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Auditory dual-task

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https://www.readbyqxmd.com/read/28723907/auditory-and-visual-distractors-disrupt-multisensory-temporal-acuity-in-the-crossmodal-temporal-order-judgment-task
#1
Cassandra L Dean, Brady A Eggleston, Kyla David Gibney, Enimielen Aligbe, Marissa Blackwell, Leslie Dowell Kwakye
The ability to synthesize information across multiple senses is known as multisensory integration and is essential to our understanding of the world around us. Sensory stimuli that occur close in time are likely to be integrated, and the accuracy of this integration is dependent on our ability to precisely discriminate the relative timing of unisensory stimuli (crossmodal temporal acuity). Previous research has shown that multisensory integration is modulated by both bottom-up stimulus features, such as the temporal structure of unisensory stimuli, and top-down processes such as attention...
2017: PloS One
https://www.readbyqxmd.com/read/28718840/bilinguals-working-memory-wm-advantage-and-their-dual-language-practices
#2
Eunju Yang
The present study investigates a possible working memory (WM) difference between monolingual and bilingual groups and explores the relationship between their WM advantage and language practices. A mixed methods design was employed for the study. To measure participants' WM, auditory and visual digit span tasks were conducted on the different language groups: 20 Korean near-monolinguals, and 40 Korean-English bilinguals with two different levels of second language (L2) proficiency. Bilinguals' daily language practices were explored through semi-structured interviews with eight bilinguals...
July 18, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28662465/neuroimaging-of-an-attention-demanding-dual-task-during-dynamic-postural-control
#3
Andrea L Rosso, Massimo Cenciarini, Patrick J Sparto, Patrick J Loughlin, Joseph M Furman, Theodore J Huppert
Cognitive tasks impact postural control when performed concurrently as dual-tasks. This is presumed to result from capacity limitations in relevant brain regions. We used functional near-infrared spectroscopy (fNIRS) to measure brain activation of the left motor, temporal, and dorsal-lateral prefrontal brain regions of younger (n=6) and older (n=10) adults. Brain activation was measured during an auditory choice reaction task (CRT) and standing on a dynamic posturography platform, both as single-tasks and concurrently as dual-task...
June 21, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28659844/transferability-of-dual-task-coordination-skills-after-practice-with-changing-component-tasks
#4
Torsten Schubert, Roman Liepelt, Sebastian Kübler, Tilo Strobach
Recent research has demonstrated that dual-task performance with two simultaneously presented tasks can be substantially improved as a result of practice. Among other mechanisms, theories of dual-task practice-relate this improvement to the acquisition of task coordination skills. These skills are assumed (1) to result from dual-task practice, but not from single-task practice, and (2) to be independent from the specific stimulus and response mappings during the practice situation and, therefore, transferable to new dual task situations...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28654960/the-cost-of-making-an-eye-movement-a-direct-link-between-visual-working-memory-and-saccade-execution
#5
Martijn J Schut, Nathan Van der Stoep, Albert Postma, Stefan Van der Stigchel
To facilitate visual continuity across eye movements, the visual system must presaccadically acquire information about the future foveal image. Previous studies have indicated that visual working memory (VWM) affects saccade execution. However, the reverse relation, the effect of saccade execution on VWM load is less clear. To investigate the causal link between saccade execution and VWM, we combined a VWM task and a saccade task. Participants were instructed to remember one, two, or three shapes and performed either a No Saccade-, a Single Saccade- or a Dual (corrective) Saccade-task...
June 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28644923/examining-transfer-effects-of-dual-task-training-protocols-for-a-complex-locomotor-task
#6
Timothy A Worden, Lori Ann Vallis
Training protocols designed to improve dual-task performance of an obstacle crossing and auditory Stroop task (OBS+Stroop) were tested. In Experiment  1 , following baseline collection of OBS+Stroop trials, proximally related walking training was performed, and participants were then retested on the OBS+Stroop test. After training, participants adopted a more cautious obstacle crossing strategy, indicating a potentially safer navigation strategy. Transfer effects from distally related training were then examined (Experiment  2 ); a computer game training paradigm was examined using the same testing protocol as Experiment  1 ...
June 23, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28545933/extracting-multidimensional-stimulus-response-correlations-using-hybrid-encoding-decoding-of-neural-activity
#7
REVIEW
Jacek P Dmochowski, Jason Ki, Paul DeGuzman, Paul Sajda, Lucas C Parra
In neuroscience, stimulus-response relationships have traditionally been analyzed using either encoding or decoding models. Here we propose a hybrid approach that decomposes neural activity into multiple components, each representing a portion of the stimulus. The technique is implemented via canonical correlation analysis (CCA) by temporally filtering the stimulus (encoding) and spatially filtering the neural responses (decoding) such that the resulting components are maximally correlated. In contrast to existing methods, this approach recovers multiple correlated stimulus-response pairs, and thus affords a richer, multidimensional analysis of neural representations...
