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Phonological impairment

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https://www.readbyqxmd.com/read/28434153/machine-learning-xgboost-analysis-of-language-networks-to-classify-patients-with-epilepsy
#1
L Torlay, M Perrone-Bertolotti, E Thomas, M Baciu
Our goal was to apply a statistical approach to allow the identification of atypical language patterns and to differentiate patients with epilepsy from healthy subjects, based on their cerebral activity, as assessed by functional MRI (fMRI). Patients with focal epilepsy show reorganization or plasticity of brain networks involved in cognitive functions, inducing 'atypical' (compared to 'typical' in healthy people) brain profiles. Moreover, some of these patients suffer from drug-resistant epilepsy, and they undergo surgery to stop seizures...
April 22, 2017: Brain Informatics
https://www.readbyqxmd.com/read/28433347/phonological-and-semantic-processing-during-comprehension-in-wernicke-s-aphasia-an-n400-and-phonological-mapping-negativity-study
#2
Holly Robson, Emma Pilkington, Louise Evans, Vincent Deluca, James L Keidel
Comprehension impairments in Wernicke's aphasia are thought to result from a combination of impaired phonological and semantic processes. However, the relationship between these cognitive processes and language comprehension has only been inferred through offline neuropsychological tasks. This study used ERPs to investigate phonological and semantic processing during online single word comprehension. EEG was recorded in a group of Wernicke's aphasia n=8 and control participants n=10 while performing a word-picture verification task...
April 19, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28430974/using-transcranial-magnetic-stimulation-of-the-undamaged-brain-to-identify-lesion-sites-that-predict-language-outcome-after-stroke
#3
Diego L Lorca-Puls, Andrea Gajardo-Vidal, Mohamed L Seghier, Alexander P Leff, Varun Sethi, Susan Prejawa, Thomas M H Hope, Joseph T Devlin, Cathy J Price
Transcranial magnetic stimulation focused on either the left anterior supramarginal gyrus or opercular part of the left inferior frontal gyrus has been reported to transiently impair the ability to perform phonological more than semantic tasks. Here we tested whether phonological processing abilities were also impaired following lesions to these regions in right-handed, English speaking adults, who were investigated at least 1 year after a left-hemisphere stroke. When our regions of interest were limited to 0...
April 18, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28424400/-brodmann-areas-39-and-40-human-parietal-association-area-and-higher-cortical-function
#4
Yasuhisa Sakurai
The anatomy and function of the angular gyrus (Brodmann Area 39) and supramarginal gyrus (Brodmann Area 40) are described here. Both gyri constitute the inferior part of the parietal lobe. Association fibers from the angular gyrus project to the dorsolateral prefrontal cortex via the superior longitudinal fasciculus (SLF) II/arcuate fasciculus (AF), whereas those from the supramarginal gyrus project to the ventrolateral prefrontal cortex via SLF III/AF. Damage to the left angular gyrus causes kanji agraphia (lexical agraphia) and mild anomia, whereas damage to the left supramarginal gyrus causes kana alexia (phonological dyslexia) and kana agraphia (phonological agraphia)...
April 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28423976/screening-for-dyslexia-in-french-speaking-university-students-an-evaluation-of-the-detection-accuracy-of-the-alouette-test
#5
Eddy Cavalli, Pascale Colé, Gilles Leloup, Florence Poracchia-George, Liliane Sprenger-Charolles, Abdessadek El Ahmadi
Developmental dyslexia is a lifelong impairment affecting 5% to 10% of the population. In French-speaking countries, although a number of standardized tests for dyslexia in children are available, tools suitable to screen for dyslexia in adults are lacking. In this study, we administered the Alouette reading test to a normative sample of 164 French university students without dyslexia and a validation sample of 83 students with dyslexia. The Alouette reading test is designed to screen for dyslexia in children, since it taps skills that are typically deficient in dyslexia (i...
April 1, 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/28421858/multi-step-treatment-for-acquired-alexia-and-agraphia-part-i-efficacy-generalisation-and-identification-of-beneficial-treatment-steps
#6
Jeffrey P Johnson, Katrina Ross, Swathi Kiran
Reading and writing impairments are common in individuals with post-stroke aphasia. Treatment typically aims to improve the function of one of these modalities by strengthening aspects of either lexical or sublexical processing. In the present study, eight adults with acquired alexia and agraphia were administered a comprehensive treatment targeting specific lexical and sublexical processes underlying reading and/or writing. Two participants were trained in reading and six were trained in writing. Throughout treatment, reading and writing accuracy were monitored for trained items, as well as untrained but orthographically and semantically related items...
