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https://www.readbyqxmd.com/read/28526867/aberrant-functional-connectivity-in-depression-as-an-index-of-state-and-trait-rumination
#1
David Rosenbaum, Alina Haipt, Kristina Fuhr, Florian B Haeussinger, Florian G Metzger, Hans-Christoph Nuerk, Andreas J Fallgatter, Anil Batra, Ann-Christine Ehlis
Depression has been shown to be related to a variety of aberrant brain functions and structures. Particularly the investigation of alterations in functional connectivity (FC) in major depressive disorder (MDD) has been a promising endeavor, since a better understanding of pathological brain networks may foster our understanding of the disease. However, the underling mechanisms of aberrant FC in MDD are largely unclear. Using functional near-infrared spectroscopy (fNIRS) we investigated FC in the cortical parts of the default mode network (DMN) during resting-state in patients with current MDD...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28481618/the-experience-of-secrecy
#2
Michael L Slepian, Jinseok S Chun, Malia F Mason
The concept of secrecy calls to mind a dyadic interaction: one person hiding a secret from another during a conversation or social interaction. The current work, however, demonstrates that this aspect of secrecy is rather rare. Taking a broader view of secrecy as the intent to conceal information, which only sometimes necessitates concealment, yields a new psychology of secrecy. Ten studies demonstrate the secrets people have, what it is like to have a secret, and what about secrecy is related to lower well-being...
May 8, 2017: Journal of Personality and Social Psychology
https://www.readbyqxmd.com/read/28471215/cognitive-aging-and-the-distinction-between-intentional-and-unintentional-mind-wandering
#3
Paul Seli, David Maillet, Daniel Smilek, Jonathan M Oakman, Daniel L Schacter
A growing number of studies have reported age-related reductions in the frequency of mind wandering. Here, at both the trait (Study 1) and state (Study 2) levels, we reexamined this association while distinguishing between intentional (deliberate) and unintentional (spontaneous) mind wandering. Based on research demonstrating age-accompanied deficits in executive functioning, we expected to observe increases in unintentional mind wandering with increasing age. Moreover, because aging is associated with increased task motivation, we reasoned that older adults might be more engaged in their tasks, and hence, show a more pronounced decline in intentional mind wandering relative to young adults...
May 4, 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28467513/relationship-between-workload-and-mind-wandering-in-simulated-driving
#4
Yuyu Zhang, Takatsune Kumada
Mental workload and mind-wandering are highly related to driving safety. This study investigated the relationship between mental workload and mind-wandering while driving. Participants (N = 40) were asked to perform a car following task in driving simulator, and report whether they had experienced mind-wandering upon hearing a tone. After driving, participants reported their workload using the NASA-Task Load Index (TLX). Results revealed an interaction between workload and mind-wandering in two different perspectives...
2017: PloS One
https://www.readbyqxmd.com/read/28461112/a-neural-model-of-mind-wandering-trends-in-cognitive-sciences-20-570-578-2016
#5
Matthias Mittner, Guy E Hawkins, Wouter Boekel, Birte U Forstmann
No abstract text is available yet for this article.
April 28, 2017: Trends in Cognitive Sciences
https://www.readbyqxmd.com/read/28460272/mind-wandering-and-task-stimuli-stimulus-dependent-thoughts-influence-performance-on-memory-tasks-and-are-more-often-past-versus-future-oriented
#6
David Maillet, Paul Seli, Daniel L Schacter
Although many studies have indicated that participants frequently mind-wander during experimental tasks, relatively little research has examined the extent to which such thoughts are triggered by task stimuli (stimulus-dependent thoughts; SDTs) versus internally triggered (stimulus-independent thoughts; SITs). In the current experiment, we assessed differences in the frequency and characteristics of SDTs and SITs, as well as their associations with subsequent memory in young adults. Whereas frequency of SDTs (but not SITs) increased in a task with more meaningful stimuli, frequency of SITs (but not SDTs) increased in an easier task...
April 28, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28458764/working-memory-capacity-mind-wandering-and-creative-cognition-an-individual-differences-investigation-into-the-benefits-of-controlled-versus-spontaneous-thought
#7
Bridget A Smeekens, Michael J Kane
Should executive control, as indicated by working memory capacity (WMC) and mind-wandering propensity, help or hinder creativity? Sustained and focused attention should help guide a selective search of solution-relevant information in memory and help inhibit uncreative, yet accessible, ideas. However, unfocused attention and daydreaming should allow mental access to more loosely relevant concepts, remotely linked to commonplace solutions. Three individual-differences studies inserted incubation periods into one or two divergent thinking tasks and tested whether WMC (assessed by complex span tasks) and incubation-period mind wandering (assessed as probed reports of task-unrelated thought [TUT]) predicted post-incubation performance...
