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https://www.readbyqxmd.com/read/28315696/auditory-deficits-in-amusia-extend-beyond-poor-pitch-perception
#1
Kelly L Whiteford, Andrew J Oxenham
Congenital amusia is a music perception disorder believed to reflect a deficit in fine-grained pitch perception and/or short-term or working memory for pitch. Because most measures of pitch perception include memory and segmentation components, it has been difficult to determine the true extent of pitch processing deficits in amusia. It is also unclear whether pitch deficits persist at frequencies beyond the range of musical pitch. To address these questions, experiments were conducted with amusics and matched controls, manipulating both the stimuli and the task demands...
March 15, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28302161/cognitive-profile-in-prodromal-dementia-with-lewy-bodies
#2
Jennifer Kemp, Nathalie Philippi, Clélie Phillipps, Catherine Demuynck, Timothée Albasser, Catherine Martin-Hunyadi, Catherine Schmidt-Mutter, Benjamin Cretin, Frédéric Blanc
BACKGROUND: Cortical and subcortical cognitive impairments have been found in dementia with Lewy bodies (DLB). Roughly, they comprise visuoconstructive and executive dysfunction, whereas memory would remain relatively spared. However, the cognitive profile of patients with prodromal DLB remains poorly illustrated to date. METHODS: We included 37 patients with prodromal DLB (age 67.2 ± 8.6 years, 18 men, Mini Mental State Examination [MMSE] score 27.4 ± 2) and 29 healthy control subjects (HCs; age 68...
March 16, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28295187/working-memory-moderates-the-effect-of-the-integrative-process-of-implicit-and-explicit-autonomous-motivation-on-academic-achievement
#3
Alexandre Gareau, Patrick Gaudreau
In previous research, autonomous motivation (AM) has been found to be associated with school achievement, but the relation has been largely heterogeneous across studies. AM has typically been assessed with explicit measures such as self-report questionnaires. Recent self-determination theory (SDT) research has suggested that converging implicit and explicit measures can be taken to characterize the integrative process in SDT. Drawing from dual-process theories, we contended that explicit AM is likely to promote school achievement when it is part of an integrated cognitive system that combines easily accessible mental representations (i...
March 10, 2017: British Journal of Psychology
https://www.readbyqxmd.com/read/28291777/adolescent-but-not-adult-ethanol-binge-drinking-modulates-cocaine-withdrawal-symptoms-in-mice
#4
Juan Carlos Ledesma, Maria A Aguilar, Pablo Giménez-Gómez, José Miñarro, Marta Rodríguez-Arias
BACKGROUND: Ethanol (EtOH) binge drinking is an increasingly common behavior among teenagers that induces long-lasting neurobehavioral alterations in adulthood. An early history of EtOH abuse during adolescence is highly correlated with cocaine addiction in adulthood. Abstinence of cocaine abuse can cause psychiatric symptoms, such as anxiety, psychosis, depression, and cognitive impairments. This study assessed the consequences of adolescent exposure to EtOH on the behavioral alterations promoted by cocaine withdrawal in adulthood...
2017: PloS One
https://www.readbyqxmd.com/read/28289920/the-early-presentation-of-dementia-in-people-with-down-syndrome-a-systematic-review-of-longitudinal-studies
#5
REVIEW
Bianca Alexandra Lautarescu, Anthony John Holland, Shahid H Zaman
Adults with Down syndrome (DS) are at a very high risk of developing early onset Alzheimer's disease (AD) due to trisomy of chromosome 21. AD is preceded by a prolonged prodromal "pre-clinical" phase presenting with clinical features that do not fulfil the diagnostic criteria for AD. It is important to clinically characterise this prodromal stage to help early detection of the disease as neuropathology of AD is almost universal by the fifth decade in DS. There is a lack of knowledge of the trajectory of decline associated with the onset of dementia in this population and early signs may be overlooked or misdiagnosed, negatively affecting the quality of life of those affected and the use of early pharmacological or psychosocial interventions...
