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Auditory working memory

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https://www.readbyqxmd.com/read/28602997/neural-mechanisms-underlying-valence-inferences-to-sound-the-role-of-the-right-angular-gyrus
#1
Fernando Bravo, Ian Cross, Sarah Hawkins, Nadia Gonzalez, Jorge Docampo, Claudio Bruno, Emmanuel Andreas Stamatakis
We frequently infer others' intentions based on non-verbal auditory cues. Although the brain underpinnings of social cognition have been extensively studied, no empirical work has yet examined the impact of musical structure manipulation on the neural processing of emotional valence during mental state inferences. We used a novel sound-based theory-of-mind paradigm in which participants categorized stimuli of different sensory dissonance level in terms of positive/negative valence. Whilst consistent with previous studies which propose facilitated encoding of consonances, our results demonstrated that distinct levels of consonance/dissonance elicited differential influences on the right angular gyrus, an area implicated in mental state attribution and attention reorienting processes...
June 8, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28579367/early-postnatal-handling-reduces-hippocampal-amyloid-plaque-formation-and-enhances-cognitive-performance-in-appswe-ps1de9-mice-at-middle-age
#2
Sylvie L Lesuis, Beryl A C E van Hoek, Paul J Lucassen, Harm J Krugers
In rodents, fragmented and low levels of maternal care have been implicated in age-related cognitive decline and the incidence and progression of Alzheimer's pathology. In contrast, enhancing early postnatal maternal care has been associated with improved cognitive function later in life. Here we examined whether early postnatal handling of mouse pups from postnatal days 2-9 enhanced maternal care and whether this affected cognition and Alzheimer pathology at 5 and 11months of age in the APPswe/PS1dE9 mouse model for Alzheimer's disease...
June 1, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28577274/unexpected-events-disrupt-visuomotor-working-memory-and-increase-guessing
#3
R Dawn Finzi, Bradley R Postle, Timothy F Brady, Adam R Aron
When an unexpected event, such as a car horn honking, occurs in daily life, it often disrupts our train of thought. In the lab, this effect was recently modeled with a task in which verbal working memory (WM) was disrupted by unexpected auditory events (Wessel et al. in Nature Communications, 7, 11195, 2016). Here we tested whether this effect extends to a different type of WM-namely, visuomotor. We found that unexpected auditory events similarly decremented visuomotor WM. Moreover, this effect persisted for many more trials than had previously been shown for verbal WM, and the effect occurred for two different types of unexpected auditory events...
June 2, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28562181/working-memory-predicts-presence-of-auditory-verbal-hallucinations-in-schizophrenia-and-bipolar-disorder-with-psychosis
#4
Lisanne M Jenkins, Anjuli S Bodapati, Rajiv P Sharma, Cherise Rosen
OBJECTIVE: The recent dramatic increase in research investigating auditory verbal hallucinations (AVHs) has broadened the former narrow focus on schizophrenia to incorporate additional populations that experience these symptoms. However, an understanding of potential shared mechanisms remains elusive. Based on theories suggesting a failure of top-down cognitive control, we aimed to compare the relationship between AVHs and cognition in two categorical diagnoses of psychosis, schizophrenia and psychotic bipolar disorder...
May 31, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28555100/the-impact-of-monaural-beat-stimulation-on-anxiety-and-cognition
#5
Leila Chaieb, Elke C Wilpert, Christian Hoppe, Nikolai Axmacher, Juergen Fell
Application of auditory beat stimulation has been speculated to provide a promising new tool with which to alleviate symptoms of anxiety and to enhance cognition. In spite of reportedly similar EEG effects of binaural and monaural beats, data on behavioral effects of monaural beats are still lacking. Therefore, we examined the impact of monaural beat stimulation on anxiety, mood and memory performance. We aimed to target states related to anxiety levels and general well-being, in addition to long-term and working memory processes, using monaural beats within the range of main cortical rhythms...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28538047/auditory-processing-disorder-what-does-it-mean-and-what-can-be-done
#6
Krista Bartlett, Elissa Kelley, Julie Purdy, Martin T Stein
Julian, an 11-year-old boy in the sixth grade with a compliant disposition and a positive attitude, has had a significant decline in his academic performance over the last 2 years. He spends much of his time in the nurse's office with headaches and fatigue. He reports that he cannot concentrate or follow along in class. Vision and hearing screenings were normal.Julian's teachers report that although he has no behavior problem, he is inattentive and does not put forth the effort she feels he is capable of giving...
