Cognitive Psychology Commons^™

The Effect Of Interruptions On Primary Task Performance In Safety-Critical Environments, Cheryl Ann Nicholas

Doctoral Dissertations

Safety critical systems in medicine utilize alarms to signal potentially life threatening situations to professionals and patients. In particular, in the medical field multiple alarms from equipment are activated daily and often simultaneously. There are a number of alarms which require caregivers to take breaks in complex, primary tasks to attend to the interruption task which is signaled by the alarm. The motivation for this research is the knowledge that, in general, interrupting tasks can have a potentially negative impact on performance and outcomes of the primary task. The focus of this research is on the effect of an interrupting …

The On-Screen Water Cooler: Effects Of Televised User-Generated Comments On Cognitive Processing, Social Presence, And Viewing Experience., Jaclyn Ann Cameron

Doctoral Dissertations

Social television combines traditional television viewing and interactions with social media to create a phenomenon that connects otherwise autonomous viewers through a shared viewing experience. This dissertation explores one type of social television: on-screen user-generated comments. Although the practice spans multiple television genres, little is known about its effect on viewers’ cognitive processing of the media, perceptions of the social presence of other viewers, or the viewers’ experience of the media. Two experimental studies explored the effects of on-screen user-generated comments on cognitive processing of the media message, the effect of manipulating the content of on-screen user-generated comments and individual …

Chronotype Preference, Partial Sleep Deprivation, And Executive Functions Performance Throughout The Wake-Cycle, Devin Layne Merritt

Doctoral Dissertations

Sleep is vital to survival and well-being. Adequate sleep, which is conceptualized in terms of quantity and quality, is positively related to a number of cognitive functions. In terms of length, it has been recommended that individuals in late adolescence and adulthood should receive no less than eight hours of sleep. Negative effects on higher-order mental processes have been found in states of sleep deprivation. Individuals who experience total sleep deprivation show decrements in performance on tasks of executive function (i.e. sustained attention, planning, and decision making). However, the effects of partial sleep deprivation on executive functions has not been …

Influences On Self-Regulated Learning In Low-Income Children: Examining The Role Of Private And Social Speech As Self-Regulation Tools, Lisa Ann Connor

Doctoral Dissertations

Self-regulated learning (SRL) allows children to become autonomous learners through facilitating their active planning, monitoring, and evaluation of their performance in the classroom. Low-income children have been found to exhibit lower SRL abilities compared to middle-class children. SRL is linked to a number of long-term academic outcomes, and thus, understanding what contributes to this ability is essential for intervention. One potential mediator of children’s emerging SRL abilities is language. Social Constructivist Theory provides a lens to view this relationship between language and SRL, denoting the importance of both the physical and social dimensions of the classroom when examining cognitive development. …

Effect Of Mindfulness Training On Interpretation Exam Performance In Graduate Students In Interpreting, Julie E. Johnson

Doctoral Dissertations

Many graduate interpreting students struggle because the real-time, interactive nature of interpreting dictates that they be able to regulate their attention across different parallel cognitive activities and manage the inherent stress and unpredictability of the task. Within the framework of Cognitive Load Theory, this mixed-methods study explored the effect of short-term mindfulness training on consecutive interpreting exam performance using a quasi-experimental repeated-measures design. It also examined the relationships among mindfulness, stress, aspects of attention, and interpreting exam performance. The sample included 67 students (age M = 26.9 years; 82% female) across seven language programs (Chinese, French, German, Japanese, Korean, Russian, …

The Effect Of More And Less Relevant Details And Teacher Voice On Student Retention And Problem-Solving Transfer In Teacher-Created Multimedia, Colette Roche

Doctoral Dissertations

Many teachers create multimedia resources for their students, but most are uncertain as to what factors to consider regarding the design of multimedia instructional materials. Prior research identified instructional design principles for multimedia including the coherence principle and voice principle.

The purpose of this study was to test the coherence principle in a realistic setting using a heterogeneous group of ninth grade students in a humanities course to determine the effect of seductive details on retention and problem-solving transfer. To extend understanding of the voice principle, this study examined the effect of the teacher’s voice on student learning as measured …