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https://www.readbyqxmd.com/read/28726592/effect-of-extreme-adaptive-frequency-compression-in-bimodal-listeners-on-sound-localization-and-speech-perception
#1
Lidwien C E Veugen, Josef Chalupper, Lucas H M Mens, Ad F M Snik, A John van Opstal
OBJECTIVES: This study aimed to improve access to high-frequency interaural level differences (ILD), by applying extreme frequency compression (FC) in the hearing aid (HA) of 13 bimodal listeners, using a cochlear implant (CI) and conventional HA in opposite ears. DESIGN: An experimental signal-adaptive frequency-lowering algorithm was tested, compressing frequencies above 160 Hz into the individual audible range of residual hearing, but only for consonants (adaptive FC), thus protecting vowel formants, with the aim to preserve speech perception...
July 20, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28725452/mapmysmoke-feasibility-of-a-new-quit-cigarette-smoking-mobile-phone-application-using-integrated-geo-positioning-technology-and-motivational-messaging-within-a-primary-care-setting
#2
Robert S Schick, Thomas W Kelsey, John Marston, Kay Samson, Gerald W Humphris
BACKGROUND: Approximately 11,000 people die in Scotland each year as a result of smoking-related causes. Quitting smoking is relatively easy; maintaining a quit attempt is a very difficult task with success rates for unaided quit attempts stubbornly remaining in the single digits. Pharmaceutical treatment can improve these rates by lowering the overall reward factor of nicotine. However, these and related nicotine replacement therapies do not operate on, or address, the spatial and contextual aspects of smoking behaviour...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28718176/encouraging-top-down-attention-in-visual-search-a-developmental-perspective
#3
Regan Lookadoo, Yingying Yang, Edward C Merrill
Four experiments are reported in which 60 younger children (7-8 years old), 60 older children (10-11 years old), and 60 young adults (18-25 years old) performed a conjunctive visual search task (15 per group in each experiment). The number of distractors of each feature type was unbalanced across displays to evaluate participants' ability to restrict search to the smaller subset of features. The use of top-down attention processes to restrict search was encouraged by providing external aids for identifying and maintaining attention on the smaller set...
July 17, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28718172/components-of-competitor-priming-in-task-switching
#4
Morgan L Teskey, Michael E J Masson
Executing an action in response to a stimulus is thought to result in the creation of an event code that integrates stimulus and action features (Allport, 1987; Hommel in Visual Cognition 5: 183-216, 1998). When switching between tasks, competitor priming occurs if a distractor stimulus cues the retrieval of a previously established event code in which that distractor is bound to a competing task, creating a source of interference with the current task whereby the observer is encouraged to apply the competing task to the distractor...
July 17, 2017: Memory & Cognition
https://www.readbyqxmd.com/read/28716966/hierarchically-organized-medial-frontal-cortex-basal-ganglia-loops-selectively-control-task-and-response-selection
#5
Franziska M Korb, Jiefeng Jiang, Joseph A King, Tobias Egner
Adaptive behavior requires context-sensitive configuration of task-sets that specify time-varying stimulus-response mappings. Intriguingly, response time costs associated with changing task-sets and motor responses are known to be strongly interactive: switch costs at the task-level are small in the presence of a response-switch but large when accompanied by a response-repetition, and vice versa for response-switch costs. The reasons behind this well-known inter-dependence between task- and response-level control processes are currently not well understood...
July 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28714710/a-relative-bilingual-advantage-in-switching-with-preparation-nuanced-explorations-of-the-proposed-association-between-bilingualism-and-task-switching
#6
Alena Stasenko, Georg E Matt, Tamar H Gollan
Bilingual language switching may increase general switching efficiency, but the evidence on this question is mixed. We hypothesized that group differences in switching might be stronger at a long cue-target interval (CTI), which may better tap general switching abilities (Yehene & Meiran, 2007). Eighty Spanish-English bilinguals and 80 monolinguals completed a color-shape switching task, and an analogous language-switching task, varying CTI (short vs. long) in both tasks. With longer preparation time (long CTI), bilinguals exhibited significantly smaller task-switching costs than monolinguals, but only in the first half of trials...
July 17, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28714702/the-effect-of-positive-mood-on-flexible-processing-of-affective-information
#7
Maud Grol, Rudi De Raedt
Recent efforts have been made to understand the cognitive mechanisms underlying psychological resilience. Cognitive flexibility in the context of affective information has been related to individual differences in resilience. However, it is unclear whether flexible affective processing is sensitive to mood fluctuations. Furthermore, it remains to be investigated how effects on flexible affective processing interact with the affective valence of information that is presented. To fill this gap, we tested the effects of positive mood and individual differences in self-reported resilience on affective flexibility, using a task switching paradigm (N = 80)...