May 22, 2017: NeuroImage
https://www.readbyqxmd.com/read/28528460/sensory-and-motoric-influences-on-attention-dynamics-during-standing-balance-recovery-in-young-and-older-adults
#8
Mark S Redfern, April J Chambers, J Richard Jennings, Joseph M Furman
This study investigated the impact of attention on the sensory and motor actions during postural recovery from underfoot perturbations in young and older adults. A dual-task paradigm was used involving disjunctive and choice reaction time (RT) tasks to auditory and visual stimuli at different delays from the onset of two types of platform perturbations (rotations and translations). The RTs were increased prior to the perturbation (preparation phase) and during the immediate recovery response (response initiation) in young and older adults, but this interference dissipated rapidly after the perturbation response was initiated (<220 ms)...
August 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28528005/attentional-load-of-walking-in-children-aged-7-12-and-in-adults
#9
Guillaume Chauvel, Estelle Palluel, Arthur Brandao, Guillaume Barbieri, Vincent Nougier, Isabelle Olivier
The amount of attentional resources necessary to walk in children, and how they evolve during childhood remains unclear. This study examined children's gait parameters in different dual-task conditions. 53 children, divided into two age groups (7-9 and 10-12 years old), and 18 adults walked on a mat in three different cognitive conditions: watching a video (video condition), listening its soundtrack (audio condition), and without any additional task (control condition). Questions were asked at the end of the video and audio conditions to make sure that participants were paying attention to the stimuli...
July 2017: Gait & Posture
https://www.readbyqxmd.com/read/28487563/neural-correlates-of-distraction-and-conflict-resolution-for-nonverbal-auditory-events
#10
Hannah J Stewart, Sygal Amitay, Claude Alain
In everyday situations auditory selective attention requires listeners to suppress task-irrelevant stimuli and to resolve conflicting information in order to make appropriate goal-directed decisions. Traditionally, these two processes (i.e. distractor suppression and conflict resolution) have been studied separately. In the present study we measured neuroelectric activity while participants performed a new paradigm in which both processes are quantified. In separate block of trials, participants indicate whether two sequential tones share the same pitch or location depending on the block's instruction...
May 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28486677/the-effects-of-age-and-hearing-loss-on-dual-task-balance-and-listening
#11
Halina Bruce, Daniel Aponte, Nancy St-Onge, Natalie Phillips, Jean-Pierre Gagné, Karen Z H Li
Objectives: Among older adults (OA), hearing loss is associated with an increased risk for falls. The aim of the present study was to experimentally investigate the cognitive compensation hypothesis, wherein decreased auditory and motor functioning are compensated by the recruitment of cognitive resources. Method: Twenty-nine younger adults (YA), 26 OA, and 32 OA with age-related hearing loss (ARHL) completed a dual-task paradigm consisting of cognitive and balance recovery tasks performed singly and concurrently...
May 9, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28484411/age-related-interference-between-the-selection-of-input-output-modality-mappings-and-postural-control-a-pilot-study
#12
Christine Stelzel, Gesche Schauenburg, Michael A Rapp, Stephan Heinzel, Urs Granacher
Age-related decline in executive functions and postural control due to degenerative processes in the central nervous system have been related to increased fall-risk in old age. Many studies have shown cognitive-postural dual-task interference in old adults, but research on the role of specific executive functions in this context has just begun. In this study, we addressed the question whether postural control is impaired depending on the coordination of concurrent response-selection processes related to the compatibility of input and output modality mappings as compared to impairments related to working-memory load in the comparison of cognitive dual and single tasks...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28450537/being-first-matters-topographical-representational-similarity-analysis-of-erp-signals-reveals-separate-networks-for-audiovisual-temporal-binding-depending-on-the-leading-sense
#13
Roberto Cecere, Joachim Gross, Ashleigh Willis, Gregor Thut
In multisensory integration, processing in one sensory modality is enhanced by complementary information from other modalities. Intersensory timing is crucial in this process because only inputs reaching the brain within a restricted temporal window are perceptually bound. Previous research in the audiovisual field has investigated various features of the temporal binding window, revealing asymmetries in its size and plasticity depending on the leading input: auditory-visual (AV) or visual-auditory (VA). Here, we tested whether separate neuronal mechanisms underlie this AV-VA dichotomy in humans...
