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Dyslexia auditory

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https://www.readbyqxmd.com/read/29201552/atp2c2-and-dyx1c1-are-putative-modulators-of-dyslexia-related-mmr
#1
Bent Müller, Gesa Schaadt, Johannes Boltze, Frank Emmrich, Michael A Skeide, Nicole E Neef, Indra Kraft, Jens Brauer, Angela D Friederici, Holger Kirsten, Arndt Wilcke
Background: Dyslexia is a specific learning disorder affecting reading and spelling abilities. Its prevalence is ~5% in German-speaking individuals. Although the etiology of dyslexia largely remains to be determined, comprehensive evidence supports deficient phonological processing as a major contributing factor. An important prerequisite for phonological processing is auditory discrimination and, thus, essential for acquiring reading and spelling skills. The event-related potential Mismatch Response (MMR) is an indicator for auditory discrimination capabilities with dyslexics showing an altered late component of MMR in response to auditory input...
November 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29163246/screening-protocol-for-early-identification-of-brazilian-children-at-risk-for-dyslexia
#2
Giseli D Germano, Alexandra B P de C César, Simone A Capellini
Early identification of students at risk of dyslexia has been an educational challenge in the past years. This research had two main goals. First, we aimed to develop a screening protocol for early identification of Brazilian children at risk for dyslexia; second, we aimed to identify the predictive variables of this protocol using Principal Component Analysis. The major step involved in developing this protocol was the selection of variables, which were chosen based on the literature review and linguistic criteria...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29107746/how-many-deficits-in-the-same-dyslexic-brains-a-behavioural-and-fmri-assessment-of-comorbidity-in-adult-dyslexics
#3
Laura Danelli, Manuela Berlingeri, Gabriella Bottini, Nunzio A Borghese, Mirko Lucchese, Maurizio Sberna, Cathy J Price, Eraldo Paulesu
Dyslexia can have different manifestations: this has motivated different theories on its nature, on its underlying brain bases and enduring controversies on how to best treat it. The relative weight of the different manifestations has never been evaluated using both behavioural and fMRI measures, a challenge taken here to assess the major systems called into play in dyslexia by different theories. We found that adult well-compensated dyslexics were systematically impaired only in reading and in visuo-phonological tasks, while deficits for other systems (e...
September 22, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29045729/knockout-mice-for-dyslexia-susceptibility-gene-homologs-kiaa0319-and-kiaa0319l-have-unaffected-neuronal-migration-but-display-abnormal-auditory-processing
#4
Luiz G Guidi, Jane Mattley, Isabel Martinez-Garay, Anthony P Monaco, Jennifer F Linden, Antonio Velayos-Baeza, Zoltán Molnár
Developmental dyslexia is a neurodevelopmental disorder that affects reading ability caused by genetic and non-genetic factors. Amongst the susceptibility genes identified to date, KIAA0319 is a prime candidate. RNA-interference experiments in rats suggested its involvement in cortical migration but we could not confirm these findings in Kiaa0319-mutant mice. Given its homologous gene Kiaa0319L (AU040320) has also been proposed to play a role in neuronal migration, we interrogated whether absence of AU040320 alone or together with KIAA0319 affects migration in the developing brain...
December 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29024843/multisensory-integration-and-adhd-like-traits-evidence-for-an-abnormal-temporal-integration-window-in-adhd
#5
Maria Panagiotidi, Paul G Overton, Tom Stafford
Abnormalities in multimodal processing have been found in many developmental disorders such as autism and dyslexia. However, surprisingly little empirical work has been conducted to test the integrity of multisensory integration in Attention Deficit Hyperactivity Disorder (ADHD). The main aim of the present study was to examine links between symptoms of ADHD (as measured using a self-report scale in a healthy adult population) and the temporal aspects of multisensory processing. More specifically, a Simultaneity Judgement (SJ) and a Temporal Order Judgement (TOJ) task were used in participants with low and high levels of ADHD-like traits to measure the temporal integration window and Just-Noticeable Difference (JND) (respectively) between the timing of an auditory beep and a visual pattern presented over a broad range of stimulus onset asynchronies...
October 9, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28939535/reading-difficulties-and-the-pediatric-ophthalmologist
#6
EDITORIAL
Sheryl M Handler, Walter M Fierson
Approximately 20% of children have dyslexia, a language-based reading disability. A variation in language processing in the brain leads to a deficit in phonological (auditory) processing, which leads to problems in learning to read, write, and spell. Myths continue to exist regarding dyslexia and vision, and although eye and vision problems may coexist with dyslexia, they are not more prevalent than in the general population. Rarely vision problems may make reading at near very difficult and may masquerade as a learning problem or attention deficit disorder/attention deficit hyperactivity disorder...