March 13, 2017: Neuropsychology Review
https://www.readbyqxmd.com/read/28288948/memory-and-depressive-effect-on-male-and-female-swiss-mice-exposed-to-tannery-effluent
#6
Abraão Tiago Batista Guimarães, Raíssa de Oliveira Ferreira, Aline Sueli de Lima Rodrigues, Guilherme Malafaia
Although tannery industries generate substantial profits to the countries they are located in, they work with one of the most environmentally harmful human activities. Tannery effluents (TE) are highly toxic; thus, their improper release into water bodies may cause severe problems to individuals depending on this water. Therefore, the aim of the current study is to assess the effects of oral exposure to TE on the anxiety-, memory deficit- and depression-predictive behaviors in male and female Swiss adult mice...
March 10, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28287787/training-working-memory-in-older-adults-is-there-an-advantage-of-using-strategies
#7
Erika Borella, Barbara Carretti, Roberta Sciore, Emanuela Capotosto, Laurence Taconnat, Cesare Cornoldi, Rossana De Beni
The purpose of the present study was to test the efficacy of a working memory (WM) training in elderly people, and to compare the effects of a WM training based on an adaptive procedure with one combining the same procedure with the use of a strategy, based on the construction of visual mental images. Eighteen older adults received training with a WM task (the WM group), another 18 received the same WM training and were also taught to use a visual imagery strategy (the WM + Strategy group), and another 18 served as active controls...
March 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28287761/familiarity-speeds-up-visual-short-term-memory-consolidation
#8
Weizhen Xie, Weiwei Zhang
Existing long-term memory (LTM) can boost the number of retained representations over a short delay in visual short-term memory (VSTM). However, it is unclear whether and how prior LTM affects the initial process of transforming fragile sensory inputs into durable VSTM representations (i.e., VSTM consolidation). The consolidation speed hypothesis predicts faster consolidation for familiar relative to unfamiliar stimuli. Alternatively, the perceptual boost hypothesis predicts that the advantage in perceptual processing of familiar stimuli should add a constant boost for familiar stimuli during VSTM consolidation...
March 13, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28287166/pitch-discrimination-associated-with-phonological-awareness-evidence-from-congenital-amusia
#9
Yanan Sun, Xuejing Lu, Hao Tam Ho, William Forde Thompson
Research suggests that musical skills are associated with phonological abilities. To further investigate this association, we examined whether phonological impairments are evident in individuals with poor music abilities. Twenty individuals with congenital amusia and 20 matched controls were assessed on a pure-tone pitch discrimination task, a rhythm discrimination task, and four phonological tests. Amusic participants showed deficits in discriminating pitch and discriminating rhythmic patterns that involve a regular beat...
March 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28286265/vicarious-extinction-learning-during-reconsolidation-neutralizes-fear-memory
#10
Armita Golkar, Cathelijn Tjaden, Merel Kindt
BACKGROUND: Previous studies have suggested that fear memories can be updated when recalled, a process referred to as reconsolidation. Given the beneficial effects of model-based safety learning (i.e. vicarious extinction) in preventing the recovery of short-term fear memory, we examined whether consolidated long-term fear memories could be updated with safety learning accomplished through vicarious extinction learning initiated within the reconsolidation time-window. We assessed this in a final sample of 19 participants that underwent a three-day within-subject fear-conditioning design, using fear-potentiated startle as our primary index of fear learning...
February 22, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28285415/naag-peptidase-inhibitors-act-via-mglur3-animal-models-of-memory-alzheimer-s-and-ethanol-intoxication
#11
Rafal T Olszewski, Karolina J Janczura, Tomasz Bzdega, Elise K Der, Faustino Venzor, Brennen O'Rourke, Timothy J Hark, Kirsten E Craddock, Shankar Balasubramanian, Charbel Moussa, Joseph H Neale
Glutamate carboxypeptidase II (GCPII) inactivates the peptide neurotransmitter N-acetylaspartylglutamate (NAAG) following synaptic release. Inhibitors of GCPII increase extracellular NAAG levels and are efficacious in animal models of clinical disorders via NAAG activation of a group II metabotropic glutamate receptor. mGluR2 and mGluR3 knock-out (ko) mice were used to test the hypothesis that mGluR3 mediates the activity of GCPII inhibitors ZJ43 and 2-PMPA in animal models of memory and memory loss. Short- (1...
