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Full-Text Articles in Psychology

Lost Sleep And Cyberloafing: Evidence From The Laboratory And A Daylight Saving Time Quasi-Experiment, David T. Wagner, Christopher M. Barnes, Vivien K. G. Lim, D. Lance Ferris Sep 2012

Lost Sleep And Cyberloafing: Evidence From The Laboratory And A Daylight Saving Time Quasi-Experiment, David T. Wagner, Christopher M. Barnes, Vivien K. G. Lim, D. Lance Ferris

Research Collection Lee Kong Chian School Of Business

The Internet is a powerful tool that has changed the way people work. However, the ubiquity of the Internet has led to a new workplace threat to productivity—cyberloafing. Building on the ego depletion model of self-regulation, we examine how lost and low-quality sleep influence employee cyberloafing behaviors and how individual differences in conscientiousness moderate these effects. We also demonstrate that the shift to Daylight Saving Time (DST) results in a dramatic increase in cyberloafing behavior at the national level. We first tested the DST–cyberloafing relation through a national quasi-experiment, then directly tested the relation between sleep and cyberloafing in a …


The Effects Of An Online Sleep Hygiene Intervention On Students' Sleep Quality, Giuliana Farias Jul 2012

The Effects Of An Online Sleep Hygiene Intervention On Students' Sleep Quality, Giuliana Farias

Psychology Theses & Dissertations

Students in college or in their first year of medical school undergo increased educational and social pressure. To cope, students may sacrifice sleep to meet demands. Poor sleep affects learning, performance, and health. Studies have been successful at improving sleep quality through the use of in-person recruitment or cognitive-behavioral therapy delivered over the internet (Trockel, Manber, Chang, Thurston, & Tailor, 2011). The purpose of the current study was to investigate whether an online sleep hygiene intervention could improve sleep quality. One hundred thirty-eight students from one undergraduate institution in Southeast Virginia completed this study. Students were divided into groups; one …


The Impact Of Psychological Reactance And Approach/Avoidance Motivation On The Effectiveness Of Sleep Interventions, Barbara Calvert Jul 2012

The Impact Of Psychological Reactance And Approach/Avoidance Motivation On The Effectiveness Of Sleep Interventions, Barbara Calvert

Doctoral Dissertations

Research has shown that college students experience sleep difficulties at a higher rate than the general population. Many factors contribute to the sleep difficulties of college students including lifestyle, stimulant use, alcohol use, physiological arousal, and cognitive factors. Sleep difficulties have been shown to have a significant negative impact on numerous aspects of an individual's life including cognitive/academic performance, physical health, and psychological functioning. College administrators and counselors need effective interventions for students experiencing sleep difficulties. It is also essential that individuals working with college students be aware of personal factors that may impact how an individual responds to a …


The Cortisol Awakening Response (Car) In 2-To 4-Year-Old Children: Effects Of Acute Nighttime Sleep Restriction, Wake Time, And Daytime Napping, Colleen E. Gribbin, Sarah Enos Watamura, Alyssa Cairns, John R. Harsh, Monique K. Lebourgeois May 2012

The Cortisol Awakening Response (Car) In 2-To 4-Year-Old Children: Effects Of Acute Nighttime Sleep Restriction, Wake Time, And Daytime Napping, Colleen E. Gribbin, Sarah Enos Watamura, Alyssa Cairns, John R. Harsh, Monique K. Lebourgeois

Faculty Publications

The cortisol awakening response (CAR) is presumed critically important for healthy adaptation. The current literature, however, is hampered by systematic measurement difficulties relative to awakening, especially with young children. While reports suggest the CAR is smaller in children than adults, well-controlled research in early childhood is scarce. We examined whether robust CARs exist in 2- to 4-year-old children and if sleep restriction, wake timing, and napping influence the CAR (n?=?7). During a 25-day in-home protocol, researchers collected four salivary cortisol samples (0, 15, 30, 45?min post-wake) following five polysomnographic sleep recordings on nonconsecutive days after 4?hr (morning nap), 7?hr (afternoon …


Global Sleep Quality As A Moderator Of Alcohol Consumption And Consequences In College Students, Shannon R. Kenney, Joseph W. Labrie, Justin F. Hummer, Andy T. Pham Apr 2012

Global Sleep Quality As A Moderator Of Alcohol Consumption And Consequences In College Students, Shannon R. Kenney, Joseph W. Labrie, Justin F. Hummer, Andy T. Pham

Heads Up!