May 24, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28439249/cross-modal-action-complexity-action-and-rule-related-memory-retrieval-in-dual-response-control
#14
Aleks Pieczykolan, Lynn Huestegge
Normally, we do not act within a single effector system only, but rather coordinate actions across several output modules (cross-modal action). Such cross-modal action demands can vary substantially with respect to their complexity in terms of the number of task-relevant response combinations and to-be-retrieved stimulus-response (S-R) mapping rules. In the present study, we study the impact of these two types of cross-modal action complexity on dual-response costs (i.e., performance differences between single- and dual-action demands)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28419851/an-emergent-functional-parcellation-of-the-temporal-cortex
#15
REVIEW
Rebecca L Jackson, Claude J Bajada, Grace E Rice, Lauren L Cloutman, Matthew A Lambon Ralph
The temporal lobe has been associated with various cognitive functions which include memory, auditory cognition and semantics. However, at a higher level of conceptualisation, all of the functions associated with the temporal lobe can be considered as lying along one major axis; from modality-specific to modality-general processing. This paper used a spectral reordering technique on resting-state and task-based functional data to extract the major organisational axis of the temporal lobe in a bottom-up, data-driven fashion...
April 15, 2017: NeuroImage
https://www.readbyqxmd.com/read/28414092/numbers-and-functional-lateralization-a-visual-half-field-and-dichotic-listening-study-in-proficient-bilinguals
#16
Michal Klichowski, Gregory Króliczak
Potential links between language and numbers and the laterality of symbolic number representations in the brain are still debated. Furthermore, reports on bilingual individuals indicate that the language-number interrelationships might be quite complex. Therefore, we carried out a visual half-field (VHF) and dichotic listening (DL) study with action words and different forms of symbolic numbers used as stimuli to test the laterality of word and number processing in single-, dual-language and mixed -task and language- contexts...
April 14, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28411444/continuous-and-difficult-discrete-cognitive-tasks-promote-improved-stability-in-older-adults
#17
Yves Lajoie, Deborah A Jehu, Natalie Richer, Alan Chan
Directing attention away from postural control and onto a cognitive task affords the emergence of automatic control processes. Perhaps the continuous withdrawal of attention from the postural task facilitates an automatization of posture as opposed to only intermittent withdrawal; however this is unknown in the aging population. Twenty older adults (69.9±3.5years) stood with feet together on a force platform for 60s while performing randomly assigned discrete and continuous cognitive tasks. Participants were instructed to stand comfortably with their arms by their sides while verbally responding to the auditory stimuli as fast as possible during the discrete tasks, or mentally performing the continuous cognitive tasks...
April 3, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28390824/resting-state-networks-associated-with-cognitive-processing-show-more-age-related-decline-than-those-associated-with-emotional-processing
#18
Kaoru Nashiro, Michiko Sakaki, Meredith N Braskie, Mara Mather
Correlations in activity across disparate brain regions during rest reveal functional networks in the brain. Although previous studies largely agree that there is an age-related decline in the "default mode network," how age affects other resting-state networks, such as emotion-related networks, is still controversial. Here we used a dual-regression approach to investigate age-related alterations in resting-state networks. The results revealed age-related disruptions in functional connectivity in all 5 identified cognitive networks, namely the default mode network, cognitive-auditory, cognitive-speech (or speech-related somatosensory), and right and left frontoparietal networks, whereas such age effects were not observed in the 3 identified emotion networks...
June 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28363436/brain-activity-associated-with-selective-attention-divided-attention-and-distraction
#19
Emma Salo, Viljami Salmela, Juha Salmi, Jussi Numminen, Kimmo Alho
Top-down controlled selective or divided attention to sounds and visual objects, as well as bottom-up triggered attention to auditory and visual distractors, has been widely investigated. However, no study has systematically compared brain activations related to all these types of attention. To this end, we used functional magnetic resonance imaging (fMRI) to measure brain activity in participants performing a tone pitch or a foveal grating orientation discrimination task, or both, distracted by novel sounds not sharing frequencies with the tones or by extrafoveal visual textures...
June 1, 2017: Brain Research
https://www.readbyqxmd.com/read/28355632/cross-modal-attention-influences-auditory-contrast-sensitivity-decreasing-visual-load-improves-auditory-thresholds-for-amplitude-and-frequency-modulated-sounds
#20
Vivian M Ciaramitaro, Hiu Mei Chow, Luke G Eglington
We used a cross-modal dual task to examine how changing visual-task demands influenced auditory processing, namely auditory thresholds for amplitude- and frequency-modulated sounds. Observers had to attend to two consecutive intervals of sounds and report which interval contained the auditory stimulus that was modulated in amplitude (Experiment 1) or frequency (Experiment 2). During auditory-stimulus presentation, observers simultaneously attended to a rapid sequential visual presentation-two consecutive intervals of streams of visual letters-and had to report which interval contained a particular color (low load, demanding less attentional resources) or, in separate blocks of trials, which interval contained more of a target letter (high load, demanding more attentional resources)...
March 1, 2017: Journal of Vision
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