keyword
MENU ▼
Read by QxMD icon Read
search

Dual-Task

keyword
https://www.readbyqxmd.com/read/28713264/white-matter-changes-related-gait-and-executive-function-deficits-associations-with-age-and-parkinson-s-disease
#1
Jennifer Sartor, Kristina Bettecken, Felix P Bernhard, Marc Hofmann, Till Gladow, Tobias Lindig, Meltem Ciliz, Mara Ten Kate, Johanna Geritz, Sebastian Heinzel, Marije Benedictus, Philip Scheltens, Markus A Hobert, Walter Maetzler
Background: White matter changes (WMC) are a common finding among older adults and patients with Parkinson's disease (PD), and have been associated with, e.g., gait deficits and executive dysfunction. How the factors age and PD influence WMC-related deficits is, to our best knowledge, not investigated to date. We hypothesized that advanced age and presence of PD leads to WMC-related symptoms while practicing tasks with a low complexity level, and low age and absence of PD leads to WMC-related symptoms while practicing tasks with a high complexity level...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28713252/effect-of-postural-control-demands-on-early-visual-evoked-potentials-during-a-subjective-visual-vertical-perception-task-in-adolescents-with-idiopathic-scoliosis
#2
Yi-Tzu Chang, Ling-Fu Meng, Chun-Ju Chang, Po-Liang Lai, Chi-Wen Lung, Jen-Suh Chern
Subjective visual vertical (SVV) judgment and standing stability were separately investigated among patients with adolescent idiopathic scoliosis (AIS). Although, one study has investigated the central mechanism of stability control in the AIS population, the relationships between SVV, decreased standing stability, and AIS have never been investigated. Through event-related potentials (ERPs), the present study examined the effect of postural control demands (PDs) on AIS central mechanisms related to SVV judgment and standing stability to elucidate the time-serial stability control process...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28713237/behavioral-and-neural-correlates-of-executive-function-interplay-between-inhibition-and-updating-processes
#3
Na Young Kim, Ellen Wittenberg, Chang S Nam
This study investigated the interaction between two executive function processes, inhibition and updating, through analyses of behavioral, neurophysiological, and effective connectivity metrics. Although, many studies have focused on behavioral effects of executive function processes individually, few studies have examined the dynamic causal interactions between these two functions. A total of twenty participants from a local university performed a dual task combing flanker and n-back experimental paradigms, and completed the Operation Span Task designed to measure working memory capacity...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28712343/overload-from-anxiety-a-non-motor-cause-for-gait-impairments-in-parkinson-s-disease
#4
Kaylena A Ehgoetz Martens, Carolina R A Silveira, Brittany N Intzandt, Quincy J Almeida
Threatening situations lead to observable gait deficits in individuals with Parkinson's disease (PD) who suffer from high trait anxiety levels. The specific characteristics of gait that are affected appear to be similar to behaviors observed while walking during a dual-task (DT) condition. Yet, it remains unclear whether anxiety is similar to a cognitive load. If it were, then those with PD who have high trait anxiety might be expected to be more susceptible to DT interference during walking. Thus, the overall aim of this study was to evaluate whether trait anxiety influences gait during single-task (ST) and DT walking...
July 17, 2017: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28711652/dual-task-walking-over-a-compliant-foam-surface-a-comparison-of-people-with-transfemoral-amputation-and-controls
#5
Sara J Morgan, Brian J Hafner, Valerie E Kelly
People with lower limb amputation are unable to reliably sense ground characteristics due to compromised sensory inputs from the missing limb. As a result, they may rely on compensatory strategies, such as use of cognitive resources, when walking over complex surfaces. This study examined interactions between cognition and walking over a compliant surface in 14 people with transfemoral amputation (TFA) and 14 controls using a dual-task paradigm. Walking was assessed with quantitative motion analysis in both single-task (walking alone) and dual-task (walking while performing a cognitive task) conditions over a compliant foam surface...
July 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28708762/cognitive-load-selectively-influences-the-interruptive-effect-of-pain-on-attention
#6
David J Moore, Christopher Eccleston, Edmund Keogh
Pain is known to interrupt attentional performance. Such interference effects seem to occur preferentially for tasks that are complex and/or difficult. However, few studies have directly manipulated memory load in the context of pain interference to test this view. Therefore, the present study examines the effect of experimental manipulations of both memory load and pain on three tasks previously found to be sensitive to pain interference. Three experiments were conducted. A different task was examined in each experiment, each comprising of a high and low cognitive load versions of the task...
July 11, 2017: Pain
https://www.readbyqxmd.com/read/28708697/simultaneous-physical-and-mental-effort-alters-visual-function
#7
Jesús Vera, Raimundo Jiménez, José Antonio García, David Cárdenas
PURPOSE: Perceptual processing is sensitive to physiological changes. Thus, the homeostatic disturbances during and after exercise may alter the visual function. Here, we investigated the effect of simultaneous physical effort and two levels of cognitive demand on skills related to the visuoperceptual and motor processing. METHODS: Eighteen male regular exercisers performed 60 minutes of simultaneous physical exercise (cycling at 60 ± 5% of reserve heart rate) and cognitive effort (mental workload)...