The authors examined the relationship between global sleep quality and alcohol risk, including the extent to which global sleep quality moderated the relationship between alcohol use and drinking-related consequences. Global sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI) and alcohol-related consequences were assessed using the Rutgers Alcohol Problem Index (RAPI). The sample consisted of 261 college students (61.3% female, 58.2% Caucasian) who completed online surveys. Using a four-step hierarchical multiple regression model, global sleep quality was found to predict alcohol consequences, over and above assessed covariates (demographics and weekly drinking). Further, global sleep quality emerged as a …


Sleep Disturbances In Alzheimer's Disease And Caregiver Mood: A Diary Study, Anna Maria Katarina Akerstedt Feb 2012

Sleep Disturbances In Alzheimer's Disease And Caregiver Mood: A Diary Study, Anna Maria Katarina Akerstedt

Open Access Dissertations

Sleep disturbances are common in persons with Alzheimer's disease (AD) (Hart et al., 2003) and pose a great strain on their family caregivers (Hope, Keene, Gedling, Fairburn, & Jacoby, 1998) including their emotional functioning (Schulz & Martire, 2004). The current study is the first to examine the impact of daily sleep and mood in persons with AD on their caregiver's sleep and emotional functioning. The study examined sleep and mood across eight days in 40 family caregivers of persons with AD. It was hypothesized that poor sleep in the person with AD person would have a negative impact on caregiver …


Processing Of Emotional Reactivity And Emotional Memory Over Sleep, Bengi Baran, Edward F. Pace-Schott, Callie Ericson, Rebecca M. C. Spencer Jan 2012

Processing Of Emotional Reactivity And Emotional Memory Over Sleep, Bengi Baran, Edward F. Pace-Schott, Callie Ericson, Rebecca M. C. Spencer

Rebecca M. C. Spencer

Sleep enhances memories, particularly emotional memories. As such, it has been suggested that sleep deprivation may reduce post-traumatic stress disorder. This presumes that emotional memory consolidation is paralleled by a reduction in emotional reactivity, an association that has not yet been examined. In the present experiment, we utilized an incidental memory task in humans and obtained valence and arousal ratings during two sessions separated either by 12 hours of daytime wake or 12 hours including overnight sleep. Recognition accuracy was greater following sleep relative to wake for both negative and neutral pictures. While emotional reactivity to negative pictures was greatly …


The Impact Of Sleep Quality On Cognitive Functioning In Parkinson's Disease, Karina Stavitsky, Sandra Neargarder, Yelena Bogdanova, Patrick Mcnamara, Alice Cronin-Golomb Jan 2012

The Impact Of Sleep Quality On Cognitive Functioning In Parkinson's Disease, Karina Stavitsky, Sandra Neargarder, Yelena Bogdanova, Patrick Mcnamara, Alice Cronin-Golomb

Psychology Faculty Publications

In healthy individuals and those with insomnia, poor sleep quality is associated with decrements in performance on tests of cognition, especially executive function. Sleep disturbances and cognitive deficits are both prevalent in Parkinson's disease (PD). Sleep problems occur in over 75% of patients, with sleep fragmentation and decreased sleep efficiency being the most common sleep complaints, but their relation to cognition is unknown. We examined the association between sleep quality and cognition in PD. In 35 non-demented individuals with PD and 18 normal control adults (NC), sleep was measured using 24-hr wrist actigraphy over 7 days. Cognitive domains tested included …