July 17, 2017: Emotion
https://www.readbyqxmd.com/read/28708830/speech-in-speech-perception-and-executive-function-involvement
#8
Marcela Perrone-Bertolotti, Maxime Tassin, Fanny Meunier
This present study investigated the link between speech-in-speech perception capacities and four executive function components: response suppression, inhibitory control, switching and working memory. We constructed a cross-modal semantic priming paradigm using a written target word and a spoken prime word, implemented in one of two concurrent auditory sentences (cocktail party situation). The prime and target were semantically related or unrelated. Participants had to perform a lexical decision task on visual target words and simultaneously listen to only one of two pronounced sentences...
2017: PloS One
https://www.readbyqxmd.com/read/28708762/cognitive-load-selectively-influences-the-interruptive-effect-of-pain-on-attention
#9
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/28706481/adverse-effects-of-the-apolipoprotein-e-%C3%AE%C2%B54-allele-on-episodic-memory-task-switching-and-gray-matter-volume-in-healthy-young-adults
#10
Jianfei Nao, Hongzan Sun, Qiushi Wang, Shuang Ma, Shuo Zhang, Xiaoyu Dong, Ying Ma, Xiaoming Wang, Dongming Zheng
Many studies have shown that healthy elderly subjects and patients with Alzheimer's disease (AD) who carry the apolipoprotein E (ApoE) ε4 allele have worse cognitive function and more severe brain atrophy than non-carriers. However, it remains unclear whether this ApoE polymorphism leads to changes of cognition and brain morphology in healthy young adults. In this study, we used an established model to measure verbal episodic memory and core executive function (EF) components (response inhibition, working memory and task switching) in 32 ApoE ε4 carriers and 40 non-carriers between 20 years and 40 years of age...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28705608/the-impact-of-hearing-aids-and-age-related-hearing-loss-on-auditory-plasticity-across-three-months-an-electrical-neuroimaging-study
#11
Nathalie Giroud, Ulrike Lemke, Philip Reich, Katarina L Matthes, Martin Meyer
The present study investigates behavioral and electrophysiological auditory and cognitive-related plasticity in three groups of healthy older adults (60-77 years). Group 1 was moderately hearing-impaired, experienced hearing aid users, and fitted with new hearing aids using non-linear frequency compression (NLFC on); Group 2, also moderately hearing-impaired, used the same type of hearing aids but NLFC was switched off during the entire period of study duration (NLFC off); Group 3 represented individuals with age-appropriate hearing (NHO) as controls, who were not different in IQ, gender, or age from Group 1 and 2...
June 29, 2017: Hearing Research
https://www.readbyqxmd.com/read/28701536/spatially-tuned-normalization-explains-attention-modulation-variance-within-neurons
#12
Amy M Ni, John H R Maunsell
Spatial attention improves perception of attended parts of a scene, a behavioral enhancement accompanied by modulations of neuronal firing rates. These modulations vary in size across neurons in the same brain area. Models of normalization explain much of this variance in attention modulation with differences in tuned normalization across neurons (Lee and Maunsell 2009; Ni et al. 2012). However, recent studies suggest that normalization tuning varies with spatial location both across and within neurons (Ruff et al...
July 12, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28698931/how-to-stay-perfect-the-role-of-memory-and-behavioural-traits-in-an-experienced-problem-and-a-similar-problem
#13
Pizza Ka Yee Chow, Stephen E G Lea, Natalie Hempel de Ibarra, Théo Robert
When animals encounter a task they have solved previously, or the same problem appears in a different apparatus, how does memory, alongside behavioural traits such as persistence, selectivity and flexibility, enhance problem-solving efficiency? We examined this question by first presenting grey squirrels with a puzzle 22 months after their last experience of it (the recall task). Squirrels were then given the same problem presented in a physically different apparatus (the generalisation task) to test whether they would apply the previously learnt tactics to solve the same problem but in a different apparatus...
July 11, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28698107/dynamic-graph-metrics-tutorial-toolbox-and-tale
#14
REVIEW
Ann E Sizemore, Danielle S Bassett
The central nervous system is composed of many individual units - from cells to areas - that are connected with one another in a complex pattern of functional interactions that supports perception, action, and cognition. One natural and parsimonious representation of such a system is a graph in which nodes (units) are connected by edges (interactions). While applicable across spatiotemporal scales, species, and cohorts, the traditional graph approach is unable to address the complexity of time-varying connectivity patterns that may be critically important for an understanding of emotional and cognitive state, task-switching, adaptation and development, or aging and disease progression...
