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Auditory dual-task

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https://www.readbyqxmd.com/read/28439249/cross-modal-action-complexity-action-and-rule-related-memory-retrieval-in-dual-response-control
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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...
March 28, 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
#7
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
https://www.readbyqxmd.com/read/28335695/impact-of-cognition-and-noise-reduction-on-speech-perception-in-adults-with-unilateral-cochlear-implants
#8
Suzanne Carolyn Purdy, David Welch, Ellen Giles, Catherine Louise Anne Morgan, Renique Tenhagen, Abin Kuruvilla-Mathew
OBJECTIVES: The purpose of this study was to investigate the impact of cognition and noise reduction (NR) technology in cochlear implants (CIs) on speech perception and listening effort. METHODS: Thirteen adults fitted with unilateral CIs (Nucleus(®) 6, CP900) participated in this study. Participants performed: (I) cognitive tests of working memory and processing speed, (II) speech perception in noise tests, and (III) an auditory-visual dual-task paradigm to quantify listening effort, as a part of the three-phase experimental study...
March 24, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28335024/impaired-dual-tasking-in-parkinson-s-disease-is-associated-with-reduced-focusing-of-cortico-striatal-activity
#9
Freek Nieuwhof, Bastiaan R Bloem, Miriam F Reelick, Esther Aarts, Inbal Maidan, Anat Mirelman, Jeffrey M Hausdorff, Ivan Toni, Rick C Helmich
Impaired dual tasking, namely the inability to concurrently perform a cognitive and a motor task (e.g. 'stops walking while talking'), is a largely unexplained and frequent symptom of Parkinson's disease. Here we consider two circuit-level accounts of how striatal dopamine depletion might lead to impaired dual tasking in patients with Parkinson's disease. First, the loss of segregation between striatal territories induced by dopamine depletion may lead to dysfunctional overlaps between the motor and cognitive processes usually implemented in parallel cortico-striatal circuits...
March 17, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28286477/transfer-effects-to-a-multimodal-dual-task-after-working-memory-training-and-associated-neural-correlates-in-older-adults-a-pilot-study
#10
Stephan Heinzel, Jérôme Rimpel, Christine Stelzel, Michael A Rapp
Working memory (WM) performance declines with age. However, several studies have shown that WM training may lead to performance increases not only in the trained task, but also in untrained cognitive transfer tasks. It has been suggested that transfer effects occur if training task and transfer task share specific processing components that are supposedly processed in the same brain areas. In the current study, we investigated whether single-task WM training and training-related alterations in neural activity might support performance in a dual-task setting, thus assessing transfer effects to higher-order control processes in the context of dual-task coordination...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28237813/newly-acquired-audio-visual-associations-bias-perception-in-binocular-rivalry
#11
Wolfgang Einhäuser, Philipp Methfessel, Alexandra Bendixen
When distinct stimuli are presented to the two eyes, their mental representations alternate in awareness. Here, such "binocular rivalry" was used to investigate whether audio-visual associations bias visual perception. To induce two arbitrary associations, each between a tone and a grating of a specific color and motion direction, observers were required to respond whenever this combination was presented, but not for other tone-grating combinations. After about 20min of this induction phase, each of the gratings was presented to one eye to induce rivalry, while either of the two tones or no tone was played...
March 6, 2017: Vision Research
https://www.readbyqxmd.com/read/28230418/effect-of-age-on-attentional-control-in-dual-tasking
#12
Bianca Bier, Nick Corriveau Lecavalier, Dominique Malenfant, Isabelle Peretz, Sylvie Belleville
Background/Study Context: The age-related differences in divided attention and attentional control have been associated with several negative outcomes later in life. However, numerous questions remain unanswered regarding the nature of these age differences and the role of attentional control abilities in dual-tasking. The aim of this study was to evaluate the sources for age differences in dual-tasking and more specifically: (1) whether they occur because of differences in attentional control skills, or (2) whether the age-related decrement in dual-tasking is due to a general resource reduction that would affect the ability to complete any demanding task...
March 2017: Experimental Aging Research
https://www.readbyqxmd.com/read/28226309/the-feasibility-of-singing-to-improve-gait-in-parkinson-disease
#13
Elinor C Harrison, Marie E McNeely, Gammon M Earhart
Brain regions important for controlling movement are also responsible for rhythmic processing. In Parkinson disease (PD), defective internal timing within the brain has been linked to impaired beat discrimination, and may contribute to a loss of ability to maintain a steady gait rhythm. Less rhythmic gait is inherently less efficient, and this may lead to gait impairment including reduced speed, cadence, and stride length, as well as increased variability. While external rhythmic auditory stimulation (e.g. a metronome beat) is well-established as an effective tool to stabilize gait in PD, little is known about whether self-generated cues such as singing have the same beneficial effect on gait in PD...
