An experiment was conducted with 240, 1-d-old, male broilers to investigate the effects of Saccharomyces cerevisiae (SC) cell components on the growth performance, meat quality, and ileal mucosa development. There were 4 dietary treatments, each consisting of 6 replicates. Whole yeast (WY), SC extract (YE), and SC cell wall (CW) were added at 0.5, 0.3, and 0.3%, respectively, to the control sta...

Attention may be distracted from its intended focus both by stimuli in the external environment and by internally generated task-unrelated thoughts during mind wandering. However, previous attention research has focused almost exclusively on distraction by external stimuli, and the extent to which mind wandering relates to external distraction is as yet unclear. In the present study, the author...

Conscious experience is fluid; it rarely remains on one topic for an extended period without deviation. Its dynamic nature is illustrated by the experience of mind wandering, in which attention switches from a current task to unrelated thoughts and feelings. Studies exploring the phenomenology of mind wandering highlight the importance of its content and relation to meta-cognition in determinin...

When the mind wanders, conscious thoughts come to mind that are only loosely related to the task being performed. This phenomenon produces tension within the cognitive sciences because the interfering nature of these thoughts is at odds with the assumption that such processes are functional in daily life. In their comment, McVay and Kane (2010) suggested that failures in executive control can c...

Older adults (OAs) report less overall mind-wandering than younger adults (YAs) but more task-related interference (TRI; mind-wandering about the task). The current study examined TRI while manipulating older adults' performance-related concerns. We compared groups for which memory-related stereotype threat (ST) was activated or relieved to a control group. Participants completed an operation s...

Mind wandering is a prevalent but highly subjective phenomenon that is difficult to measure. Typically studies use probes at random points throughout at study that pop in and ask participants “Are you mind wandering” where they indicate yes or no, and then resume the study. This study investigated a method of extracting eye blinks from raw eye tracking data while participants were reading texts...

Current accounts suggest that self-referential thought serves a pivotal function in the human ability to simulate the future during mind-wandering. Using experience sampling, this hypothesis was tested in two studies that explored the extent to which self-reflection impacts both retrospection and prospection during mind-wandering. Study 1 demonstrated that a brief period of self-reflection yiel...

The prospective bias is a salient feature of mind wandering in healthy adults, yet little is known about the temporal focus of children's mind wandering. In the present study, (I) we developed the temporal focus of mind wandering questionnaire for school-age children (TFMWQ-C), a 12-item scale with good test-retest reliability and construct validity. (II) The criterion validity was tested by th...

Mind wandering episodes have been construed as periods of "stimulus-independent" thought, where our minds are decoupled from the external sensory environment. In two experiments, we used behavioral and event-related potential (ERP) measures to determine whether mind wandering episodes can also be considered as periods of "response-independent" thought, with our minds disengaged from adjusting o...

CONTEXT Mind wandering--defined as a cognitive focus on information that is unrelated to immediate sensory input or the task at hand--is a ubiquitous characteristic of the human condition. When it occurs, the integrity of a wide range of cognitive skills can be compromised. OBJECTIVES The current paper describes the phenomenon of mind wandering, explores its potential role in medical practice...