July 8, 2017: NeuroImage
https://www.readbyqxmd.com/read/28694011/the-relationship-between-salivary-c-reactive-protein-and-cognitive-function-in-children-aged-11-14years-does-psychopathology-have-a-moderating-effect
#15
Alexis E Cullen, Ben M Tappin, Patricia A Zunszain, Hannah Dickson, Ruth E Roberts, Naghmeh Nikkheslat, Mizan Khondoker, Carmine M Pariante, Helen L Fisher, Kristin R Laurens
Elevated C-reactive protein (CRP), a non-specific biomarker of systemic bodily inflammation, has been associated with more pronounced cognitive impairments in adults with psychiatric disorders, particularly in the domains of memory and executive function. Whether this association is present in early life (i.e., the time at which the cognitive impairments that characterise these disorders become evident), and is specific to those with emerging psychiatric disorders, has yet to be investigated. To this end, we examined the association between salivary CRP and cognitive function in children aged 11-14years and explored the moderating effect of psychopathology...
July 8, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28693833/relay-tracking-control-for-second-order-multi-agent-systems-with-damaged-agents
#16
Lijing Dong, Jing Li, Qin Liu
This paper investigates a situation where smart agents capable of sensory and mobility are deployed to monitor a designated area. A preset number of agents start tracking when a target intrudes this area. Some of the tracking agents are possible to be out of order over the tracking course. Thus, we propose a cooperative relay tracking strategy to ensure the successful tracking with existence of damaged agents. Relay means that, when a tracking agent quits tracking due to malfunction, one of the near deployed agents replaces it to continue the tracking task...
July 7, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28691260/semantic-fluency-in-deaf-children-who-use-spoken-and-signed-language-in-comparison-with-hearing-peers
#17
C R Marshall, A Jones, A Fastelli, J Atkinson, N Botting, G Morgan
BACKGROUND: Deafness has an adverse impact on children's ability to acquire spoken languages. Signed languages offer a more accessible input for deaf children, but because the vast majority are born to hearing parents who do not sign, their early exposure to sign language is limited. Deaf children as a whole are therefore at high risk of language delays. AIMS: We compared deaf and hearing children's performance on a semantic fluency task. Optimal performance on this task requires a systematic search of the mental lexicon, the retrieval of words within a subcategory and, when that subcategory is exhausted, switching to a new subcategory...
July 10, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28690562/trait-cheerfulness-does-not-influence-switching-costs-but-modulates-preparation-and-repetition-effects-in-a-task-switching-paradigm
#18
Raúl López-Benítez, Hugo Carretero-Dios, Alberto Acosta, Juan Lupiáñez
Many studies have shown the beneficial effect of positive emotions on various cognitive processes, such as creativity and cognitive flexibility. Cheerfulness, understood as an affective predisposition to sense of humor, has been associated with positive emotions. So far, however, no studies have shown the relevance of this dimension in cognitive flexibility processes. The aim of this research was to analyze the relationship between cheerfulness and these processes. To this end, we carried out two studies using a task-switching paradigm...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28687417/just-a-minute-meditation-rapid-voluntary-conscious-state-shifts-in-long-term-meditators
#19
Ajay Kumar Nair, Arun Sasidharan, John P John, Seema Mehrotra, Bindu M Kutty
Meditation induces a modified state of consciousness that remains under voluntary control. Can meditators rapidly and reversibly bring about mental state changes on demand? To check, we carried out 128 channel EEG recordings on Brahma Kumaris Rajayoga meditators (36 long term: median 14240h meditation; 25 short term: 1095h) and controls (25) while they tried to switch every minute between rest and meditation states in different conditions (eyes open and closed; before and after an engaging task). Long term meditators robustly shifted states with enhanced theta power (4-8Hz) during meditation...
July 4, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28684915/effects-of-subthalamic-nucleus-deep-brain-stimulation-on-emotional-working-memory-capacity-and-mood-in-patients-with-parkinson-s-disease
#20
Angela Merkl, Eva Röck, Tanja Schmitz-Hübsch, Gerd-Helge Schneider, Andrea A Kühn
BACKGROUND: In Parkinson's disease (PD), cognitive symptoms and mood changes may be even more distressing for the patient than motor symptoms. OBJECTIVE: Our aim was to determine the effects of bilateral subthalamic nucleus deep brain stimulation (STN-DBS) on working memory (WM) and mood. METHODS: Sixteen patients with PD were assessed with STN-DBS switched on (DBS-ON) and with dopaminergic treatment (Med-ON) compared to switched off (DBS-OFF) and without dopaminergic treatment (Med-OFF)...
2017: Neuropsychiatric Disease and Treatment
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