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Apraxia

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https://www.readbyqxmd.com/read/29353121/tau-pet-imaging-with-18f-av-1451-in-primary-progressive-apraxia-of-speech
#1
Rene L Utianski, Jennifer L Whitwell, Christopher G Schwarz, Matthew L Senjem, Nirubol Tosakulwong, Joseph R Duffy, Heather M Clark, Mary M Machulda, Ronald C Petersen, Clifford R Jack, Val J Lowe, Keith A Josephs
Apraxia of speech is a motor speech disorder characterized by combinations of slow speaking rate, abnormal prosody, distorted sound substitutions, and trial-and-error articulatory movements. Apraxia of speech is due to abnormal planning and/or programming of speech production. It is referred to as primary progressive apraxia of speech (PPAOS) when it is the only symptom of a neurodegenerative condition. Past reports suggest an association of PPAOS with primary 4-repeat (4R) tau (e.g., progressive supranuclear palsy, corticobasal degeneration), rather than amyloid, pathology...
January 2, 2018: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29306357/apathy-in-corticobasal-degeneration-possible-parietal-involvement
#2
Rita Moretti, R Caberlotto, R Signori
Corticobasal degeneration is a rare disorder, which usually consists of a combination of complex movement disorders, apraxia and cortical changes. Its definition is still evolving and in 2013 an international consortium tried to develop new criteria, based on a systematic literature review. Over a long period of time, we carefully selected 23 patients who fulfilled the criteria for a diagnosis of corticobasal degeneration; all had the so-called corticobasal syndrome phenotype, in accordance with Armstrong et al...
October 2017: Functional Neurology
https://www.readbyqxmd.com/read/29282340/-from-involuntary-movements-to-movement-disorders
#3
Toshio Fukutake
Apart from the term 'involuntary movements', the term 'movement disorders' encompasses not only classical hyperkinesias but also hypokinesias including catalepsy or apraxia. It enables us to understand abnormal movements by their phenomena instead of by their localization. To advance the grasping of movement disorders, we discuss the clinical and pathophysiological features of abnormal movements in catatonia/catalepsy, anti-NMDAR encephalitis, paroxysmal dyskinesias, stiff person/leg syndrome, corticobasal degeneration/syndrome, and hysteria...
December 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/29281317/changes-in-movement-transitions-across-a-practice-period-in-childhood-apraxia-of-speech
#4
Maria I Grigos, Julie Case
This study examined changes in speech motor control across a movement transition between sounds within a motor learning task in children with apraxia of speech (CAS) and typical development (TD). It was investigated whether oral articulator movement was refined with practice and whether practice gains generalized to words not included in the practice session. A total of 16 children (ages 5-6) with CAS (n = 8) and TD (n = 8) participated in this study. Novel and real word tokens were produced at three time points...
December 27, 2017: Clinical Linguistics & Phonetics
https://www.readbyqxmd.com/read/29279711/a-case-of-recurrent-ischemic-stroke-due-to-intravascular-lymphomatosis-undiagnosed-by-random-skin-biopsy-and-brain-imaging
#5
Yuichiro Ohya, Masato Osaki, Shouta Sakai, Shunsuke Kimura, Tatsuro Shimogamo, Tetsuro Ago, Takanari Kitazono, Shuji Arakawa
Intravascular lymphoma (IVL) is a rare disease characterized by the proliferation of lymphoma cells in the lumen of the small blood vessels. Although early diagnosis of IVL is important to prolong survival of the patients, its atypical symptoms and clinical course often delay its diagnosis. More than half of the patients are diagnosed at autopsy. We report a 68-year-old man who presented with transient ideomotor apraxia and mildly elevated soluble interleukin-2 receptor levels. He was initially diagnosed with aortogenic embolic stroke...
September 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/29277173/novel-tool-selection-in-left-brain-damaged-patients-with-apraxia-of-tool-use-a-study-of-three-cases
#6
François Osiurak, Marine Granjon, Isabelle Bonnevie, Joël Brogniart, Laura Mechtouff, Amandine Benoit, Norbert Nighoghossian, Mathieu Lesourd
OBJECTIVES: Recent evidence indicates that some left brain-damaged (LBD) patients have difficulties to use familiar tools because of the inability to reason about physical object properties. A fundamental issue is to understand the residual capacity of those LBD patients in tool selection. METHODS: Three LBD patients with tool use disorders, three right brain-damaged (RBD) patients, and six matched healthy controls performed a novel tool selection task, consisting in extracting a target out from a box by selecting the relevant tool among eight, four, or two tools...