March 2017: Gait & Posture
https://www.readbyqxmd.com/read/28213115/cross-modal-representation-of-spoken-and-written-word-meaning-in-left-pars-triangularis
#14
Antonietta Gabriella Liuzzi, Rose Bruffaerts, Ronald Peeters, Katarzyna Adamczuk, Emmanuel Keuleers, Simon De Deyne, Gerrit Storms, Patrick Dupont, Rik Vandenberghe
The correspondence in meaning extracted from written versus spoken input remains to be fully understood neurobiologically. Here, in a total of 38 subjects, the functional anatomy of cross-modal semantic similarity for concrete words was determined based on a dual criterion: First, a voxelwise univariate analysis had to show significant activation during a semantic task (property verification) performed with written and spoken concrete words compared to the perceptually matched control condition. Second, in an independent dataset, in these clusters, the similarity in fMRI response pattern to two distinct entities, one presented as a written and the other as a spoken word, had to correlate with the similarity in meaning between these entities...
February 14, 2017: NeuroImage
https://www.readbyqxmd.com/read/28203353/auditory-stimulus-detection-partially-depends-on-visuospatial-attentional-resources
#15
Basil Wahn, Supriya Murali, Scott Sinnett, Peter König
Humans' ability to detect relevant sensory information while being engaged in a demanding task is crucial in daily life. Yet, limited attentional resources restrict information processing. To date, it is still debated whether there are distinct pools of attentional resources for each sensory modality and to what extent the process of multisensory integration is dependent on attentional resources. We addressed these two questions using a dual task paradigm. Specifically, participants performed a multiple object tracking task and a detection task either separately or simultaneously...
January 2017: I-Perception
https://www.readbyqxmd.com/read/28151878/a-training-approach-to-improve-stepping-automaticity-while-dual-tasking-in-parkinson-s-disease-a-prospective-pilot-study
#16
Taylor Chomiak, Alexander Watts, Nicole Meyer, Fernando V Pereira, Bin Hu
BACKGROUND: Deficits in motor movement automaticity in Parkinson's disease (PD), especially during multitasking, are early and consistent hallmarks of cognitive function decline, which increases fall risk and reduces quality of life. This study aimed to test the feasibility and potential efficacy of a wearable sensor-enabled technological platform designed for an in-home music-contingent stepping-in-place (SIP) training program to improve step automaticity during dual-tasking (DT). METHODS: This was a 4-week prospective intervention pilot study...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28146680/prefrontal-hemodynamics-of-physical-activity-and-environmental-complexity-during-cognitive-work
#17
Ryan McKendrick, Ranjana Mehta, Hasan Ayaz, Melissa Scheldrup, Raja Parasuraman
OBJECTIVE: The aim of this study was to assess performance and cognitive states during cognitive work in the presence of physical work and in natural settings. BACKGROUND: Authors of previous studies have examined the interaction between cognitive and physical work, finding performance decrements in working memory. Neuroimaging has revealed increases and decreases in prefrontal oxygenated hemoglobin during the interaction of cognitive and physical work. The effect of environment on cognitive-physical dual tasking has not been previously considered...
February 2017: Human Factors
https://www.readbyqxmd.com/read/28080113/higher-order-cognitive-control-in-dual-tasks-evidence-from-task-pair-switching
#18
Patricia Hirsch, Sophie Nolden, Iring Koch
In the present study, we combined the psychological refractory period (PRP) paradigm with a novel task-pair switching logic which enabled us to isolate performance costs occurring at the global level of task-pairs. In Experiment 1, in which we used conceptually overlapping responses for Task 1 (T1) and Task 2 (T2), we generated 3 task-pairs by combining 1 of 3 visual tasks (T1) with an auditory task (T2). In addition to worse performance after a short SOA than a long SOA (i.e., PRP effect), we found impaired performance in n - 1 task-pair switches as compared to n - 1 task-pair repetitions (i...
March 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/27932975/adaptations-of-prefrontal-brain-activity-executive-functions-and-gait-in-healthy-elderly-following-exergame-and-balance-training-a-randomized-controlled-study
#19
Alexandra Schättin, Rendel Arner, Federico Gennaro, Eling D de Bruin
During aging, the prefrontal cortex (PFC) undergoes age-dependent neuronal changes influencing cognitive and motor functions. Motor-learning interventions are hypothesized to ameliorate motor and cognitive deficits in older adults. Especially, video game-based physical exercise might have the potential to train motor in combination with cognitive abilities in older adults. The aim of this study was to compare conventional balance training with video game-based physical exercise, a so-called exergame, on the relative power (RP) of electroencephalographic (EEG) frequencies over the PFC, executive function (EF), and gait performance...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27890161/primary-or-secondary-tasks-dual-task-interference-between-cyclist-hazard-perception-and-cadence-control-using-cross-modal-sensory-aids-with-rider-assistance-bike-computers
#20
Chao-Yang Yang, Cheng-Tse Wu
This research investigated the risks involved in bicycle riding while using various sensory modalities to deliver training information. To understand the risks associated with using bike computers, this study evaluated hazard perception performance through lab-based simulations of authentic riding conditions. Analysing hazard sensitivity (d') of signal detection theory, the rider's response time, and eye glances provided insights into the risks of using bike computers. In this study, 30 participants were tested with eight hazard perception tasks while they maintained a cadence of 60 ± 5 RPM and used bike computers with different sensory displays, namely visual, auditory, and tactile feedback signals...
March 2017: Applied Ergonomics
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