Search results for "multitasking"
showing 10 items of 27 documents
As We Think We May Teach: Ideologies on IT in the Classroom
2015
The extended use of IT devices has raised scholars’ awareness to its impact on the organization of classroom interactions. Studies claim that the intensive use of IT in the classroom has the potential of revolutionizing education in a way that it increases students’ ownership and control over their learning processes (Ryberg 2013). Others claim that devices such as interactive whiteboards contribute to the emergence of an “effective style” of teaching (Gillen et al. 2007: 254). Further, Lotherington & Ronda (2014) emphasize the role of IT, multimedia, multimodality, collaborative communication, agentive participation and multitasking for a contemporary understanding of what they call “commu…
Multitasking in aging: ERP correlates of dual-task costs in young versus low, intermediate, and high performing older adults
2018
Abstract With large inter-individual variability, older adults show a decline in cognitive performance in dual-task situations. Differences in attentional processes, working memory, response selection, and general speed of information processing have been discussed as potential sources of this decline and its between-subject variability. In comparison to young subjects (n = 36, mean age: 25 years), we analyzed the performance of a large group of healthy elderly subjects (n = 138, mean age: 70 years) in a conflicting dual-task situation (PRP paradigm). Based on their dual-task costs (DTCs), the older participants were clustered in three groups of high, medium, and low performing elderly. DTC…
Lihasväsytyksen vaikutus reaktionopeuteen multitasking tilanteessa
2012
Hyvän aerobisen kunnon tiedetään olevan luotettava mittari terveyden arviointiin. Fyysisesti aktiiviset henkilöt kestävät lihasväsytystä pidempään kuin harjoittelemattomat henkilöt. Kuitenkin lihasväsytyksen kokeminen ja sen vaikutukset ovat yksilöllisiä. Se miten fyysinen väsytys vaikuttaa normaaliin ajattelukykyyn ja päätöksentekoon ei ole vielä täysin selvillä. Eräs keino tämän havaitsemiseen on tarkkailla reaktioaikoja fyysisen väsytyksen aikana. Tässä pro gradu -työssä tutkittiin kuinka fyysinen väsytys vaikuttaa reaktioaikoihin muodostamalla multitasking-tilanne fyysisen väsytyksen ja reaktiotestien välille. Mittaustilanteessa väsytys suoritettiin samanaikaisesti reaktiotestien kanssa…
Digital Stress over the Life Span: The Effects of Communication Load and Internet Multitasking on Perceived Stress and Psychological Health Impairmen…
2016
The present study investigated the psychological health effects and motivational origins of digital stress based on a representative survey of 1,557 German Internet users between 14 and 85 years of age. Communication load resulting from private e-mails and social media messages as well as Internet multitasking were positively related to perceived stress and had significant indirect effects on burnout, depression, and anxiety. Perceived social pressure and the fear of missing out on information and social interaction were key drivers of communication load and Internet multitasking. Age significantly moderated the health effects of digital stress as well as the motivational drivers of communi…
Modelling Drivers’ Adaptation to Assistance Systems
2021
Human factors research and engineering of advanced driving assistance systems (ADAS) must consider how drivers adapt to their presence. The major obstruction to this at the moment is poor understanding of the details of the adaptive processes that the human cognition undergoes when faced with such changes. This paper presents a simulation model that predicts how drivers adapt to a steering assistance system. Our approach is based on computational rationality, and demonstrates how task interleaving strategies adapt to the task environment and the driver’s goals and cognitive limitations. A supervisor controls eye movements between the driving and non-driving tasks, making this choice on the …
Sleep restriction for the duration of a work week impairs multitasking performance
2010
It is important to develop shift schedules that minimise the chance for sleep-related human error in safety-critical domains. Experimental data on the effects of sleep restriction (SR) play a key role in this development work. In order to provide such data, we conducted an experiment in which cognitively demanding and long-duration task performance, simulating task performance at work, was measured under SR and following recovery. Twenty healthy male volunteers, aged 19-29 years, participated in the study. Thirteen of them had first two baseline days (8-h sleep opportunity per day), then five SR days (4-h sleep) and finally two recovery days (8-h sleep). Seven controls were allowed to sleep…
Immune networks: Multi-tasking capabilities at medium load
2013
Associative network models featuring multi-tasking properties have been introduced recently and studied in the low load regime, where the number $P$ of simultaneously retrievable patterns scales with the number $N$ of nodes as $P\sim \log N$. In addition to their relevance in artificial intelligence, these models are increasingly important in immunology, where stored patterns represent strategies to fight pathogens and nodes represent lymphocyte clones. They allow us to understand the crucial ability of the immune system to respond simultaneously to multiple distinct antigen invasions. Here we develop further the statistical mechanical analysis of such systems, by studying the medium load r…
Balancing Structural and Temporal Constraints in Multitasking Contexts
2016
Recent research has shown that when people multitask, both the subtask structure and the temporal constraints of the component tasks strongly influence people’s task-switching behavior. In this paper, we propose an integrated theoretical account and associated computational model that aims to quantify how people balance structural and temporal constraints in everyday multitasking. We validate the theory using data from an empirical study in which drivers performed a visual-search task while navigating a driving environment. Through examination of illustrative protocols from the model and human drivers as well as the overall fit on the aggregate glance data, we explore the implications of th…
Design methods of multithreaded architectures for multicore microcontrollers
2011
The development of electronic technology today has allowed the implementation of complex architectures, which led to the emergence of multicore processors technology. Multicore architectures are built from superscalar and multithreaded processors. Integrating new technologies in embedded applications requires the development of multicore processors that can be integrated into a smaller area like a classic microcontroller. These processors must manage fewer resources and be able to manage multiple tasks simultaneously. In this paper we present a method of modeling, simulation and evaluation of two multithreaded architectures with limited resources, which could be integrated into embedded sys…
Media multitasking is associated with distractibility and increased prefrontal activity in adolescents and young adults.
2016
The current generation of young people indulges in more media multitasking behavior (e.g., instant messaging while watching videos) in their everyday lives than older generations. Concerns have been raised about how this might affect their attentional functioning, as previous studies have indicated that extensive mediamultitasking in everyday life may be associated with decreased attentional control. In the current study, 149 adolescents and young adults (aged 13-24 years) performed speech-listening and reading tasks that required maintaining attention in the presence of distractor stimuli in the othermodality or dividing attention between two concurrent tasks. Brain activity during task pe…