affect. Four multiple regressions were performed, 1 to predict each measure of SWB, with the 3 intrinsic orientation scales, gender, and social desirability as the predictors in each regression. Intrinsic religiousness emerged as an independent predictor of satisfaction with life, purpose in life, and self-efficacy. Intrinsic religiousness appears to make a unique contribution to the prediction of SWB.     

Implementation trial of a cognitive behavioural therapy programme for reducing student stress in the final year of secondary school

The final year of secondary school has been shown to be associated with heightened student stress. Psychological interventions have been shown to be effective in reducing and preventing distress in students during this school period, although the widespread adoption of these interventions into school settings is limited. There have been recent calls for research to examine the implementation success of evidence-based programmes when used by schools in school settings. The present study aimed to evaluate the implementation success of an evidence-based cognitive-behavioural therapy programme (Study without Stress) using the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework. At one Australian high school, all tutor group teachers were trained by the school counsellor to deliver the programme in standard school classes to students in the lead up to their final year of secondary school. Students (n = 80) and teachers (n = 11) reported on programme success against the RE-AIM framework at pre-intervention, post-intervention, and three-month follow-up. The findings indicated that SWOS was implemented successfully by the school. SWOS was associated with maintaining student stress levels at normal levels over time, as well as reducing the severity of stress for initially highly distressed students. The findings provide evidence from implementation science that SWOS can be adapted and delivered effectively by school staff to manage stress in final year secondary school students.     

Quality of Life of Individuals with Acquired Brain Injuries

This study investigated the quality of life of individuals with acquired brain injuries (ABI) across a one- to fifteen-year post-injury time span. This allows us to identify the health and service needs of individuals with ABI and provide direction for further improvement. Twenty-nine individuals were invited from the local Self-Help Group for the Brain-Damaged to participate in this study. Four instruments were used to help in the investigation of the subjective components of the quality of life, including the Personal Wellbeing Index (PWI) and Positive and Negative Affect Scales (PANAS). The instruments used were the Modified Barthel Index (MBI) and Lawton Instrumental Activity of Daily Living (IADL) Scale. After analysis of the results and their interpretation, there was no significant difference between the post-injury groups in their scores of negative affect. It is suggested that there should be services, such as psychotherapy, to help reduce the existence of negative moods. Improvement in the IADL aspect should be more focused in future rehabilitation services to allow people to enjoy a fuller life.     

THE NECESSITY OF TOMORROW'S SEA BATTLE

In chapter 9 of De Interpretatione, Aristotle offers a defense of free will against the threat of fatalism. According to the traditional interpretation, Aristotle concedes the validity of the fatalist's arguments and then proceeds to reject the Principle of Bivalence in order to avoid the fatalist's conclusion. Assuming that the traditional interpretation is right on this point, it remains to be seen why Aristotle felt compelled to reject such an intuitive semantic principle rather than challenge the fatalist's inference from truth to necessity. The answer, I contend, lies in Aristotle's theory of truth and truthmakers.