April 19, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28400089/neural-noise-hypothesis-of-developmental-dyslexia
#7
REVIEW
Roeland Hancock, Kenneth R Pugh, Fumiko Hoeft
Developmental dyslexia (decoding-based reading disorder; RD) is a complex trait with multifactorial origins at the genetic, neural, and cognitive levels. There is evidence that low-level sensory-processing deficits precede and underlie phonological problems, which are one of the best-documented aspects of RD. RD is also associated with impairments in integrating visual symbols with their corresponding speech sounds. Although causal relationships between sensory processing, print-speech integration, and fluent reading, and their neural bases are debated, these processes all require precise timing mechanisms across distributed brain networks...
April 8, 2017: Trends in Cognitive Sciences
https://www.readbyqxmd.com/read/28393676/deficit-in-phonological-processes-a-characteristic-of-the-neuropsychological-profile-of-children-with-nf1
#8
Yves Chaix, Valérie Lauwers-Cancès, Nathalie Faure-Marie, Catherine Gentil, Sandrine Lelong, Elisabeth Schweitzer, Diana Rodriguez, Stéphanie Iannuzzi, Isabelle Kemlin, Nathalie Dorison, François Rivier, Maryline Carniero, Elodie Preclaire, Sébastien Barbarot, Laurence Lion-François, Pierre Castelnau
Learning disabilities are one of the most frequent complications of neurofibromatosis type 1 (NF1) in children. Studies of the effects of the neurocognitive deficit on academic performance are relatively rare, owing to the small size of the populations concerned. However, research is needed to develop effective rehabilitation programs. In the present study, we explored the impact of a possible phonological deficit on the reading abilities of children with NF1. A multicenter, cross-sectional study was conducted in France on two groups of 75 children with or without NF1 aged 8-12 years, matched for age, sex, handedness, and reading level...
April 10, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
https://www.readbyqxmd.com/read/28388708/word-learning-deficits-in-children-with-dyslexia
#9
Mary Alt, Tiffany Hogan, Samuel Green, Shelley Gray, Kathryn Cabbage, Nelson Cowan
Purpose: The purpose of this study is to investigate word learning in children with dyslexia to ascertain their strengths and weaknesses during the configuration stage of word learning. Method: Children with typical development (N = 116) and dyslexia (N = 68) participated in computer-based word learning games that assessed word learning in 4 sets of games that manipulated phonological or visuospatial demands. All children were monolingual English-speaking 2nd graders without oral language impairment...
April 7, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28384805/speech-recognition-in-adults-with-cochlear-implants-the-effects-of-working-memory-phonological-sensitivity-and-aging
#10
Aaron C Moberly, Michael S Harris, Lauren Boyce, Susan Nittrouer
Purpose: Models of speech recognition suggest that "top-down" linguistic and cognitive functions, such as use of phonotactic constraints and working memory, facilitate recognition under conditions of degradation, such as in noise. The question addressed in this study was what happens to these functions when a listener who has experienced years of hearing loss obtains a cochlear implant. Method: Thirty adults with cochlear implants and 30 age-matched controls with age-normal hearing underwent testing of verbal working memory using digit span and serial recall of words...
April 4, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28383971/an-evaluation-of-language-in-brain-tumor-patients-using-a-new-cognitively-motivated-testing-protocol
#11
Josh W Faulkner, Carolyn E Wilshire, Andrew J Parker, Kay Cunningham
OBJECTIVE: To characterize the language impairments that occur in brain tumor patients using a cognitively oriented theoretical framework. METHOD: Forty-nine preoperative brain tumor patients completed a new testing protocol (the BLAST) which assesses 8 well documented, "core" cognitive skills required for language: auditory word recognition, accessing semantic knowledge, lexical selection, phonological encoding, verbal short-term memory, goal-driven language selection, verb retrieval, and articulatory-motor planning...
April 6, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28380200/alliteration-and-rhyme-skills-in-children-with-specific-language-impairment
#12
Paula Renata Pedott, Ana Manhani Cáceres-Assenço, Debora Maria Befi-Lopes
Purpose: this study investigated and compared the performance of school-aged children with specific language impairment (SLI) and their peers typically developing language in alliteration and rhyme tests. The study also aimed to evaluate the influence of semantic and phonological distractors on both tests. Methods: twelve school-aged children with SLI (study group - SG) and 48 peers typically developing language (control group - CG) aged 7 to 9 years. All of them were on 2nd or 3rd grade and presented hearing thresholds within normal limits and appropriate nonverbal intellectual performance...
March 30, 2017: CoDAS
https://www.readbyqxmd.com/read/28375044/repetition-inhibition-and-facilitation-effects-for-visual-verbal-stimuli-under-conditions-of-concurrent-articulation
#13
Andrew J Johnson, Ryan Hawley, Christopher Miles
The present study examines the effects of within-sequence repetitions for visually presented consonants under conditions of quiet and concurrent articulation (CA). In an immediate serial recall (ISR) procedure, participants wrote down the 6-consonants in the order of original presentation. CA reduced serial recall and abolished the phonological similarity effect. However, the effects of within-trial repetitions were broadly similar under quiet and CA. Specifically, adjacent repetitions facilitated recall of the repeated item, whereas spaced repetitions (separated by 3-intervening items) impaired recall accuracy for the repeated item (i...
