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Biomedical subjects

R Bastien

Publications and source records attributed to R Bastien.

5 recordsLinked to original sources

A comparison of breast self-examination and clinical examination.

Twenty-six female college students were trained to examine their breasts using the Mammacare Method. After training, participants were asked to demonstrate their breast self-examination technique for a competency evaluation. On average, 85% of the components of the palpation technique were correctly included in the participants' self-examinations, indicating that they had been trained competently. Breast self-examiners then were asked to palpate three breast models in search of embedded lumps. Thirteen health professionals were asked to examine the same breast models for lumps. The examination of the models by self-examiners was compared to that by health professionals. Breast self-examiners took longer to examine each model, and on average correctly identified significantly more lumps than health professionals. The two groups did not differ in number of false-positive findings. These results indicate that women adequately trained to perform breast self-examination can perform breast examinations at least as accurately as health professionals.

Adolescent↗

An exploratory study on increases in masseteric muscle activity induced by caffeine.

In a crossover double blind experimental design, the nocturnal masseteric activity of 14 selected volunteers was evaluated by means of a portable electromyograph recording unit. The recordings lasted for a period of 16 days following ingestion of caffeine or placebo for five specific days each. There were no significant differences between caffeine or placebo on masseteric activity associated with bruxism. But when the two periods were compared, there was a tendency towards reduction of masseteric area activity and increase of stress levels in the second period of ingestion.

Adult↗

Parent and child causal attributions related to the child's clinical problem.

Parents and children were asked to give causal attributions related to the child's learning or behavior problems and an area of success. Actor-observer differences and tendencies of actors to make differential attributions for their positive and negative outcomes were examined. A significant number of parents and children were in disagreement regarding the cause of the child's problem. Parents made significantly more internal than external attributions for children's presenting problems. In contrast, children were evenly distributed in problem attributions. Both parents and children made significantly more internal success attributions. Research with clinical child populations is highlighted as a valuable way to validate, expand, and refine attribution theory while clarifying its practical applications.

Adolescent↗