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https://www.readbyqxmd.com/read/29222722/binaural-auditory-beats-affect-long-term-memory
#1
Miguel Garcia-Argibay, Miguel A Santed, José M Reales
The presentation of two pure tones to each ear separately with a slight difference in their frequency results in the perception of a single tone that fluctuates in amplitude at a frequency that equals the difference of interaural frequencies. This perceptual phenomenon is known as binaural auditory beats, and it is thought to entrain electrocortical activity and enhance cognition functions such as attention and memory. The aim of this study was to determine the effect of binaural auditory beats on long-term memory...
December 8, 2017: Psychological Research
https://www.readbyqxmd.com/read/29222526/numerical-value-biases-sound-localization
#2
Edward J Golob, Jörg Lewald, Stephan Getzmann, Jeffrey R Mock
Speech recognition starts with representations of basic acoustic perceptual features and ends by categorizing the sound based on long-term memory for word meaning. However, little is known about whether the reverse pattern of lexical influences on basic perception can occur. We tested for a lexical influence on auditory spatial perception by having subjects make spatial judgments of number stimuli. Four experiments used pointing or left/right 2-alternative forced choice tasks to examine perceptual judgments of sound location as a function of digit magnitude (1-9)...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29218024/impact-of-spatial-and-verbal-short-term-memory-load-on-auditory-spatial-attention-gradients
#3
Edward J Golob, Jenna Winston, Jeffrey R Mock
Short-term memory load can impair attentional control, but prior work shows that the extent of the effect ranges from being very general to very specific. One factor for the mixed results may be reliance on point estimates of memory load effects on attention. Here we used auditory attention gradients as an analog measure to map-out the impact of short-term memory load over space. Verbal or spatial information was maintained during an auditory spatial attention task and compared to no-load. Stimuli were presented from five virtual locations in the frontal azimuth plane, and subjects focused on the midline...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29216235/association-between-memory-impairment-and-brain-metabolite-concentrations-in-north-korean-refugees-with-posttraumatic-stress-disorder
#4
Jung Eun Shin, Chi-Hoon Choi, Jong Min Lee, Jun Soo Kwon, So Hee Lee, Hyun-Chung Kim, Na Young Han, Soo-Hee Choi, So Young Yoo
Individuals with posttraumatic stress disorder (PTSD) had experiences of enormous psychological stress that can result in neurocognitive and neurochemical changes. To date, the causal relationship between them remains unclear. The present study is to investigate the association between neurocognitive characteristics and neural metabolite concentrations in North Korean refugees with PTSD. A total of 53 North Korean refugees with or without PTSD underwent neurocognitive function tests. For neural metabolite scanning, magnetic resonance spectroscopy of the hippocampus and anterior cingulate cortex (ACC) has been conducted...
2017: PloS One
https://www.readbyqxmd.com/read/29213506/symptoms-of-depression-in-patients-with-mild-cognitive-impairment-in-parkinson-s-disease
#5
Ana Lara Soares Blum Malak, Luiz Felipe Vasconcellos, João Santos Pereira, Denise Vieira Greca, Manuela Cruz, Heloisa Veiga Dias Alves, Mariana Sptiz, Helenice Charchat-Fichman
Objective: To investigate the most frequent depressive symptoms and their association with cognition in Parkinson's disease (PD) patients with mild cognitive impairment (MCI). Methods: 48 patients with PD and 44 controls (CG), aged between 50 and 80 years and with at least 4 years of formal education, all with MCI and none diagnosed with depression, were assessed. Patients and controls were matched for age, education, and Mini-Mental State Examination (MMSE) score...
April 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29210512/auditory-evoked-potentials-in-children-and-adolescents-with-down-syndrome
#6
Letícia Gregory, Rafael F M Rosa, Paulo R G Zen, Pricila Sleifer
Down syndrome, or trisomy 21, is the most common genetic alteration in humans. The syndrome presents with several features, including hearing loss and changes in the central nervous system, which may affect language development in children and lead to school difficulties. The present study aimed to investigate group differences in the central auditory system by long-latency auditory evoked potentials and cognitive potential. An assessment of 23 children and adolescents with Down syndrome was performed, and a control group composed of 43 children and adolescents without genetic and/or neurological changes was used for comparison...
December 6, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29209230/balanced-noise-evoked-excitation-and-inhibition-in-awake-mice-ca3
#7
Ningqian Wang, Xiong Gan, Yun Liu, Zhongju Xiao
The hippocampus is known as a neuronal structure involved in learning, memory and spatial navigation using multi-sensory cues. However, the basic features of its response to acoustic stimuli without any behavioral tasks (conditioning) remains poorly studied. Here, we investigated the CA3 response to auditory stimuli using in vivo loose-patch recordings in awake and anesthetized C57 mice. Different acoustic stimuli in addition to broadband noise such as click, FM sound and pure tone were applied to test the response of CA3 in awake animals...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29208070/neuropsychological-outcomes-in-chd-beyond-childhood-a-meta-analysis
#8
Rónán Mills, Christopher G McCusker, Chris Tennyson, Donncha Hanna
BACKGROUND: Risk for neurodevelopmental delay in infants and children with CHD is well established, but longer-term outcomes are equivocal. A meta-analysis was conducted to establish whether cognitive deficits remain beyond childhood - into teenage and young adult years. Methods and results A total of 18 unique samples, involving adolescents, teenagers, and adults with CHD significant enough to require invasive intervention, and sourced through searches of Web of Science, MEDLINE, CINAHL Plus, and PsychInfo, met the inclusion criteria...