September 19, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28938227/do-prereaders-auditory-processing-and-speech-perception-predict-later-literacy
#7
Sophie Vanvooren, Hanne Poelmans, Astrid De Vos, Pol Ghesquière, Jan Wouters
Developmental dyslexia has frequently been linked to deficits in auditory processing and speech perception. However, the presence and precise nature of these deficits and the direction of their relation with reading, remains debated. In this longitudinal study, 87 five-year-olds at high and low family risk for dyslexia were followed before and during different stages of reading acquisition. The processing of different auditory cues was investigated, together with performance on speech perception and phonology and reading...
September 19, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28863035/same-or-different-the-overlap-between-children-with-auditory-processing-disorders-and-children-with-other-developmental-disorders-a-systematic-review
#8
Ellen de Wit, Pim van Dijk, Sandra Hanekamp, Margot I Visser-Bochane, Bert Steenbergen, Cees P van der Schans, Margreet R Luinge
OBJECTIVES: Children diagnosed with auditory processing disorders (APD) experience difficulties in auditory functioning and with memory, attention, language, and reading tasks. However, it is not clear whether the behavioral characteristics of these children are distinctive from the behavioral characteristics of children diagnosed with a different developmental disorder, such as specific language impairment (SLI), dyslexia, attention-deficit hyperactivity disorder (ADHD), learning disorder (LD), or autism spectrum disorder...
August 31, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28834383/visual-motion-and-rapid-auditory-processing-are-solid-endophenotypes-of-developmental-dyslexia
#9
Sara Mascheretti, Simone Gori, Vittoria Trezzi, Milena Ruffino, Andrea Facoetti, Cecilia Marino
Although a genetic component is known to have an important role in the etiology of developmental dyslexia, we are far from understanding the molecular etiopathogenetic pathways. Reduced measures of neurobiological functioning related to reading (dis)ability, i.e., endophenotypes, are promising targets for gene finding and the elucidation of the underlying mechanisms. In a sample of 100 nuclear families with developmental dyslexia (229 offspring) and 83 unrelated typical readers, we tested whether a set of well-established, cognitive phenotypes related to developmental dyslexia (i...
August 17, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28747870/neural-entrainment-and-sensorimotor-synchronization-to-the-beat-in-children-with-developmental-dyslexia-an-eeg-study
#10
Lincoln J Colling, Hannah L Noble, Usha Goswami
Tapping in time to a metronome beat (hereafter beat synchronization) shows considerable variability in child populations, and individual differences in beat synchronization are reliably related to reading development. Children with developmental dyslexia show impairments in beat synchronization. These impairments may reflect deficiencies in auditory perception of the beat which in turn affect auditory-motor mapping, or may reflect an independent motor deficit. Here, we used a new methodology in EEG based on measuring beat-related steady-state evoked potentials (SS-EPs, Nozaradan et al...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28725022/action-video-games-improve-reading-abilities-and-visual-to-auditory-attentional-shifting-in-english-speaking-children-with-dyslexia
#11
Sandro Franceschini, Piergiorgio Trevisan, Luca Ronconi, Sara Bertoni, Susan Colmar, Kit Double, Andrea Facoetti, Simone Gori
Dyslexia is characterized by difficulties in learning to read and there is some evidence that action video games (AVG), without any direct phonological or orthographic stimulation, improve reading efficiency in Italian children with dyslexia. However, the cognitive mechanism underlying this improvement and the extent to which the benefits of AVG training would generalize to deep English orthography, remain two critical questions. During reading acquisition, children have to integrate written letters with speech sounds, rapidly shifting their attention from visual to auditory modality...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28723907/auditory-and-visual-distractors-disrupt-multisensory-temporal-acuity-in-the-crossmodal-temporal-order-judgment-task
#12
Cassandra L Dean, Brady A Eggleston, Kyla David Gibney, Enimielen Aligbe, Marissa Blackwell, Leslie Dowell Kwakye
The ability to synthesize information across multiple senses is known as multisensory integration and is essential to our understanding of the world around us. Sensory stimuli that occur close in time are likely to be integrated, and the accuracy of this integration is dependent on our ability to precisely discriminate the relative timing of unisensory stimuli (crossmodal temporal acuity). Previous research has shown that multisensory integration is modulated by both bottom-up stimulus features, such as the temporal structure of unisensory stimuli, and top-down processes such as attention...
2017: PloS One
https://www.readbyqxmd.com/read/28712970/cortical-responses-to-tone-and-phoneme-mismatch-as-a-predictor-of-dyslexia-a-systematic-review
#13
Susanne Volkmer, Gerd Schulte-Körne
Evidence from event-related-potential (ERP) studies has repeatedly shown differences in the perception and processing of auditory stimuli in children with dyslexia compared to control children. The mismatch negativity (MMN) - an ERP component reflecting passive auditory change detection ability - has been found to be reduced, not only in children with a diagnosis of dyslexia, but also in infants and preschool children at risk of developing dyslexia. However, the results are controversial due to the different methods, age of the children and stimuli used...