November 2016: Psychology of Aesthetics, Creativity, and the Arts
https://www.readbyqxmd.com/read/28458727/self-reported-mindful-attention-and-awareness-go-no-go-response-time-variability-and-attention-deficit-hyperactivity-disorder
#8
Julian R Keith, Mallory E Blackwood, Rano T Mathew, Len B Lecci
The abilities to stabilize the focus of attention, notice attention lapses, and return attention to an intended object following lapses are precursors for mindfulness. Individuals diagnosed with attention-deficit hyperactivity disorder (ADHD) are deficient in the attentional and self-control skills that characterize mindfulness. The present study assessed the relationship between mindfulness and ADHD in young adults using the Mindful Attention and Awareness Scale (MAAS), a computerized Go/No-Go task (the Test of Variables of Attention (TOVA)), the World Health Organization Adult Self-Report Scale (ASRS), a tool used as an adult ADHD screen, the Beck Anxiety Inventory (BAI), and the Beck Depression Inventory-II (BDI-II)...
June 2017: Mindfulness
https://www.readbyqxmd.com/read/28458093/working-memory-capacity-and-mind-wandering-during-low-demand-cognitive-tasks
#9
Matthew K Robison, Nash Unsworth
Individual differences in working memory capacity (WMC) typically predict reduced rates of mind-wandering during laboratory tasks (Randall, Oswald, & Beier, 2014). However, some studies have shown a positive relationship between WMC and mind-wandering during particularly low-demand tasks (Levinson, Smallwood, & Davidson, 2012; Rummel & Boywitt, 2014; Zavagnin, Borella, & De Beni, 2014). More specifically, Baird, Smallwood, and Schooler (2011) found that when individuals with greater WMC do mind-wander, they tend entertain more future-oriented thoughts...
April 27, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28447842/cognitive-coupling-during-reading
#10
Caitlin Mills, Art Graesser, Evan F Risko, Sidney K D'Mello
We hypothesize that cognitively engaged readers dynamically adjust their reading times with respect to text complexity (i.e., reading times should increase for difficult sections and decrease for easier ones) and failure to do so should impair comprehension. This hypothesis is consistent with theories of text comprehension but has surprisingly been untested. We tested this hypothesis by analyzing 4 datasets in which participants (N = 484) read expository texts using a self-paced reading paradigm. Participants self-reported mind wandering in response to pseudorandom thought-probes during reading and completed comprehension assessments after reading...
April 27, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28402561/the-role-of-the-default-mode-network-in-component-processes-underlying-the-wandering-mind
#11
Giulia L Poerio, Mladen Sormaz, Hao-Ting Wang, Daniel Margulies, Elizabeth Jefferies, Jonathan Smallwood
Experiences such as mind-wandering illustrate that cognition is not always tethered to events in the here-and-now. Although converging evidence emphasises the default mode network (DMN) in mind-wandering, its precise contribution remains unclear. The DMN comprises cortical regions that are maximally distant from primary sensory and motor cortex, a topological location that may support the stimulus-independence of mind-wandering. The DMN is functionally heterogeneous, comprising regions engaged by memory, social cognition, and planning; processes relevant to mind-wandering content...
March 21, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28390029/a-closer-look-at-the-relationship-between-the-default-network-mind-wandering-negative-mood-and-depression
#12
Shaghayegh Konjedi, Reza Maleeh
By a systematic analysis of the current literature on the neural correlates of mind wandering, that is, the default network (DN), and by shedding light on some determinative factors and conditions which affect the relationship between mind wandering and negative mood, we show that (1) mind wandering per se does not necessarily have a positive correlation with negative mood and, on the higher levels, depression. We propose that negative mood as a consequence of mind wandering generally depends on two determinative conditions, that is, whether mind wandering is with or without meta-awareness and whether mind wandering occurs during high or low vigilance states; (2) increased activity of the DN is not necessarily followed by an increase in unhappiness and depression...
