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Biomedical subjects

J M Stanton

Publications and source records attributed to J M Stanton.

7 recordsLinked to original sources

Self-concept differentiation across the adult life span.

This study used 2 measures to examine 158 adults' (80 men, 78 women; ages 20 to 88 years) self-concept differentiation (SCD) across 5 role-specific self-representations. Findings revealed that the 2 measures did not assess SCD in similar ways and that they showed different associations with age. Specifically, the 1st measure was not significantly related to age, whereas the 2nd measure showed a curvilinear, U-shaped association with age. The 2nd SCD index also showed significant associations with several measures of emotional adjustment and 6 dimensions of psychological well-being. Additional analyses showed that age moderated the associations between SCD and positive and negative psychological well-being. A high level of SCD was associated with lower positive and higher negative psychological well-being for both young and older adults. However, this effect was significantly more pronounced in older adults.

Adult↗

Ketamine anesthesia at high altitude.

There is a clinical need for a safe and effective anesthetic technique in high altitude and remote areas. This report presents a series of 11 consecutive cases documenting the use of ketamine anesthesia in a remote hospital at an altitude of 3,900 m, by primary-care physicians without specialist training in anesthesia. The method of administration is fully described. At a low dose of 2.0 mg/kg, ketamine produces a dissociative anesthesia that does not depress the hypoxic drive, or interfere with the pharyngeal or laryngeal reflexes. Although supplemental oxygen is useful in the recovery phase for less acclimatized individuals, it is usually not required as reductions in oxygen saturation can be raised by physical stimulation that encourages the patient to breathe faster and deeper. The common side effect of emergent nightmares was avoided using midazolam as premedication and a quiet recovery area. This study offers the first available evidence that ketamine with midazolam offers a safe and effective means of anaesthesia at very high altitude, without the need for specialist equipment or training, by careful clinicians experienced in basic airway management.

Acclimatization↗

Empirical distributions of correlations as a tool for scale reduction.

A Visual Basic program for generating a distribution of correlations as a tool for scale reduction is presented; the program is available free from the author and runs on IBM-compatible personal computers under the Windows 95/98/NT operating systems. The program generates a list of item combinations and correlations between the unit weighted sum of the items and a criterion score. The list can be used to locate item combinations that have high correlations with the original full-length test. An example application is presented to illustrate the use of the program. The compiled program and its source code can be downloaded from http:¿personal.bgsu.edu/stanton/r_crunch/r_crun ch.zip.

Microcomputers↗

The effect of moderate exercise on mood in mildly hypertensive volunteers: a randomized controlled trial.

This study reports an investigation of the effect of participating in moderate exercise (three 40-min sessions of brisk walking a week for 6 months) on mood state in 177 sedentary, mildly hypertensive volunteers. Mood was assessed by the Profile of Mood States, Bipolar Form (POMS-BI), and no significant differences were found between control and exercise groups. The intervention group increased its exercise output more than the control group, but there was also a significant increase in exercise done by the control group. We conclude that exercise has no major effect on mood in hypertensive volunteers.

Adult↗

Weight gain associated with neuroleptic medication: a review.

In this article we review the empirical literature on weight gain associated with neuroleptic drug use. Weight gain, which appears to be associated with an increase in appetite, is variable but likely to be larger initially and then plateau. Clozapine and low-potency phenothiazines are associated with the largest gains and molindone with weight loss, but the mechanism is not known. Amantadine and fenfluramine may reverse weight gain to some degree. Dietary fat seems to play an important role in obesity, and research is needed to increase the data base and elucidate possible mechanisms. Studies are also needed to evaluate preventive strategies and to determine which drugs are least likely to produce weight gain as well as which drugs could be added to a neuroleptic regimen to control weight.

Antipsychotic Agents↗