Two studies examined preschoolers' appreciation of how mental states arise. Findings suggest that 3- and 5-year-olds better understood perception-generated beliefs and attitude-generated desires than physiology-generated desires. Four- and 5-year-olds better understood the effects of quantity of experience than of time of experience on…

Describes a question writing contest in which students were asked to write and submit multiple choice questions of the assertion-reason type (type E) in physiology. (Author/CCM)

This case study examined a weight-trained (WT) male who had an unusually high heart rate response to heavy resistance exercise and self-administered anabolic androgenic steroids as an ergogenic aid to training. The subject was compared to 18 other WT people. His tachycardia response occurred only in the presence of a pressure load and not with a…

Uses the story of Dawn Langley Simmons, who may have been misidentified as male at birth, to illustrate the developmental basis of human sexual dimorphism and how gender misidentification may occur. Considers the emotional, legal, and societal implications of gender misassignment and reassignment. (Author/ASK)

This study examined developmental effects in auditory perception of word-final /s/ in inflectional morpheme contexts as a function of high-frequency (HF) bandwidth with normal hearing 5-, 7-, 10-year-olds and adults. The higher detection thresholds and larger clarity rating variances for the youngest participants support the use of extended…

This study describes the measurement of 2 cognitive functions, working-memory capacity and sequence learning, in 2 groups of listeners: young adults with normal hearing and elderly adults with impaired hearing. The measurement of these 2 cognitive abilities with a unique, nonverbal technique capable of auditory, visual, and auditory-visual…

The relation among children's evening activities, behavioral characteristics, and activity of the hypothalamic-pituitary-adrenocortical axis was assessed in normally developing children ages 7 to 10 years. Salivary cortisol at bedtime was compared on evenings when children had structured activities outside of the home with unstructured evenings at…

Laboratory exercises are intended to illustrate concepts and add an active learning component to courses. Since the 1980s, there has been a decline in animal laboratories offered in conjunction with medical physiology courses. The most important single reason for this is cost, but other contributing factors include the development of computer…

Sickle cell disease was first reported in 1910 by J. Herrick, and since then, various associated conditions and complications have been described. Sickle cell disease is a hereditary disorder characterized by abnormality of the hemoglobin in the red blood cell. During periods of decreased oxygen tension in the red blood cell's environment, the…

The purpose of this paper is to review the biomechanics and exercise physiology studies published in the Research Quarterly for Exercise and Sport (RQES) over the past 75 years. Studies in biomechanics, a relatively new subdiscipline that evolved from kinesiology, first appeared in the journal about 40 years ago. Exercise physiology studies have…

Pediatric abdominal pain can be a difficult condition to accurately assess for the nurse to determine whether the child's need is for teaching, treating, or transferring. This article describes the process as well as practical tips to be used by the nurse in the school setting. Distinguishing characteristics and findings, including key physical…

Leukoencephalopathy with vanishing white matter (VWM) is an autosomal recessive brain disorder, most often with a childhood onset. Magnetic resonance imaging and spectroscopy indicate that, with time, increasing amounts of cerebral white matter vanish and are replaced by fluid. Autopsy confirms white matter rarefaction and cystic degeneration. The…

The mechanism by which air enters the mammalian lung is difficult for many students of physiology. In particular, some students have trouble seeing how pressure can be transmitted through a fluid such as the intrapleural fluid and how the magnitude of that pressure can change. A Cartesian diver, an old-time child's toy, may be used as a visual aid…

In 1965, McCay Vernon drove a stake through the heart of the long-established "truth" that deaf people were inferior to hearing people. Launched by Aristotle, emboldened by the 1880 Conference of Milan, and reiterated in the twentieth century through the biased research of many psychologists, this falsehood persisted until the publication of this…

The Australian childcare profession has watched with some concern results of research coming out of North America indicating that child care is not good for children. This research identifies undesirable outcomes in children's development and behaviour as a result of childcare attendance. How does this research apply to Australian children in…