July 14, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28707215/disentangling-perceptual-and-psycholinguistic-factors-in-syntactic-processing-tone-monitoring-via-erps
#8
David J Lobina, Josep Demestre, José E García-Albea
Franco, Gaillard, Cleeremans, and Destrebecqz (Behavior Research Methods, 47, 1393-1403, 2015), in a study on statistical learning employing the click-detection paradigm, conclude that more needs to be known about how this paradigm interacts with statistical learning and speech perception. Past results with this monitoring technique have pointed to an end-of-clause effect in parsing-a structural effect-but we here show that the issues are a bit more nuanced. Firstly, we report two Experiments (1a and 1b), which show that reaction times (RTs) are affected by two factors: (a) processing load, resulting in a tendency for RTs to decrease across a sentence, and (b) a perceptual effect which adds to this tendency and moreover helps neutralize differences between sentences with slightly different structures...
July 13, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28704735/successful-voluntary-recruitment-of-cognitive-control-under-acute-stress
#9
Franziska Plessow, Susann Schade, Clemens Kirschbaum, Rico Fischer
In highly complex task situations (dual tasking) stressed individuals have been shown to adapt the most resource-efficient task processing strategy, accepting costs of performance. We argue that an interpretation of this behavior in terms of a stress-induced impairment of cognitive control might be too simplified. In the present study, we therefore tested whether stressed individuals are still capable to up-regulate cognitive control when instructed to adapt more resource-intensive strategies, enabling preservation of task performance...
July 10, 2017: Cognition
https://www.readbyqxmd.com/read/28700673/the-trickle-down-effect-of-predictability-secondary-task-performance-benefits-from-predictability-in-the-primary-task
#10
Magdalena Ewa Król, Michał Król
Predictions optimize processing by reducing attentional resources allocation to expected or predictable sensory data. Our study demonstrates that these saved processing resources can be then used on concurrent stimuli, and in consequence improve their processing and encoding. We illustrate this "trickle-down" effect with a dual task, where the primary task varied in terms of predictability. The primary task involved detection of a pre-specified symbol that appeared at some point of a short video of a dot moving along a random, semi-predictable or predictable trajectory...
2017: PloS One
https://www.readbyqxmd.com/read/28697573/dual-tasking-negatively-impacts-obstacle-avoidance-abilities-in-post-stroke-individuals-with-visuospatial-neglect-task-complexity-matters
#11
Gayatri Aravind, Anouk Lamontagne
BACKGROUND: Persons with perceptual-attentional deficits due to visuospatial neglect (VSN) after a stroke are at a risk of collisions while walking in the presence of moving obstacles. The attentional burden of performing a dual-task may further compromise their obstacle avoidance performance, putting them at a greater risk of collisions. OBJECTIVE: The objective of this study was to compare the ability of persons with (VSN+) and without VSN (VSN-) to dual task while negotiating moving obstacles...
July 6, 2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28695295/prioritized-identification-of-attractive-and-romantic-partner-faces-in-rapid-serial-visual-presentation
#12
Koyo Nakamura, Shihoko Arai, Hideaki Kawabata
People are sensitive to facial attractiveness because it is an important biological and social signal. As such, our perceptual and attentional system seems biased toward attractive faces. We tested whether attractive faces capture attention and enhance memory access in an involuntary manner using a dual-task rapid serial visual presentation (dtRSVP) paradigm, wherein multiple faces were successively presented for 120 ms. In Experiment 1, participants (N = 26) were required to identify two female faces embedded in a stream of animal faces as distractors...
July 10, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/28689462/measuring-working-memory-load-effects-on-electrophysiological-markers-of-attention-orienting-during-a-simulated-drive
#13
Veerle Ross, Alexandra Y Vossen, Fren T Y Smulders, Robert A C Ruiter, Tom Brijs, Kris Brijs, Geert Wets, Ellen M M Jongen
Intersection accidents result in a significant proportion of road fatalities, and attention allocation likely plays a role. Attention allocation may depend on (limited) working memory (WM) capacity. Driving is often combined with tasks increasing WM load, consequently impairing attention orienting. This study (n = 22) investigated WM load effects on event-related potentials (ERPs) related to attention orienting. A simulated driving environment allowed continuous lane-keeping measurement. Participants were asked to orient attention covertly towards the side indicated by an arrow, and to respond only to moving cars appearing on the attended side by pressing a button...
July 10, 2017: Ergonomics
https://www.readbyqxmd.com/read/28682124/motor-cognitive-effects-of-a-computerized-game-based-training-method-in-people-with-dementia-a-randomized-controlled-trial
#14
Stefanie Wiloth, Christian Werner, Nele Christin Lemke, Jürgen Bauer, Klaus Hauer
OBJECTIVES: To examine the effects of a computerized, game-based training on motor-cognitive performances, the transfer of training effects on untrained tasks, and the sustainability of training gains in people with dementia. METHOD: Ninety-nine individuals with a mean age of 82.9 (5.8) and dementia participated in a 10-week randomized controlled trial with three-month follow-up. The intervention group (IG) received a motor-cognitive training on (Physiomat®) including concurrent dual-tasks of balance control with cognitive demands (Physiomat®-Trail Making Tasks (PTMTs))...