July 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28688740/reading-deficits-in-schizophrenia-and-their-relationship-to-developmental-dyslexia-a-review
#14
REVIEW
Veronica Whitford, Gillian A O'Driscoll, Debra Titone
Although schizophrenia and developmental dyslexia are considered distinct disorders in terms of clinical presentation and functional outcome, they both involve disruption in the processes that support skilled reading, including language, auditory perception, visual perception, oculomotor control, and executive function. Further, recent work has proposed a common neurodevelopmental basis for the two disorders, as suggested by genetic and pathophysiological overlap. Thus, these lines of research suggest that reading may be similarly impacted in schizophrenia and dyslexia...
July 5, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28686908/a-longitudinal-study-investigating-neural-processing-of-speech-envelope-modulation-rates-in-children-with-a-family-risk-for-dyslexia
#15
Astrid De Vos, Sophie Vanvooren, Jolijn Vanderauwera, Pol Ghesquière, Jan Wouters
Recent evidence suggests that a fundamental deficit in the synchronization of neural oscillations to temporal information in speech may underlie phonological processing problems in dyslexia. Since previous studies were performed cross-sectionally in school-aged children or adults, developmental aspects of neural auditory processing in relation to reading acquisition and dyslexia remain to be investigated. The present longitudinal study followed 68 children during development from pre-reader (5 years old) to beginning reader (7 years old) and more advanced reader (9 years old)...
August 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28608732/beyond-auditory-sensory-processing-deficits-lexical-tone-perception-deficits-in-chinese-children-with-developmental-dyslexia
#16
Xiuhong Tong, Xiuli Tong, Fung King Yiu
Increasing evidence suggests that children with developmental dyslexia exhibit a deficit not only at the segmental level of phonological processing but also, by extension, at the suprasegmental level. However, it remains unclear whether such a suprasegmental phonological processing deficit is due to a difficulty in processing acoustic cues of speech rhythm, such as rise time and intensity. This study set out to investigate to what extent suprasegmental phonological processing (i.e., Cantonese lexical tone perception) and rise time sensitivity could distinguish Chinese children with dyslexia from typically developing children...
June 1, 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/28577444/auditory-processing-deficits-are-sometimes-necessary-and-sometimes-sufficient-for-language-difficulties-in-children-evidence-from-mild-to-moderate-sensorineural-hearing-loss
#17
Lorna F Halliday, Outi Tuomainen, Stuart Rosen
There is a general consensus that many children and adults with dyslexia and/or specific language impairment display deficits in auditory processing. However, how these deficits are related to developmental disorders of language is uncertain, and at least four categories of model have been proposed: single distal cause models, risk factor models, association models, and consequence models. This study used children with mild to moderate sensorineural hearing loss (MMHL) to investigate the link between auditory processing deficits and language disorders...
September 2017: Cognition
https://www.readbyqxmd.com/read/28527953/audiovisual-speech-integration-in-the-superior-temporal-region-is-dysfunctional-in-dyslexia
#18
REVIEW
Zheng Ye, Jascha Rüsseler, Ivonne Gerth, Thomas F Münte
Dyslexia is an impairment of reading and spelling that affects both children and adults even after many years of schooling. Dyslexic readers have deficits in the integration of auditory and visual inputs but the neural mechanisms of the deficits are still unclear. This fMRI study examined the neural processing of auditorily presented German numbers 0-9 and videos of lip movements of a German native speaker voicing numbers 0-9 in unimodal (auditory or visual) and bimodal (always congruent) conditions in dyslexic readers and their matched fluent readers...
May 18, 2017: Neuroscience
https://www.readbyqxmd.com/read/28442358/an-oscillopathic-approach-to-developmental-dyslexia-from-genes-to-speech-processing
#19
REVIEW
Miguel Jiménez-Bravo, Victoria Marrero, Antonio Benítez-Burraco
Developmental dyslexia is a heterogeneous condition entailing problems with reading and spelling. Several genes have been linked or associated to the disease, many of which contribute to the development and function of brain areas important for auditory and phonological processing. Nonetheless, a clear link between genes, the brain, and the symptoms of dyslexia is still pending. The goal of this paper is contributing to bridge this gap. With this aim, we have focused on how the dyslexic brain fails to process speech sounds and reading cues...
June 30, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28436889/design-and-implementation-of-a-tactile-stimulation-device-to-increase-auditory-discrimination
#20
Shahrzad Abbasi Baharanchi, Majid MohammadBeigi, Fatemeh Abnavi, Samira Tavakol
Reading is a complex process that requires various simultaneous brain processes. One of the most common types of reading disorders is developmental dyslexia, and one of the objectives of speech therapy sessions for children with developmental dyslexia is to increase their auditory discrimination. One of the most commonly used Auditory Discrimination Tests (ADTs) is Wepman's Auditory Discrimination Test (WADT). It includes minimal pair words categorized by characteristics of vowels and consonants. The goal of this research is to design and implement a tactile stimulation device based on Wepman's test to increase auditory discrimination in children with developmental dyslexia in therapy sessions, so that while playing each word for the children, vibrational cues are presented to their left palm and fingers...
April 24, 2017: IEEE Transactions on Haptics
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