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Two studies examined the effect of parental divorce on feelings of discomfort and cardiac activity in response to public displays of affection (PDAs). In the first study, females from divorced homes reported marginally significant higher discomfort in response to PDAs than females from intact homes. In the second study, 32 female participants (16from divorced homes and 16from intact homes) viewed a PDA video and a control video and subsequently were asked to complete the same measure of discomfort as in Study 1. Interbeat intervals (IBIs) were recorded, and mean IBI and respiratory sinus arrhythmia (RSA) were derived. IBI and RSA increased in both groups in response to the videos over baseline. No differences were found between the divorce and intact groups for responses to the PDA video. However, the divorce group had higher heart rates and lower RSA overall, which suggests a potential mechanism for the association between divorce and negative physical health outcomes in women. Future studies should examine mediators of the relationship between divorce and reactions to PDA, such as marital conflict and parenting quality. KEYWORDS divorce, heart rate, interbeat interval, public display of affection, respiratory sinus arrhythmia DOI: 10.1080/10502551003597881

Motion sickness is believed to be caused by conflicting sensory signals, a situation that mimics the effects of ingesting certain toxins. Thus, one might suspect that individuals who have experienced a relatively high frequency of motion sickness may be particularly vigilant about avoiding anything that produces nausea, including potentially nauseating toxins. Consequently, they may be more resistant to trying new foods, i.e., be more food neophobic, since unfamiliar foods can have unexpected adverse effects due to toxins or allergens. Likewise, many highly stimulating experiences can trigger motion sickness, so individuals who are more susceptible may be more prone to avoid such experiences, i.e., be less sensation seeking. Finally, it was expected that food neophobia would be more frequent in individuals low on sensation seeking tendencies. Self-reported motion sickness history in 308 adults (M = 18.8 yr.; SD = 1.6) was correlated with scores on the Arnett Inventory of Sensation Seeking and the Food Neophobia Scale. As predicted, greater history of motion sickness was associated with lower Sensation Seeking scores. Food Neophobia was not correlated with motion sickness history but, as expected, was negatively correlated (r = -.42) with scores on Sensation Seeking. Further research is recommended that measures actual sensitivity to motion sickness.

The authors' purpose in the current study was to apply P. J. Lang's (1968, 1971, 1985) theory of multiple systems of emotional response to the study of subjective sleepiness. A total of 274 participants completed the Stanford Sleepiness Scale (SSS), the Profile of Mood States (POMS), three sleepiness-related Visual Analogue Scales (VAS), and the Epworth Sleepiness Scale (ESS). The authors completed correlations and factor analysis of the 4 sleepiness measures. The SSS, POMS, and VAS measures were better correlated with each other than with the ESS. Similarly, the SSS, POMS, and VAS measures loaded highly onto one factor, whereas the ESS loaded highly onto a separate factor. These results indicated that the ESS measured a different aspect of subjective sleepiness than the SSS, POMS, or VAS. According to Lang's emotional responses theory, the ESS assessed a behavioral component of sleepiness, and the SSS, POMS, and VAS measures assessed an internal state related to sleepiness. Index Terms: behavioral sleepiness, emotional response, sleepiness, subjective measures, Measures of sleepiness have become increasingly important in recent years to sleep clinicians and researchers as predictors of potential health hazards in our modern society. (1-3) Although numerous measures of [...]

In the early part of the 20th century, numerous studies of human basal metabolism were conducted at the Nutrition Laboratory of the Carnegie Institution of Washington in Boston, Mass, under the direction of Francis G. Benedict. Prediction equations for basal energy expenditure (BEE) were developed from these studies. The expressed purpose of these equations was to establish normal standards to serve as a benchmark for comparison with BEE of persons with various disease states such as diabetes, thyroid, and other febrile diseases. The Harris-Benedict equations remain the most common method for calculating BEE for clinical and research purposes. The widespread use of the equations and the relative inaccessibility of the original work highlights the importance of reviewing the data from which the standards were developed. A review of the data reveals that the methods and conclusions of Harris and Benedict appear valid and reasonable, albeit not error free. All of the variables used in the equations have sound physiologic basis for use in predicting BEE. Supplemental data from the Nutrition Laboratory indicates that the original equations can be applied over a wide range of age and body types. The commonly held assumption that the Harris-Benedict equations overestimate BEE in obese persons may not be true for persons who are moderately obese., In 1919, the Carnegie Institution of Washington published A Biometric Study of Basal Metabolism in Man, by J. Arthur Harris and Francis G. Benedict (1). In this monograph, Harris and [...]