June 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28533517/vortioxetine-reduces-bold-signal-during-performance-of-the-n-back-working-memory-task-a-randomised-neuroimaging-trial-in-remitted-depressed-patients-and-healthy-controls
#7
J Smith, M Browning, S Conen, R Smallman, J Buchbjerg, K G Larsen, C K Olsen, S R Christensen, G R Dawson, J F Deakin, P Hawkins, R Morris, G Goodwin, C J Harmer
Cognitive dysfunction is common in depression during both acute episodes and remission. Vortioxetine is a novel multimodal antidepressant that has improved cognitive function including executive function in depressed patients in randomised placebo-controlled clinical trials. However, it is unclear whether vortioxetine is able to target directly the neural circuitry implicated in the cognitive deficits in depression. Remitted depressed (n=48) and healthy volunteers (n=48) were randomised to receive 14 days treatment with 20 mg vortioxetine or placebo in a double-blind design...
May 23, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28513073/early-neurocognitive-improvements-following-parathyroidectomy-for-primary-hyperparathyroidism
#8
Shivani Shah-Becker, Jonathan Derr, Benjamin S Oberman, Aaron Baker, Brian Saunders, Michele M Carr, David Goldenberg
OBJECTIVES: To establish a time frame for postoperative improvements in neurocognitive function in patients who undergo parathyroidectomy for primary hyperparathyroidism by utilizing repeat neuropsychological assessment at multiple time points before and after surgery. STUDY DESIGN: Prospective cohort study. METHODS: A prospective study was conducted at a tertiary academic medical center between August 2014 and December 2015, including 50 patients with primary hyperparathyroidism who underwent parathyroidectomy...
May 16, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28508125/judgement-bias-in-pigs-is-independent-of-performance-in-a-spatial-holeboard-task-and-conditional-discrimination-learning
#9
Sanne Roelofs, Eimear Murphy, Haifang Ni, Elise Gieling, Rebecca E Nordquist, F Josef van der Staay
Biases in judgement of ambiguous stimuli, as measured in a judgement bias task, have been proposed as a measure of the valence of affective states in animals. We recently suggested a list of criteria for behavioural tests of emotion, one of them stating that responses on the task used to assess emotionality should not be confounded by, among others, differences in learning capacity, i.e. must not simply reflect the cognitive capacity of an animal. We performed three independent studies in which pigs acquired a spatial holeboard task, a free choice maze which simultaneously assesses working memory and reference memory...
July 2017: Animal Cognition
https://www.readbyqxmd.com/read/28493346/no-effect-of-targeted-memory-reactivation-during-slow-wave-sleep-on-emotional-recognition-memory
#10
Jennifer E Ashton, Scott A Cairney, M Gareth Gaskell
Recent work has suggested that the benefits of sleep for memory consolidation are enhanced for highly salient (versus non-salient) memories. Using a technique known as targeted memory reactivation, it is possible to selectively strengthen newly learned memories by re-exposing the sleeping brain to auditory cues. The aim of the current study was to examine whether emotionally salient memories are also more responsive to targeted memory reactivation in slow-wave sleep than neutral memories. In an initial training phase, participants memorised emotionally negative and neutral pictures, which were each paired with a semantically related sound...
May 11, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28492912/auditory-verbal-working-memory-as-a-predictor-of-speech-perception-in-modulated-maskers-in-listeners-with-normal-hearing
#11
Rebecca E Millman, Sven L Mattys
Purpose: Background noise can interfere with our ability to understand speech. Working memory capacity (WMC) has been shown to contribute to the perception of speech in modulated noise maskers. WMC has been assessed with a variety of auditory and visual tests, often pertaining to different components of working memory. This study assessed the relationship between speech perception in modulated maskers and components of auditory verbal working memory (AVWM) over a range of signal-to-noise ratios...
May 24, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28485649/loudness-and-annoyance-of-disturbing-sounds-perception-by-normal-hearing-subjects
#12
Åsa Skagerstrand, Susanne Köbler, Stefan Stenfelt
OBJECTIVE: Sounds in the daily environment may cause loudness and annoyance. The present study investigated the perception of loudness and annoyance for eight different sounds present in a daily sound environment and at nine different levels varying by ±20 dB around the recorded level. The outcomes were related to tests of participants' auditory and cognitive abilities. DESIGN: The participants undertook auditory and working memory (WM) tests prior to ratings of everyday sounds previously shown to be disturbing for persons with hearing impairment (hearing aid users)...
May 9, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28484411/age-related-interference-between-the-selection-of-input-output-modality-mappings-and-postural-control-a-pilot-study
#13
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/28453532/feasibility-of-computerized-working-memory-training-in-individuals-with-huntington-disease
#14
Mahsa Sadeghi, Emily Barlow-Krelina, Clare Gibbons, Komal T Shaikh, Wai Lun Alan Fung, Wendy S Meschino, Christine Till
OBJECTIVES: Huntington disease (HD) is associated with a variety of cognitive deficits, with prominent difficulties in working memory (WM). WM deficits are notably compromised in early-onset and prodromal HD patients. This study aimed to determine the feasibility of a computerized WM training program (Cogmed QM), novel to the HD population. METHODS: Nine patients, aged 26-62, with early stage HD underwent a 25-session (5 days/week for 5 weeks) WM training program (Cogmed QM)...
