Epistemological beliefs and thinking about everyday controversial issues

The authors investigated the relationship between individuals' beliefs about the nature of knowledge and the nature of learning (epistemological beliefs) and their thinking about everyday controversial issues. Adults (N = 174) ranging in age from 17 to 71 years old with a mean age of 38 completed the Schommer Epistemological Questionnaire (M. Schommer, 1990), which assessed their beliefs in the certainty and organization of knowledge and the speed and control of learning. After they had completed the questionnaire, they responded to a series of questions about two controversial issues that had been discussed in the local newspaper. Regression analyses indicated that the more the participants believed in complex and tentative knowledge, the more likely they were to take on multiple perspectives, be willing to modify their thinking, withhold ultimate decisions until all information was available, and acknowledge the complex, tentative nature of everyday issues. Epistemological beliefs that are heavily influenced by a higher level of education appear to relate to thinking beyond the classroom, and introducing controversial issues into the curriculum may reciprocally foster the development of epistemological beliefs.     

Thriving Among African‐American Adolescents: Religiosity,Religious Support,and Communalism

While research has identified some positive factors in the lives of African‐American adolescents, there is limited, yet growing, empirical research examining how positive factors foster thriving for these youth. Using a positive youth development framework, we examined naturally occurring factors that promote thriving among African‐American adolescents. This cross‐sectional study included 152 youth who were surveyed at five Black churches in a large Midwestern city. Using MPlus, the structural regression model results revealed support for a model that demonstrated religiosity, religious support, and communalism are significantly and directly related to thriving among African‐American adolescents. Implications for theory, research and practice are discussed. Moving from a deficit lens to a strengths‐based approach can facilitate understanding of developmental processes and provide a foundation for supporting and enhancing positive outcomes among African‐American adolescents.     

Gender Representation in Notable Children's Picture Books: 1995–1999

Although females comprise 51% of the population, they are represented in less than that amount in children's literature. Psychologists and leaders of liberation groups affirm that gender stereotyping in children's books has detrimental effects on children's perception of women's roles. Therefore, illustrated children's books that view women positively can be used to eliminate these stereotypes. Eighty-three Notable Books for Children from 1995 to 1999 were analyzed for gender of main character, illustrations, and title. This research updated LaDow's content analysis method and revealed that contrary to earlier studies, steps toward equity have advanced based on the increase in females represented as the main character (S. LaDow, 1979). Although female representation has greatly improved since the 70s, gender stereotypes are still prevalent in children's literature.     

The effect of alcohol and barbiturate on the frequency of atrial and ventricular premature beats during sleep

Integrative Psychological and Behavioral Science - Repeated EEG and ECG monitoring during sleep was carried out in two subjects with ischemic heart disease and one presumably healthy control. All...     

The evolution of asphyxial defense

From the time animals became dependent upon molecular oxygen as an integral part of their energy-producing processes, they have remained in the shadow of acute asphyxial threat—the blocking of respiratory exchange resulting in the intracellular triad of hypoxia, hypercapnia and acidosis. The most commonly occurring precipitant of acute asphyxia has always been the transfer between air and water environments. Over the last one hundred years studies on a wide range of living organisms, from single cells to complex multicellular organisms like mammals, have demonstrated the presence of well-defined metabolic and cardiovascular-respiratory mechanisms for protecting living things against acute asphyxia. Single-celled animals depend upon anaerobiosis and secondarily hypometabolism. In addition to these processes, animals with gills or lungs utilize “passive” protection such as increased oxygen storage and the “dynamic” cardiovascular adjustments of bradycardia and selective ischemia. These latter changes decrease overall oxygen consumption and hence utilize the oxygen stores in the most economical way to protect the cardiac and cerebral tissue, which are most sensitive to hypoxia and vital to continued survival of the organism. In this article an attempt is made to place these processes into an evolutionary context. As through a glass darkly we glimpse asphyxial defense running like a paleophysiological thread through hundreds of millions of years, being accentuated here and muted there, depending upon the particular needs of individual species.     

The discrimination of natural movement by budgerigars (Melopsittacus undulates) and pigeons (Columba livia)

Three experiments examined the ability of birds to discriminate between the actions of walking forwards and backwards as demonstrated by video clips of a human walking a dog. Experiment 1 revealed that budgerigars (Melopsittacus undulates) could discriminate between these actions when the demonstrators moved consistently from left to right. Test trials then revealed that the discrimination transferred, without additional training, to clips of the demonstrators moving from right to left. Experiment 2 replicated the findings from Experiment 1 except that the demonstrators walked as if on a treadmill in the center of the display screen. The results from the first 2 experiments were replicated with pigeons in Experiment 3. The results cannot be explained if it is assumed that animals rely on static cues, such as those derived from individual postures, in order to discriminate between the actions of another animal. Instead, this type of discrimination appears to be controlled by dynamic cues derived from changes in the posture of the demonstrators.     

Mechanism of the human diving response

The diving response in human beings is characterized by breath-holding, slowing of the heart rate (diving bradycardia), reduction of limb blood flow and a gradual rise in the mean arterial blood pressure. The bradycardia results from increased parasympathetic stimulus to the cardiac pacemaker. The reduction in limb blood flow is due to vasoconstriction resulting from increased activity of the sympathetic nerves supplying arteries in the arms and legs. Essentially the response is produced by the combination of water touching the face and either voluntary or involuntary (reflex) arrest of breathing. The nervous inputs and outputs for the response are coordinated in the brain stem by the respiratory, vasomotor and cardioinhibitory “centers.” The diving response in human beings can be modified by many factors but the most important are water temperature, oxygen tension in the arterial blood and emotional factors.     

Health Related Quality of Life and Social Support in Pediatric Patients with Pacemakers

Prior research evaluating health-related quality of life (HRQOL) among pediatric patients with internal cardiac devices has primarily focused on children with cardiac defibrillators, with scant attention devoted to pacemaker recipients. Social support has been conceptualized as a protective factor that partially accounts for differences in HRQOL. This study compares the HRQOL of children with pacemakers with that of healthy children, and examines associations between HRQOL and social support. Twenty-seven pediatric pacemaker recipients completed measures of HRQOL and social support. Their parents also completed measures of child HRQOL. High concordance was found for child and parent-proxy reports of child HRQOL. Children with pacemakers and their parents both reported relatively low child HRQOL when compared to published normative data for healthy children and parents of healthy children. Family and friends emerged as the sources of support positively associated with the greatest number of HRQOL domains. In conclusion, these findings suggest that pediatric pacemaker recipients experience lower levels of HRQOL compared to healthy peers, and that social support from those closest to the child is associated with their perceived HRQOL.     

Predictors of response and drop-out during intensive dialectical behavior therapy

The purpose of this study was to examine the effectiveness, and predictors of response and drop-out during a four-week course of intensive dialectical behavior therapy (I-DBT) in 447 outpatients suffering from borderline personality disorder (BPD), over a 10-year period. Assessments included a diagnostic interview, the International Personality Disorder Examination Screening Questionnaire, the Beck Depression Inventory, and the Beck Hopelessness Scale. Among these participants, 103 started a second course of treatment. In agreement with previous reports, I-DBT was effective in reducing levels of depression and hopelessness with a trend of increasing effectiveness over the study period. High schizoid scores and low narcissistic score predicted poor response. Treatment completion rate was high, and low education predicted dropout. A discussion on the usefulness of a second course of treatment should be held with patients and staff as it was not effective in reducing depression and hopelessness.