December 26, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/29275004/handling-or-being-the-concept-an-fmri-study-on-metonymy-representations-in-coverbal-gestures
#7
Gina Joue, Linda Boven, Klaus Willmes, Vito Evola, Liliana R Demenescu, Julius Hassemer, Irene Mittelberg, Klaus Mathiak, Frank Schneider, Ute Habel
In "Two heads are better than one," "head" stands for people and focuses the message on the intelligence of people. This is an example of figurative language through metonymy, where substituting a whole entity by one of its parts focuses attention on a specific aspect of the entity. Whereas metaphors, another figurative language device, are substitutions based on similarity, metonymy involves substitutions based on associations. Both are figures of speech but are also expressed in coverbal gestures during multimodal communication...
December 21, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29249681/more-than-ataxia-movement-disorders-in-ataxia-telangiectasia
#8
REVIEW
Hélio Afonso Ghizoni Teive, Carlos Henrique Ferreira Camargo, Renato Puppi Munhoz
Ataxia-telangiectasia (AT) is a rare autosomal recessive neurodegenerative disease caused by mutations in the ATM gene with progressive neurological dysfunction, multisystem abnormalities and cancer predisposition. Classically, AT is associated with cerebellar ataxia, oculocutaneous telangiectasia and oculomotor apraxia. The aim of this review is to describe the movement disorders observed in patients with AT. Movement disorders in AT patients described in the literature are reviewed. The selected articles were analyzed with a focus on clinical presentation, presence of movement disorders, and atypical cases or variants of the syndrome...
December 12, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29236818/limb-apraxia-in-aphasic-patients
#9
Karin Zazo Ortiz, Joana Mantovani-Nagaoka
Limb apraxia is usually associated with left cerebral hemisphere damage, with numerous case studies involving aphasic patients. The aim of this study was to verify the occurrence of limb apraxia in aphasic patients and analyze its nature. This study involved 44 healthy volunteers and 28 aphasic patients matched for age and education. AH participants were assessed using a limb apraxia battery comprising subtests evaluating lexical-semantic aspects related to the comprehension/production of gestures as well as motor movements...
November 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29236816/limb-apraxia-and-aphasia
#10
EDITORIAL
Márcia Radanovic
No abstract text is available yet for this article.
November 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29228180/longitudinal-structural-and-molecular-neuroimaging-in-agrammatic-primary-progressive-aphasia
#11
Katerina A Tetzloff, Joseph R Duffy, Heather M Clark, Edythe A Strand, Mary M Machulda, Christopher G Schwarz, Matthew L Senjem, Robert I Reid, Anthony J Spychalla, Nirubol Tosakulwong, Val J Lowe, Clifford R Jack, Keith A Josephs, Jennifer L Whitwell
The agrammatic variant of primary progressive aphasia affects normal grammatical language production, often occurs with apraxia of speech, and is associated with left frontal abnormalities on cross-sectional neuroimaging studies. We aimed to perform a detailed assessment of longitudinal change on structural and molecular neuroimaging to provide a complete picture of neurodegeneration in these patients, and to determine how patterns of progression compare to patients with isolated apraxia of speech (primary progressive apraxia of speech)...
December 8, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29225339/early-speech-development-in-koolen-de-vries-syndrome-limited-by-oral-praxis-and-hypotonia
#12
Angela T Morgan, Leenke van Haaften, Karen van Hulst, Carol Edley, Cristina Mei, Tiong Yang Tan, David Amor, Simon E Fisher, David A Koolen
Communication disorder is common in Koolen de Vries syndrome (KdVS), yet its specific symptomatology has not been examined, limiting prognostic counselling and application of targeted therapies. Here we examine the communication phenotype associated with KdVS. Twenty-nine participants (12 males, 4 with KANSL1 variants, 25 with 17q21.31 microdeletion), aged 1.0-27.0 years were assessed for oral-motor, speech, language, literacy, and social functioning. Early history included hypotonia and feeding difficulties...
December 11, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29222568/model-driven-treatment-of-childhood-apraxia-of-speech-positive-effects-of-the-speech-motor-learning-approach
#13
Anita van der Merwe, Mollie Steyn
Purpose: The aim of the study was to propose the speech motor learning approach (Van der Merwe, 2011) as a treatment for childhood apraxia of speech and to determine if it will effect positive change in the ability of a 33-month-old child to produce untreated nonwords and words containing treated age-appropriate consonants (Set 1 sounds), untreated age-appropriate consonants (Set 2), and untreated age-inappropriate consonants (Set 3) and also to determine the nature and number of segmental speech errors before and after treatment...