2017: PloS One
https://www.readbyqxmd.com/read/28451631/gaba-b-agonist-baclofen-normalizes-auditory-evoked-neural-oscillations-and-behavioral-deficits-in-the-fmr1-knockout-mouse-model-of-fragile-x-syndrome
#15
D Sinclair, R Featherstone, M Naschek, J Nam, A Du, S Wright, K Pance, O Melnychenko, R Weger, S Akuzawa, M Matsumoto, S J Siegel
Fragile X syndrome is a genetic condition resulting from FMR1 gene mutation that leads to intellectual disability, autism-like symptoms, and sensory hypersensitivity. Arbaclofen, a GABA-B agonist, has shown efficacy in some individuals with FXS but has become unavailable after unsuccessful clinical trials, prompting interest in publicly available, racemic baclofen. The present study investigated whether racemic baclofen can remediate abnormalities of neural circuit function, sensory processing, and behavior in Fmr1 knockout mice, a rodent model of fragile X syndrome...
January 2017: ENeuro
https://www.readbyqxmd.com/read/28446207/memory-is-preserved-in-older-adults-taking-at1-receptor-blockers
#16
Jean K Ho, Daniel A Nation
BACKGROUND: Prior work suggests that some but not all antihypertensive treatments may benefit cognition and risk for Alzheimer's disease, independent of stroke. Angiotensin II receptor blockers (ARBs) have been highlighted as one antihypertensive drug class that may confer greatest benefit. METHODS: The participants comprised 1626 nondemented adults, aged 55-91 years, recruited from Alzheimer's Disease Neuroimaging Initiative sites. Three groups were compared: ARB users (HTN-ARBs), other antihypertensive drug users (HTN-Other), and normotensives...
April 26, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28439225/magnitude-codes-for-cross-modal-working-memory-in-the-primate-frontal-association-cortex
#17
REVIEW
Andreas Nieder
Quantitative features of stimuli may be ordered along a magnitude continuum, or line. Magnitude refers to parameters of different types of stimulus properties. For instance, the frequency of a sound relates to sensory and continuous stimulus properties, whereas the number of items in a set is an abstract and discrete property. In addition, within a stimulus property, magnitudes need to be processed not only in one modality, but across multiple modalities. In the sensory domain, for example, magnitude applies to both to the frequency of auditory sounds and tactile vibrations...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28431691/sensorimotor-activity-measured-via-oscillations-of-eeg-mu-rhythms-in-speech-and-non-speech-discrimination-tasks-with-and-without-segmentation-demands
#18
David Thornton, Ashley W Harkrider, David Jenson, Tim Saltuklaroglu
Better understanding of the role of sensorimotor processing in speech and non-speech segmentation can be achieved with more temporally precise measures. Twenty adults made same/different discriminations of speech and non-speech stimuli pairs, with and without segmentation demands. Independent component analysis of 64-channel EEG data revealed clear sensorimotor mu components, with characteristic alpha and beta peaks, localized to premotor regions in 70% of participants.Time-frequency analyses of mu components from accurate trials showed that (1) segmentation tasks elicited greater event-related synchronization immediately following offset of the first stimulus, suggestive of inhibitory activity; (2) strong late event-related desynchronization in all conditions, suggesting that working memory/covert replay contributed substantially to sensorimotor activity in all conditions; (3) stronger beta desynchronization in speech versus non-speech stimuli during stimulus presentation, suggesting stronger auditory-motor transforms for speech versus non-speech stimuli...
April 18, 2017: Brain and Language
https://www.readbyqxmd.com/read/28418327/auditory-and-cognitive-factors-associated-with-speech-in-noise-complaints-following-mild-traumatic-brain-injury
#19
Eric C Hoover, Pamela E Souza, Frederick J Gallun
BACKGROUND: Auditory complaints following mild traumatic brain injury (MTBI) are common, but few studies have addressed the role of auditory temporal processing in speech recognition complaints. PURPOSE: In this study, deficits understanding speech in a background of speech noise following MTBI were evaluated with the goal of comparing the relative contributions of auditory and nonauditory factors. RESEARCH DESIGN: A matched-groups design was used in which a group of listeners with a history of MTBI were compared to a group matched in age and pure-tone thresholds, as well as a control group of young listeners with normal hearing (YNH)...
April 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28416117/rapid-spatial-learning-controls-instinctive-defensive-behavior-in-mice
#20
Ruben Vale, Dominic A Evans, Tiago Branco
Instinctive defensive behaviors are essential for animal survival. Across the animal kingdom, there are sensory stimuli that innately represent threat and trigger stereotyped behaviors such as escape or freezing [1-4]. While innate behaviors are considered to be hard-wired stimulus-responses [5], they act within dynamic environments, and factors such as the properties of the threat [6-9] and its perceived intensity [1, 10, 11], access to food sources [12-14], and expectations from past experience [15, 16] have been shown to influence defensive behaviors, suggesting that their expression can be modulated...
May 8, 2017: Current Biology: CB
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