July 6, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/28676771/differences-in-executive-functioning-in-children-with-attention-deficit-and-hyperactivity-disorder-adhd
#15
M Rosa Elosúa, Sandra Del Olmo, María José Contreras
In recent years, the interest in Attention Deficit and Hyperactivity Disorder (ADHD) and its relation to deficits in working memory (WM) and more specifically the different executive functions (EFs) has grown, to the point of confirming that these are quite frequent in this disorder. The aim of this study was precisely to explore differences in executive functioning of WM in fourth grade Primary school children with and without ADHD (26 and 29 children, respectively), introducing rigorous control measures in the tests used...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28675663/postural-control-in-children-with-dyslexia-effects-of-emotional-stimuli-in-a-dual-task-environment
#16
Nathalie Goulème, Christophe-Loïc Gerard, Maria Pia Bucci
The aim of this study was to compare the visual exploration strategies used during a postural control task across participants with and without dyslexia. We simultaneously recorded eye movements and postural control while children were viewing different types of emotional faces. Twenty-two children with dyslexia and twenty-two aged-matched children without dyslexia participated in the study. We analysed the surface area, the length and the mean velocity of the centre of pressure for balance in parallel with visual saccadic latency, the number of saccades and the time spent in regions of interest...
July 4, 2017: Dyslexia: the Journal of the British Dyslexia Association
https://www.readbyqxmd.com/read/28671116/motor-phenotype-in-neurodegenerative-disorders-gait-and-balance-platform-study-design-protocol-for-the-ontario-neurodegenerative-research-initiative-ondri
#17
Manuel Montero-Odasso, Frederico Pieruccini-Faria, Rob Bartha, Sandra E Black, Elizabeth Finger, Morris Freedman, Barry Greenberg, David A Grimes, Robert A Hegele, Christopher Hudson, Peter W Kleinstiver, Anthony E Lang, Mario Masellis, Paula M McLaughlin, Douglas P Munoz, Stephen Strother, Richard H Swartz, Sean Symons, Maria Carmela Tartaglia, Lorne Zinman, Michael J Strong, William McIlroy
BACKGROUND: The association of cognitive and motor impairments in Alzheimer's disease and other neurodegenerative diseases is thought to be related to damage in the common brain networks shared by cognitive and cortical motor control processes. These common brain networks play a pivotal role in selecting movements and postural synergies that meet an individual's needs. Pathology in this "highest level" of motor control produces abnormalities of gait and posture referred to as highest-level gait disorders...
June 27, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28667902/cognitive-motor-interference-in-multiple-sclerosis-what-happens-when-the-gait-speed-is-fixed
#18
Ofir Malcay, Yevgenia Grinberg, Shani Berkowitz, Leora Hershkovitz, Alon Kalron
During the last decade, numerous studies have confirmed a coupling between walking performance and cognition in people with multiple sclerosis (PwMS). Our aim was to provide new insights into a walking-cognitive dual-task (DT) in PwMS. We tested the DT phenomenon by controlling the walking speed using an instrumented treadmill. Thirty PwMS (20 women) with a mean age 40.1 (SD=12.0) participated in the study. Twenty-one healthy subjects served as controls. Each subject completed a sequence of tests: a) Normal walking (ST) - the participant walked on the instrumented treadmill at a comfortable walking speed for 1min; b) Cognitive evaluation (ST) - subjects performed two cognitive tests while seated; c) DT cognitive tests performed while walking on the treadmill at the identical speed performed during normal walking...
June 23, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28665329/treatment-of-intrusive-suicidal-imagery-using-eye-movements
#19
Jaël S van Bentum, Marit Sijbrandij, Marcus J H Huibers, Annemiek Huisman, Arnoud Arntz, Emily A Holmes, Ad J F M Kerkhof
Suicide and suicidal behavior are major public health concerns, and affect 3-9% of the population worldwide. Despite increased efforts for national suicide prevention strategies, there are still few effective interventions available for reducing suicide risk. In this article, we describe various theoretical approaches for suicide ideation and behavior, and propose to examine the possible effectiveness of a new and innovative preventive strategy. A model of suicidal intrusion (mental imagery related to suicide, also referred to as suicidal flash-forwards) is presented describing one of the assumed mechanisms in the etiology of suicide and the mechanism of therapeutic change...
June 30, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28663728/object-localization-does-not-imply-awareness-of-object-category-at-the-break-of-continuous-flash-suppression
#20
Florian Kobylka, Malte Persike, Günter Meinhardt
In continuous flash suppression (CFS), a dynamic noise masker, presented to one eye, suppresses conscious perception of a test stimulus, presented to the other eye, until the suppressed stimulus comes to awareness after few seconds. But what do we see breaking the dominance of the masker in the transition period? We addressed this question with a dual-task in which observers indicated (i) whether the test object was left or right of the fixation mark (localization) and (ii) whether it was a face or a house (categorization)...
2017: Frontiers in Human Neuroscience
keyword
keyword
1663
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"