SUMMAR Y The study had two primary objectives. The first was to determine whether sleep loss results in a preference for tasks demanding minimal effort. The second was to evaluate the quality of performance when participants, under conditions of sleep loss, have control over task demands. In experiment 1, using a repeated-measures design, 50 undergraduate college students were evaluated, following one night of no sleep loss and one night of sleep loss. The Math Effort Task (MET) presented addition problems via computer. Participants were able to select additions at one of five levels of difficulty.Less-demanding problems were selected and more additions were solved correctly when the participants were subject to sleep loss. In experiment 2, 58 undergraduate college students were randomly assigned to a no sleep deprivation or a sleep deprivation condition. Sleep-deprived participants selected less-demanding problems on the MET. Percentage correct on the MET was equivalent for both the non-sleep-deprived and sleep-deprived groups. On a task selection question, the sleep-deprived participants also selected significantly less-demanding non-academic tasks. Increased sleepiness, fatigue, and reaction time were associated with the selection of less difficult tasks. Both groups of participants reported equivalent effort expenditures; sleep-deprived participants did not perceive a reduction in effort. These studies demonstrate that sleep loss results in the choice of low-effort behavior that helps maintain accurate responding.k e y w o r d s effort,

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This study explored how Latinas diagnosed with a breast abnormality suspicious for cancer define and use social support while undergoing diagnostic follow-up and/or awaiting a definitive diagnosis. Qualitative data was collected and analyzed from 15 telephone interviews with Spanish-speaking women diagnosed with a breast abnormality suspicious for cancer. Findings indicated that social support was perceived as the comfort, caring, and esteem a person receives from others. With respect to family support, half of the participants felt female family members (e.g., daughters, mothers) were more supportive than male family members (e.g., fathers, sons) when discussing their illness. Many participants felt that asking for help from family members, friends, and health professionals was acceptable under medical circumstances and less justifiable under non-medical circumstances. In conclusion, our findings suggest that Latinas diagnosed with a breast abnormality suspicious for breast cancer are more likely to seek support from family members, friends and health professional after a definitive diagnosis has been given. Additional research is needed to assess the impact of social support in increasing adherence to diagnostic follow-up procedures for a breast abnormality.

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