Medicine and Health Sciences Commons^™

Accuracy Of Self-Reported Sun Exposure And Sun Protection Behavior, Joel J. Hillhouse, Robert Turrisi, James Jaccard, June K. Robinson

ETSU Faculty Works

The objective of this study was to compare the accuracy of self-reported skin cancer risk outcome measures proposed as standards by prevention experts to aggregated estimates of behavior from weekly diaries. Weekly electronic diaries of ultraviolet radiation (UVR) behaviors, initially validated by comparison with daily electronic diaries, were used to assess the accuracy of commonly used end-of-summer self-reported measures among 250 adults. Results revealed low biases, and good correspondence between simple open-ended self-reported estimates of days outside, hours outside, sunbathing days and hours, and days outside when not protected by either sunscreen, long-sleeved shirts, hats, or shade. Rating scale measures …

Random Inter Stimulus Interval Increases Signal-To-Noise Ratio., Juliane Armstrong

Undergraduate Honors Theses

Incremental improvements are continuously being made to P300-Speller BCI paradigms. Accurate classification depends on a high signal-to-noise ratio (SNR) between the target and nontarget items. Fixed presentation rates produce a large flash-evoked response that persists throughout the recording epoch, which can potentially undermine the classification of P300-responses. By introducing a random interstimulus interval (ISI) to a previously improved P300-Speller paradigm (i.e., Checkerboard Paradigm; CBP) we expect to reduce the deleterious flash-evoked responses and increase the P300 classification SNR. Data were recorded from 32 EEG locations (right mastoid referenced) from 13 subjects using the CBP with two conditions. In the Random …

Perceived Health In Lung Cancer Patients: The Role Of Positive And Negative Affect, Jameson K. Hirsch, Andrea R. Floyd, Paul R. Duberstein

ETSU Faculty Works

Purpose: To examine the association of affective experience and health-related quality of life in lung cancer patients, we hypothesized that negative affect would be positively, and positive affect would be negatively, associated with perceived health.

Methods: A sample of 133 English-speaking lung cancer patients (33% female; mean age = 63.68 years old, SD = 9.37) completed a battery of self-report surveys.

Results: Results of our secondary analysis indicate that trait negative affect was significantly associated with poor physical and social functioning, greater role limitations due to emotional problems, greater bodily pain, and poor general health. Positive affect was significantly associated …