Kinetics of hula hooping: an inverse dynamics analysis

This paper involved a biomechanical analysis of lower limb joint coordination during hula hooping. A lower extremity inverse dynamics model that incorporated kinematic input and force platform data was developed to compute the angular velocities, moments about and powers produced at the lower extremity joints. The abductor moments and powers were discovered to be paramount in maintaining hoop oscillations, as demonstrated consistently in the three study participants. However, hula hooping was demonstrated to be variable in terms of the involvement of flexor and extensor moments and powers of the ankle, knee and hip joints, resulting in the adoption of varying strategies by each of the three participants.     

Categorical speech perception deficits distinguish language and reading impairments in children

We examined categorical speech perception in school‐age children with developmental dyslexia or Specific Language Impairment (SLI), compared to age‐matched and younger controls. Stimuli consisted of synthetic speech tokens in which place of articulation varied from ‘b’ to ‘d’. Children were tested on categorization, categorization in noise, and discrimination. Phonological awareness skills were also assessed to examine whether these correlated with speech perception measures. We observed similarly good baseline categorization rates across all groups; however, when noise was added, the SLI group showed impaired categorization relative to controls, whereas dyslexic children showed an intact profile. The SLI group showed poorer than expected between‐category discrimination rates, whereas this pattern was only marginal in the dyslexic group. Impaired phonological awareness profiles were observed in both the SLI and dyslexic groups; however, correlations between phonological awareness and speech perception scores were not significant. The results of the study suggest that in children with language and reading impairments, there is a significant relationship between receptive language and speech perception, there is at best a weak relationship between reading and speech perception, and indeed the relationship between phonological and speech perception deficits is highly complex.     

Embodied infant attention

Does real time coupling between mental and physical activity early in development have functional significance? To address this question, we examined the habituation of visual attention and the subsequent response to change in two groups of 3‐month‐olds with different patterns of movement–attention coupling. In suppressors, the typical decrease in body movement at the onset of looks persists into the looks. In rebounders, the initial decrease is more transient and movement quickly returns above baseline. Suppressors and rebounders did not differ on measures of looking during habituation, but when the stimulus changed rebounders looked more than suppressors. When it did not change, they looked less. In addition, during habituation rebounders spent more time looking away from the stimulus. Rapid motor reactivation soon after gaze locks onto a target, characteristic of rebounders, may influence visual foraging and the response to change by keeping attention near a threshold of engagement.     

Counseling Clients with Chronic Pain: A Religiously Oriented Cognitive Behavior Framework

The experience of chronic pain is largely influenced by core schemas and cognitive processes, including those that are religious in nature. When these schemas are negative, they contribute to the exacerbation of pain and related problems. A framework is presented for the identification of problematic religious schemas and their modification through cognitive behavior strategies.     

Effects of Perceived Space on Spatial Attention

Abstract—This study demonstrates that a perceptual illusion that alters the perceived length of two lines also affects spatial attention. We used a cuing method that was introduced to study space- versus object-based attention. Two parallel lines of equal length were placed so that the distance between them was equal to the length of the lines. We then added a scene with depth cues to produce a strong illusion that one line was longer than the other. The results showed that spatial attention is distributed in space as it is perceived and altered by perceptual organization. These data have implications for assumptions concerning the spatial medium that guides attention and the role of depth and distance cues in spatial orienting, as well as for understanding attentional systems related to neuropsychological functions that respond to space and objects.     

A Survey of Management Selection Practices in Greece

The results of a study of managerial recruitment and selection methods in Greece are presented. Forty-eight organizations responded to the postal survey. Questionnaires addressed the frequency of use of different methods and attitudes towards their use. Greek firms tend to use intuitive and subjective methods, such as interviews, curriculum vitae and personal recommendations. Interviews are considered the most valid predictors of future job performance followed by written examinations and psychological tests, while application forms followed by references and personal recommendations are viewed as the least valid.     

What we may do with preembryos: a response to Richard A. McCormick.

If preembryos are not persons, as Professor Richard A. McCormick recently argued in an article in this journal, then a variety of actions with preembryos should be permitted to follow. These actions include discard, freezing, research, and preimplantation genetic analysis.     

Homeless women with children. The role of alcohol and other drug abuse.

For some women with children, alcohol and other drug use may be an important risk factor for homelessness because it may interfere with a woman's capacity to compete for scarce resources such as housing, employment, or services. The impact of various policy decisions on homeless women, their dependent children, and the family unit is considered, including women's right to privacy, criminalization of drug use, and scarcity of appropriate treatment programs for homeless women.