Developing physiologic stress profiles for school-age children who stutter

Purpose

Physiologic reactivity profiles were generated for 9 school-age children with a history of stuttering. Utilizing salivary sampling, stress biomarkers cortisol and alpha-amylase were measured in response to normal daily stressors. Children with a history of stuttering were characterized as high or low autonomic reactors when compared to age-normed references established for cortisol and alpha-amylase levels.

Method

Salivary samples were collected four times daily over three consecutive days from children (6 boys and 3 girls) aged 6–11 years. Samples were measured for two important stress biomarkers, cortisol and alpha-amylase. Following laboratory training on appropriate sampling technique using the Salivette, families collected all samples in their homes.

Results

Compared to published references established for normal children, children with a history of stuttering exhibited mean cortisol and alpha-amylase levels that were significantly lower, though within normal limits.

Conclusions

Results reflect an initial investigation into the use of salivary sampling to measure reactivity in children who stutter. As children who stutter have historically been excluded from physiologic stress studies, salivary sampling appears to provide an innovative and minimally invasive option for investigators. Though interpreted with caution secondary to the small sample size, initial findings suggest that in response to normal daily stressors, school-age children with a history of stuttering do not exhibit significantly elevated stress biomarkers.Educational objectives: The reader will be able to: (1) identify two biomarkers that reflect activation of the body's stress response; (2) discuss possible implications the generation of individualized stress profiles may have on the treatment of stuttering; and (3) discuss and evaluate the research needs associated with the inclusion of children in physiological studies of fluency.     

Evidence of automatic processing in sequence learning using process-dissociation

This paper proposes a way to apply process-dissociation to sequence learning in addition and extension to the approach used by Destrebecqz and Cleeremans (2001). Participants were trained on two sequences separated from each other by a short break. Following training, participants self-reported their knowledge of the sequences. A recognition test was then performed which required discrimination of two trained sequences, either under the instructions to call any sequence encountered in the experiment "old" (the inclusion condition), or only sequence fragments from one half of the experiment "old" (the exclusion condition). The recognition test elicited automatic and controlled process estimates using the process dissociation procedure, and suggested both processes were involved. Examining the underlying processes supporting performance may provide more information on the fundamental aspects of the implicit and explicit constructs than has been attainable through awareness testing.     

The Effects of Mediation Content and Form on Children's Responses to Violent Television

This research explores the role of mediation content and its grammatical structure in children's responses to a violent television program. An experiment was conducted with 103 children ranging in age from 5‐ to 12‐years‐old. Mediation strategies that emphasized the program as either factually inaccurate or socially unrealistic were developed. This information was communicated to children either directly (in statement form) or by asking children to consider the program's reality status. The results revealed that the utility of various approaches to mediation depend on the age and viewing history of the child.