March 11, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28283594/cued-memory-decline-in-biomarker-defined-preclinical-alzheimer-disease
#12
Kathryn V Papp, Dorene M Rentz, Elizabeth C Mormino, Aaron P Schultz, Rebecca E Amariglio, Yakeel Quiroz, Keith A Johnson, Reisa A Sperling
OBJECTIVE: To determine whether a decline in cued recall is observable in the preclinical stage of Alzheimer disease (AD) in clinically normal older adults with elevated β-amyloid (Aβ) burden on PET imaging. METHODS: Clinically normal older adults underwent baseline neuroimaging (PET to assess Aβ(+/-) status and MRI) and annual neuropsychological testing. Cox proportional hazards models were used to assess the relative risk of cued memory decline (drop of 1, 2, 3, or 4 points on the total score of the Free and Cued Selective Reminding Test) in relation to neuroimaging measures, functional status, age, sex, and education...
March 10, 2017: Neurology
https://www.readbyqxmd.com/read/28279669/contribution-of-visuospatial-attention-short-term-memory-and-executive-functions-to-performance-in-number-interval-bisection
#13
Mariagrazia Ranzini, Katia Carbè, Wim Gevers
Number interval bisection consists of estimating the mid-number within a pair (1-9=>5). Healthy adults and right-brain damage patients can show biased performance in this task, underestimating and overestimating the mid-number, respectively. The role of visuospatial attention during this task, and its interplay with other cognitive abilities (e.g., working memory) is still object of debate. In this study we explored the relation between visuospatial attention and individual differences in working memory and executive functions during number interval bisection...
March 6, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28275376/immunological-balance-is-associated-with-clinical-outcome-after-autologous-hematopoietic-stem-cell-transplantation-in-type-1-diabetes
#14
Kelen C R Malmegrim, Júlia T C de Azevedo, Lucas C M Arruda, Joana R F Abreu, Carlos E B Couri, Gislane L V de Oliveira, Patricia V B Palma, Gabriela T Scortegagna, Ana B P L Stracieri, Daniela A Moraes, Juliana B E Dias, Fabiano Pieroni, Renato Cunha, Luiza Guilherme, Nathália M Santos, Milton C Foss, Dimas T Covas, Richard K Burt, Belinda P Simões, Júlio C Voltarelli, Bart O Roep, Maria C Oliveira
Autologous hematopoietic stem cell transplantation (AHSCT) increases C-peptide levels and induces insulin independence in patients with type 1 diabetes. This study aimed to investigate how clinical outcomes may associate with the immunological status, especially concerning the balance between immunoregulation and autoreactivity. Twenty-one type 1 diabetes patients were monitored after AHSCT and assessed every 6 months for duration of insulin independence, C-peptide levels, frequencies of islet-specific autoreactive CD8(+) T cells (CTL), regulatory lymphocyte subsets, thymic function, and T-cell repertoire diversity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28274831/effects-of-prefrontal-bipolar-and-high-definition-transcranial-direct-current-stimulation-on-cortical-reactivity-and-working-memory-in-healthy-adults
#15
Aron T Hill, Nigel C Rogasch, Paul B Fitzgerald, Kate E Hoy
Transcranial direct current stimulation (tDCS) is a well-recognised neuromodulatory technology which has been shown to induce short-lasting changes in motor-cortical excitability. The recent and rapid expansion of tDCS into the cognitive domain, however, necessitates deeper mechanistic understanding of its neurophysiological effects over non-motor brain regions. The present study utilised transcranial magnetic stimulation combined with electroencephalography (TMS-EEG) to probe the immediate and longer-term effects of both a bipolar (BP-tDCS) and more focal 4×1 High-Definition tDCS (HD-tDCS) montage applied over the left DLPFC on TMS-evoked potentials (TEPs) and oscillations in 19 healthy adult participants...