December 6, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29205095/lexical-access-ability-and-cognitive-predictors-of-speech-recognition-in-noise-in-adult-cochlear-implant-users
#9
Marre W Kaandorp, Cas Smits, Paul Merkus, Joost M Festen, S Theo Goverts
Not all of the variance in speech-recognition performance of cochlear implant (CI) users can be explained by biographic and auditory factors. In normal-hearing listeners, linguistic and cognitive factors determine most of speech-in-noise performance. The current study explored specifically the influence of visually measured lexical-access ability compared with other cognitive factors on speech recognition of 24 postlingually deafened CI users. Speech-recognition performance was measured with monosyllables in quiet (consonant-vowel-consonant [CVC]), sentences-in-noise (SIN), and digit-triplets in noise (DIN)...
January 2017: Trends in Hearing
https://www.readbyqxmd.com/read/29202656/clinical-and-cognitive-significance-of-auditory-sensory-processing-deficits-in-schizophrenia
#10
Holly K Hamilton, Terrance J Williams, Joseph Ventura, Leland J Jasperse, Emily M Owens, Gregory A Miller, Kenneth L Subotnik, Keith H Nuechterlein, Cindy M Yee
OBJECTIVE: Although patients with schizophrenia exhibit impaired suppression of the P50 event-related brain potential in response to the second of two identical auditory stimuli during a paired-stimulus paradigm, uncertainty remains over whether this deficit in inhibitory gating of auditory sensory processes has relevance for patients' clinical symptoms or cognitive performance. The authors examined associations between P50 suppression deficits and several core features of schizophrenia to address this gap...
December 5, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/29199957/the-ampa-receptor-associated-protein-shisa7-regulates-hippocampal-synaptic-function-and-contextual-memory
#11
Leanne J M Schmitz, Remco V Klaassen, Marta Ruiperez-Alonso, Azra Elia Zamri, Jasper Stroeder, Priyanka Rao-Ruiz, Johannes C Lodder, Rolinka J van der Loo, Huib D Mansvelder, August B Smit, Sabine Spijker
Glutamatergic synapses rely on AMPA receptors (AMPARs) for fast synaptic transmission and plasticity. AMPAR auxiliary proteins regulate receptor trafficking, and modulate receptor mobility and its biophysical properties. The AMPAR auxiliary protein Shisa7 (CKAMP59) has been shown to interact with AMPARs in artificial expression systems, but it is unknown whether Shisa7 has a functional role in glutamatergic synapses. We show that Shisa7 physically interacts with synaptic AMPARs in mouse hippocampus. Shisa7 gene deletion resulted in faster AMPAR currents in CA1 synapses, without affecting its synaptic expression...
December 4, 2017: ELife
https://www.readbyqxmd.com/read/29198217/what-does-it-take-to-search-organized-the-cognitive-correlates-of-search-organization-during-cancellation-after-stroke
#12
Antonia F Ten Brink, Johanna M A Visser-Meily, Tanja C W Nijboer
OBJECTIVES: Stroke could lead to deficits in organization of visual search. Cancellation tests are frequently used in standard neuropsychological assessment and appear suitable to measure search organization. The current aim was to evaluate which cognitive functions are associated with cancellation organization measures after stroke. METHODS: Stroke patients admitted to inpatient rehabilitation were included in this retrospective study. We performed exploratory factor analyses to explore cognitive domains...
December 4, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/29186179/nonword-repetition-in-adults-who-stutter-the-effects-of-stimuli-stress-and-auditory-orthographic-cues
#13
Geoffrey A Coalson, Courtney T Byrd
PURPOSE: Adults who stutter (AWS) are less accurate in their immediate repetition of novel phonological sequences compared to adults who do not stutter (AWNS). The present study examined whether manipulation of the following two aspects of traditional nonword repetition tasks unmask distinct weaknesses in phonological working memory in AWS: (1) presentation of stimuli with less-frequent stress patterns, and (2) removal of auditory-orthographic cues immediately prior to response. METHOD: Fifty-two participants (26 AWS, 26 AWNS) produced 12 bisyllabic nonwords in the presence of corresponding auditory-orthographic cues (i...