April 4, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28364681/specific-language-impairment-in-a-morphologically-complex-agglutinative-indian-language-kannada
#14
Shivani Tiwari, Prathibha Karanth, B Rajashekar
Specific Language Impairment (SLI) remains an underinvestigated disorder in morphologically complex agglutinative languages such as Kannada. Currently, only a few case reports are available on SLI in Dravidian languages. The morphological complexity inherent to Dravidian languages such as Kannada provides a potential avenue to verify one of the two prevailing accounts of SLI: the morphological richness theory and CGC (Computational Grammatical Complexity) hypothesis. While the previous theory predicts the relatively spared performance of children with SLI (CwSLI) on syntactic morphology in morphologically complex languages, the latter predicts a diametrically opposite performance...
March 21, 2017: Journal of Communication Disorders
https://www.readbyqxmd.com/read/28326896/investigating-the-effect-of-regional-native-accents-on-sentence-comprehension-in-children-with-language-impairment
#15
Pauline Frizelle, Jennifer Harte, Paul Fletcher, Fiona Gibbon
PURPOSE: Research has shown that accent variation can affect typically developing (TD) children's understanding of language, as well as that of children with speech difficulties, neuro-typical adults and those with aphasia and dementia. This study aims to investigate the effect of regional native accents on sentence comprehension in children with language impairment (LI), an area not previously explored. METHOD: Forty-three children with LI (mean age 6.04) and forty-five younger TD children (mean age 4...
March 22, 2017: International Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/28321196/connected-speech-in-neurodegenerative-language-disorders-a-review
#16
REVIEW
Veronica Boschi, Eleonora Catricalà, Monica Consonni, Cristiano Chesi, Andrea Moro, Stefano F Cappa
Language assessment has a crucial role in the clinical diagnosis of several neurodegenerative diseases. The analysis of extended speech production is a precious source of information encompassing the phonetic, phonological, lexico-semantic, morpho-syntactic, and pragmatic levels of language organization. The knowledge about the distinctive linguistic variables identifying language deficits associated to different neurodegenerative diseases has progressively improved in the last years. However, the heterogeneity of such variables and of the way they are measured and classified limits any generalization and makes the comparison among studies difficult...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28287166/pitch-discrimination-associated-with-phonological-awareness-evidence-from-congenital-amusia
#17
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/28277685/attention-deficit-hyperactivity-disorder-and-phonological-working-memory-methodological-variability-affects-clinical-and-experimental-performance-metrics
#18
Stephanie J Tarle, R Matt Alderson, Connor H G Patros, Sarah E Lea, Kristen L Hudec, Elaine F Arrington
OBJECTIVE: Despite promising findings in extant research that suggest impaired working memory (WM) serves as a central neurocognitive deficit or candidate endophenotype of attention-deficit/hyperactivity disorder (ADHD), findings from translational research have been relatively underwhelming. This study aimed to explicate previous equivocal findings by systematically examining the effect of methodological variability on WM performance estimates across experimental and clinical WM measures...
March 9, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28259857/auditory-training-changes-temporal-lobe-connectivity-in-wernicke-s-aphasia-a-randomised-trial
#19
Zoe Vj Woodhead, Jennifer Crinion, Sundeep Teki, Will Penny, Cathy J Price, Alexander P Leff
INTRODUCTION: Aphasia is one of the most disabling sequelae after stroke, occurring in 25%-40% of stroke survivors. However, there remains a lack of good evidence for the efficacy or mechanisms of speech comprehension rehabilitation. TRIAL DESIGN: This within-subjects trial tested two concurrent interventions in 20 patients with chronic aphasia with speech comprehension impairment following left hemisphere stroke: (1) phonological training using 'Earobics' software and (2) a pharmacological intervention using donepezil, an acetylcholinesterase inhibitor...
March 4, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28241284/nonword-repetition-and-vocabulary-knowledge-as-predictors-of-children-s-phonological-and-semantic-word-learning
#20
Suzanne M Adlof, Hannah Patten
Purpose: This study examined the unique and shared variance that nonword repetition and vocabulary knowledge contribute to children's ability to learn new words. Multiple measures of word learning were used to assess recall and recognition of phonological and semantic information. Method: Fifty children, with a mean age of 8 years (range 5-12 years), completed experimental assessments of word learning and norm-referenced assessments of receptive and expressive vocabulary knowledge and nonword repetition skills...
March 1, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
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