April 7, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28376373/mindfulness-and-mind-wandering-the-protective-effects-of-brief-meditation-in-anxious-individuals
#13
Mengran Xu, Christine Purdon, Paul Seli, Daniel Smilek
Mind wandering can be costly, especially when we are engaged in attentionally demanding tasks. Preliminary studies suggest that mindfulness can be a promising antidote for mind wandering, albeit the evidence is mixed. To better understand the exact impact of mindfulness on mind wandering, we had a sample of highly anxious undergraduate students complete a sustained-attention task during which off-task thoughts including mind wandering were assessed. Participants were randomly assigned to a meditation or control condition, after which the sustained-attention task was repeated...
April 1, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28371688/what-did-you-have-in-mind-examining-the-content-of-intentional-and-unintentional-types-of-mind-wandering
#14
Paul Seli, Brandon C W Ralph, Mahiko Konishi, Daniel Smilek, Daniel L Schacter
It has recently been argued that researchers should distinguish between mind wandering (MW) that is engaged with and without intention. Supporting this argument, studies have found that intentional and unintentional MW have behavioral/neural differences, and that they are differentially associated with certain variables of theoretical interest. Although there have been considerable inroads made into the distinction between intentional/unintentional MW, possible differences in their content remain unexplored...
May 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28370735/dorsomedial-prefontal-cortex-supports-spontaneous-thinking-per-se
#15
T T Raij, T J J Riekki
Spontaneous thinking, an action to produce, consider, integrate, and reason through mental representations, is central to our daily experience and has been suggested to serve crucial adaptive purposes. Such thinking occurs among other experiences during mind wandering that is associated with activation of the default mode network among other brain circuitries. Whether and how such brain activation is linked to the experience of spontaneous thinking per se remains poorly known. We studied 51 healthy subjects using a comprehensive experience-sampling paradigm during 3T functional magnetic resonance imaging...
June 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28345604/mind-wandering-and-alterations-to-default-mode-network-connectivity-when-listening-to-naturalistic-versus-artificial-sounds
#16
Cassandra D Gould van Praag, Sarah N Garfinkel, Oliver Sparasci, Alex Mees, Andrew O Philippides, Mark Ware, Cristina Ottaviani, Hugo D Critchley
Naturalistic environments have been demonstrated to promote relaxation and wellbeing. We assess opposing theoretical accounts for these effects through investigation of autonomic arousal and alterations of activation and functional connectivity within the default mode network (DMN) of the brain while participants listened to sounds from artificial and natural environments. We found no evidence for increased DMN activity in the naturalistic compared to artificial or control condition, however, seed based functional connectivity showed a shift from anterior to posterior midline functional coupling in the naturalistic condition...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28333503/stereotype-threat-as-a-trigger-of-mind-wandering-in-older-adults
#17
Megan L Jordano, Dayna R Touron
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 span task containing mind-wandering probes. ST-activated OAs reported more TRI than ST-relieved OAs and had worse performance on the operation span task...
March 23, 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28293692/special-topic-introduction-understanding-engagement-mind-wandering-boredom-and-attention
#18
James Danckert
No abstract text is available yet for this article.
March 14, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28244016/intentionality-and-meta-awareness-of-mind-wandering-are-they-one-and-the-same-or-distinct-dimensions
#19
Paul Seli, Brandon C W Ralph, Evan F Risko, Jonathan W Schooler, Daniel L Schacter, Daniel Smilek
Researchers have recently demonstrated that mind-wandering episodes can vary on numerous dimensions, and it has been suggested that assessing these dimensions will play an important role in our understanding of mind wandering. One dimension that has received considerable attention in recent work is the intentionality of mind wandering. Although it has been claimed that indexing the intentionality of mind wandering will be necessary if researchers are to obtain a coherent understanding of the wandering mind, one concern is that this dimension might be redundant with another, longstanding, dimension: namely, meta-awareness...
February 27, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28203153/bold-independent-computational-entropy-assesses-functional-donut-like-structures-in-brain-fmri-images
#20
James F Peters, Sheela Ramanna, Arturo Tozzi, Ebubekir İnan
We introduce a novel method for the measurement of information level in fMRI (functional Magnetic Resonance Imaging) neural data sets, based on image subdivision in small polygons equipped with different entropic content. We show how this method, called maximal nucleus clustering (MNC), is a novel, fast and inexpensive image-analysis technique, independent from the standard blood-oxygen-level dependent signals. MNC facilitates the objective detection of hidden temporal patterns of entropy/information in zones of fMRI images generally not taken into account by the subjective standpoint of the observer...
2017: Frontiers in Human Neuroscience
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