2017: PloS One
https://www.readbyqxmd.com/read/29186146/auditory-and-cognitive-performance-in-elderly-musicians-and-nonmusicians
#14
Massimo Grassi, Chiara Meneghetti, Enrico Toffalini, Erika Borella
Musicians represent a model for examining brain and behavioral plasticity in terms of cognitive and auditory profile, but few studies have investigated whether elderly musicians have better auditory and cognitive abilities than nonmusicians. The aim of the present study was to examine whether being a professional musician attenuates the normal age-related changes in hearing and cognition. Elderly musicians still active in their profession were compared with nonmusicians on auditory performance (absolute threshold, frequency intensity, duration and spectral shape discrimination, gap and sinusoidal amplitude-modulation detection), and on simple (short-term memory) and more complex and higher-order (working memory [WM] and visuospatial abilities) cognitive tasks...
2017: PloS One
https://www.readbyqxmd.com/read/29185490/aberrant-brain-response-after-auditory-deviance-in-ptsd-compared-to-trauma-controls-an-eeg-study
#15
Katrin A Bangel, Susanne van Buschbach, Dirk J A Smit, Ali Mazaheri, Miranda Olff
Part of the symptomatology of post-traumatic stress disorder (PTSD) are alterations in arousal and reactivity which could be related to a maladaptive increase in the automated sensory change detection system of the brain. In the current EEG study we investigated whether the brain's response to a simple auditory sensory change was altered in patients with PTSD relative to trauma-exposed matched controls who did not develop the disorder. Thirteen male PTSD patients and trauma-exposed controls matched for age and educational level were presented with regular auditory pure tones (1000 Hz, 200 ms duration), with 11% of the tones deviating in both duration (50 ms) and frequency (1200 Hz) while watching a silent movie...
November 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29184482/identification-of-candidate-allosteric-modulators-of-the-m1-muscarinic-acetylcholine-receptor-which-may-improve-vagus-nerve-stimulation-in-chronic-tinnitus
#16
Tijana Bojić, Vladimir R Perović, Milan Senćanski, Sanja Glišić
Chronic tinnitus is characterized by neuroplastic changes of the auditory cortex. A promising method for therapy of chronic tinnitus is vagus nerve stimulation (VNS) combined with auditory stimulation. The principle of VNS is reversal of pathological neuroplastic changes of the auditory cortex toward physiological neural activity and synchronicity. The VNS mechanism of action in chronic tinnitus patients is prevailingly through the muscarinic neuromodulation of the auditory cortex by the activation of nc. basalis Meynerti...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29182947/low-level-neural-auditory-discrimination-dysfunctions-in-specific-language-impairment-a-review-on-mismatch-negativity-findings
#17
REVIEW
Teija Kujala, Miika Leminen
In specific language impairment (SLI), there is a delay in the child's oral language skills when compared with nonverbal cognitive abilities. The problems typically relate to phonological and morphological processing and word learning. This article reviews studies which have used mismatch negativity (MMN) in investigating low-level neural auditory dysfunctions in this disorder. With MMN, it is possible to tap the accuracy of neural sound discrimination and sensory memory functions. These studies have found smaller response amplitudes and longer latencies for speech and non-speech sound changes in children with SLI than in typically developing children, suggesting impaired and slow auditory discrimination in SLI...
October 24, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29174894/disruption-of-perceptual-learning-by-a-brief-practice-break
#18
David F Little, Yu-Xuan Zhang, Beverly A Wright
Some forms of associative learning require only a single experience to create a lasting memory [1, 2]. In contrast, perceptual learning often requires extensive practice within a day for performance to improve across days [3, 4]. This suggests that the requisite practice for durable perceptual learning is integrated throughout each day. If the total amount of daily practice is the only important variable, then a practice break within a day should not disrupt across-day improvement. To test this idea, we trained human listeners on an auditory frequency-discrimination task over multiple days and compared the performance of those who engaged in a single continuous practice session each day [4] with those who were given a 30-min break halfway through each practice session...
November 21, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29174302/the-interaction-of-pulse-width-and-current-intensity-on-the-extent-of-cortical-plasticity-evoked-by-vagus-nerve-stimulation
#19
Kristofer W Loerwald, Michael S Borland, Robert L Rennaker, Seth A Hays, Michael P Kilgard
BACKGROUND: Repeatedly pairing a tone with a brief burst of vagus nerve stimulation (VNS) results in a reorganization of primary auditory cortex (A1). The plasticity-enhancing and memory-enhancing effects of VNS follow an inverted-U response to stimulation intensity, in which moderate intensity currents yield greater effects than low or high intensity currents. It is not known how other stimulation parameters effect the plasticity-enhancing effects of VNS. OBJECTIVE: We sought to investigate the effect of pulse-width and intensity on VNS efficacy...
November 15, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29172568/tone-series-and-the-nature-of-working-memory-capacity-development
#20
Katherine M Clark, Kyle O Hardman, Todd R Schachtman, J Scott Saults, Bret A Glass, Nelson Cowan
Recent advances in understanding visual working memory, the limited information held in mind for use in ongoing processing, are extended here to examine auditory working memory development. Research with arrays of visual objects has shown how to distinguish the capacity, in terms of the number of objects retained, from the precision of the object representations. We adapt the technique to sequences of nonmusical tones, in an investigation including children (6-13 years, N = 84) and adults (26-50 years, N = 31)...
November 27, 2017: Developmental Psychology
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