March 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28259806/awake-long-term-intranasal-insulin-treatment-does-not-affect-object-memory-odor-discrimination-or-reversal-learning-in-mice
#16
Genevieve A Bell, Debra Ann Fadool
Intranasal insulin delivery is currently being used in clinical trials to test for improvement in human memory and cognition, and in particular, for lessening memory loss attributed to neurodegenerative diseases. Studies have reported the effects of short-term intranasal insulin treatment on various behaviors, but less have examined long-term effects. The olfactory bulb contains the highest density of insulin receptors in conjunction with the highest level of insulin transport within the brain. Previous research from our laboratory has demonstrated that acute insulin intranasal delivery (IND) enhanced both short- and long-term memory as well as increased two-odor discrimination in a two-choice paradigm...
March 2, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28256680/-treatments-for-children-and-adolescents-with-attention-deficit-hyperactivity-disorder-what-is-the-evidence-base-to-date
#17
S Cortese, R Rosello-Miranda
The evidence base from empirical studies is one of the elements, along with patients' preference and consideration of particular clinical state and circumstances, that should be taken into account in the process of clinical decision making. This paper provides an overview of the current evidence base for the treatment of attention-deficit-hyperactivity disorder (ADHD), drawing on the results of the most recent meta-analyses of randomized controlled trials assessing the pharmacological and non-pharmacological treatment of ADHD...
February 24, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28215510/short-term-treatment-with-flumazenil-restores-long-term-object-memory-in-a-mouse-model-of-down-syndrome
#18
Damien Colas, Bayarsaikhan Chuluun, Craig C Garner, H Craig Heller
Down syndrome (DS) is a common genetic cause of intellectual disability yet no pro-cognitive drug therapies are approved for human use. Mechanistic studies in a mouse model of DS (Ts65Dn mice) demonstrate that impaired cognitive function is due to excessive neuronal inhibitory tone. These deficits are normalized by chronic, short-term low doses of GABAA receptor (GABAAR) antagonists in adult animals, but none of the compounds investigated are approved for human use. We explored the therapeutic potential of flumazenil (FLUM), a GABAAR antagonist working at the benzodiazepine binding site that has FDA approval...
February 12, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28215191/is-computerized-cognitive-testing-useful-in-children-and-adolescents-with-moderate-to-severe-traumatic-brain-injury
#19
Vickie Plourde, Brian L Brooks
OBJECTIVES: Children and adolescents with moderate-to-severe traumatic brain injury (TBI) present with short and long-term neuropsychological deficits following their injury. The aim of this study was to investigate the utility of a brief computerized test battery for evaluating cognitive functioning sub-acutely following a TBI. METHODS: Participants (n=33) sustained a moderate-to-severe TBI, were between 8 and 18 years old, and were assessed using CNS Vital Signs (CNSVS) within 6 months post-injury (median=0...
February 20, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28207407/deep-pain-exploiting-long-short-term-memory-networks-for-facial-expression-classification
#20
Pau Rodriguez, Guillem Cucurull, Jordi Gonalez, Josep M Gonfaus, Kamal Nasrollahi, Thomas B Moeslund, F Xavier Roca
Pain is an unpleasant feeling that has been shown to be an important factor for the recovery of patients. Since this is costly in human resources and difficult to do objectively, there is the need for automatic systems to measure it. In this paper, contrary to current state-of-the-art techniques in pain assessment, which are based on facial features only, we suggest that the performance can be enhanced by feeding the raw frames to deep learning models, outperforming the latest state-of-the-art results while also directly facing the problem of imbalanced data...
February 9, 2017: IEEE Transactions on Cybernetics
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