December 8, 2017: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/29212862/ataxia-with-oculomotor-apraxia-type-2-an-evolving-axonal-neuropathy
#14
Tahira N Choudry, David Hilton-Jones, Graham Lennox, Henry Houlden
A 23-year-old woman had presented initially to a podiatrist complaining of poorly fitting shoes during her adolescence. After extensive neurological review, she was diagnosed with ataxia with oculomotor apraxia type 2. This is a progressive autosomal recessive ataxia associated with cerebellar atrophy, peripheral neuropathy and an elevated serum α-fetoprotein. Within Europe, it is the most frequent autosomal recessive ataxia after Friedreich's ataxia and is due to mutations in the senataxin (SETX) gene. The age of onset is approximately 15 years...
December 6, 2017: Practical Neurology
https://www.readbyqxmd.com/read/29202356/apraxia-of-object-related-action-does-not-depend-on-visual-feedback
#15
Christoph Sperber, Andrea Christensen, Winfried Ilg, Martin A Giese, Hans-Otto Karnath
Pantomime of tool use is typically affected in neurological patients with apraxia, while at the same time these patients are able to perform the use of the actual tool with less or no errors. This discrepancy is commonly explained by differences in afferent input, in particular a lack of visual online feedback from the object in pantomime. The present study investigated the role of visual feedback in apraxia of pantomime by testing neurological patients with apraxia and healthy controls in a task requiring the pantomime of tool use as well as real tool use...
November 27, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29199507/asymmetric-oculomotor-apraxia-optic-ataxia-and-simultanagnosia-with-right-hemispatial-neglect-from-a-predominantly-left-sided-lesion-of-the-parieto-occipital-area
#16
Yasuhisa Sakurai, Masanori Fujimoto, Kensuke Hamada, Izumi Sugimoto
INTRODUCTION: Bálint's syndrome involves bilateral damage to the parieto-occipital area. The extent of the effect of unilateral damage on the Bálint's triad (oculomotor apraxia, optic ataxia, and simultanagnosia) remains unknown. METHODS: We examined a 63-year-old, right-handed woman who developed right hemianopia, oculomotor apraxia, optic ataxia, simultanagnosia, and hemispatial neglect (HSN) for the right after a cerebral infarction, with detailed neuropsychological tests, magnetic resonance imaging, and single photon emission computed tomography (SPECT)...
December 2, 2017: Cognitive Neuropsychiatry
https://www.readbyqxmd.com/read/29197200/conscious-attention-defect-and-inhibitory-control-deficit-in-parkinson-s-disease-mild-cognitive-impairment-a-comparison-study-with-amnestic-mild-cognitive-impairment-multiple-domain
#17
Davide Maria Cammisuli, Marco Timpano Sportiello
BACKGROUND: Frontal/executive dysfunction commonly occurs in Parkinso's disease - Mild Cognitive Impairment (PD-MCI patients). However, to date, the number of studies comparing PD-MCI and MCI patients of other etiologies are too small. The present study aims at clarifying the attention/working memory and executive dysfunction of PD-MCI patients in comparison to amnestic MCI multiple domain patients with first extended then abbreviated structural brain changes suggesting preclinical Alzheimer's Disease...
December 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/29181537/a-multivariate-analytic-approach-to-the-differential-diagnosis-of-apraxia-of-speech
#18
Alexandra Basilakos, Grigori Yourganov, Dirk-Bart den Ouden, Daniel Fogerty, Chris Rorden, Lynda Feenaughty, Julius Fridriksson
Purpose: Apraxia of speech (AOS) is a consequence of stroke that frequently co-occurs with aphasia. Its study is limited by difficulties with its perceptual evaluation and dissociation from co-occurring impairments. This study examined the classification accuracy of several acoustic measures for the differential diagnosis of AOS in a sample of stroke survivors. Method: Fifty-seven individuals were included (mean age = 60.8 ± 10.4 years; 21 women, 36 men; mean months poststroke = 54...
November 27, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/29167022/does-apraxia-support-spatial-and-kinematic-or-mirror-neuron-approaches-to-social-interaction-a-commentary-on-binder-et%C3%A2-al-2017
#19
Arran T Reader, Matteo Candidi
No abstract text is available yet for this article.
November 2, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29160548/botulinum-toxin-for-treating-unilateral-apraxia-of-eyelid-opening-in-a-patient-with-congenital-myotonia
#20
Estrella Fernández, Marta Latasiewicz, Laura Pelegrin, Manuel Romera, Silvana Schellini, Alicia Galindo-Ferreiro
A 37-year-old female presented with severe apraxia of lid opening (ALO) affecting the right upper lid associated with Becker congenital myotonia (MC). The patient had a history of right upper lid ptosis for 25 years that was exacerbated over the previous month with severe incapacity to open her right eye. No other associated neurological or ophthalmic symptoms were observed. The patient was treated with botulinum toxin (BoNT-A) injection into the pretarsal and lateral canthus region of the orbicularis oculi of the affected eyelid...
September 2017: Arquivos Brasileiros de Oftalmologia
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