Abstract:
:According to Liepmann, patients with limb-kinetic apraxia (LKA) have a loss of upper limb deftness-dexterity. Prior studies have revealed in right-handed patients that, whereas injury of the left hemisphere induces an ipsilesional LKA, injury to the right hemisphere does not induce an ipsilesional LKA. There are at least two possible means by which the left hemisphere may influence the deftness of the left hand, either by callosal connections or by ipsilesional corticospinal projections. The purpose of this study was to learn whether a patient with a focal lesion of the corpus callosum had a callosal disconnection LKA. This 57-year-old right-handed man had a memory impairment, and upon brain imaging, was found to have a septum pellucidum cyst, which was causing mild ventricular obstruction to the occipital and temporal horns. He underwent an endoscopic-assisted fenestration of the septum pellucidum. Postoperative imaging revealed a lesion of the mesial portion of his corpus callosum and an assessment of praxis revealed that he had both a limb-kinetic and ideomotor apraxia of his left but not his right hand. The observation that this man had a callosal disconnection LKA of his left hand suggests that in some people it is the left hemisphere's premotor or motor cortex that enables the right hemisphere's motor system to program deft movements of the left hand.
journal_name
Neurocasejournal_title
Neurocaseauthors
Acosta LM,Bennett JA,Heilman KMdoi
10.1080/13554794.2013.826683subject
Has Abstractpub_date
2014-01-01 00:00:00pages
599-605issue
6eissn
1355-4794issn
1465-3656journal_volume
20pub_type
杂志文章相关文献
NEUROCASE文献大全abstract::A hexanucleotide repeat expansion in the chromosome 9 open reading frame 72 (C9ORF72) gene was recently discovered as the cause underlying frontotemporal degeneration (FTD) and/or amyotrophic lateral sclerosis (ALS) linked to chromosome 9 (c9FTD/ALS). In this atypical case of c9FTD/ALS, the proband presented with amne...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2012.732090
更新日期:2014-01-01 00:00:00
abstract::A 75 year-old man had a two-year history of progressive memory loss, trouble with finances and getting lost. On examination, he scored 16/30 in MoCA test, noticeably impaired on the attentional tasks. His screening bloodtests werenormal. Brain imaging revealed hippocampal atrophy and bilaterallarge areas of leukoaraio...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2020.1769138
更新日期:2020-08-01 00:00:00
abstract::Patients with Parkinson's disease (PD) are often impaired when performing motor acts and in the acquisition of new motor skills. However, the role of dopamine in developing plans for skill acquisition is unclear. To assess the role of dopamine on the planning of actions, we tested 12 PD and 12 matched normal participa...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554790903379609
更新日期:2010-04-01 00:00:00
abstract::Gerstmann-Sträussler-Scheinker syndrome is a rare autosomal dominant disease caused by a mutation in the prion gene, usually manifesting as progressive ataxia with late cognitive decline. A 44-year-old woman with a positive family history developed early personality and behavior changes, followed by paresthesias and a...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2011.654215
更新日期:2013-01-01 00:00:00
abstract::Both prosody and sentence structure (e.g., canonical versus non-canonical) affect sentence comprehension. However, few previous studies have examined a possible interaction between prosody and sentence structure. In adult controls we found a significant interaction: typical sentence prosody, versus list prosody, facil...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2019.1630447
更新日期:2019-01-01 00:00:00
abstract::Primary progressive apraxia of speech (PPAOS) is a neurodegenerative disorder in which AOS is the sole presenting complaint. We report clinical and neuroimaging data spanning 10 years from disease onset-to-death in a 49 year-old male PPAOS patient, DY, who died with corticobasal degeneration. He presented with AOS wit...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2018.1477963
更新日期:2018-04-01 00:00:00
abstract::This article describes an investigation into the residual writing skills of a severely dysgraphic patient (DA). We found that they were powerfully influenced by a number of lexical variables (lexicality, frequency, imageability, length and geminates). His error pattern was characterized by semantic, lexical, substitut...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554790490893995
更新日期:2004-12-01 00:00:00
abstract::In this paper we report the results of a longitudinal study which examined memory for a single routine activity of daily living in people with dementia of the Alzheimer type. We assessed memory in a natural setting, visiting volunteers in their homes. We video-taped performance on the selected task and analysed the re...
journal_title:Neurocase
pub_type: 临床试验,杂志文章
doi:10.1093/neucas/8.1.111
更新日期:2002-01-01 00:00:00
abstract::We observed a 59-year-old right-handed man with an infarction in his right-middle cerebral artery that included the parietal lobe, who abnormally manipulated mental images in the horizontal direction, resulting in calculation disturbances. Three years later, the patient suffered an infarction in the left parietal lobe...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2012.741254
更新日期:2014-04-01 00:00:00
abstract::We characterized the effect of virtual visual feedback (VVF) on supernumerary phantom limb pain (SPLP) in a patient with high cervical cord injury. The subject was a 22-year-old man diagnosed with complete spinal cord injury (level C2) approximately 5 years ago. We applied the ABA'B' single-case design and set phases ...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2015.1011664
更新日期:2015-01-01 00:00:00
abstract::Confabulation may be present in Alzheimer's disease (AD), but usually it is not a primary feature of either its typical or atypical variants. In this report, we describe the case of an AD patient who showed an unusual and enduring neuropsychiatric phenotype characterized by early and prominent spontaneous confabulatio...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2016.1239743
更新日期:2016-10-01 00:00:00
abstract::The brain's primary motor and primary somatosensory cortices are generally viewed as functionally distinct entities. Here we show by means of magnetoencephalography with a phantom-limb patient, that movement of the phantom hand leads to a change in the response of the primary somatosensory cortex to tactile stimulatio...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2013.873060
更新日期:2015-02-01 00:00:00
abstract::Cerebral lesions are held to induce plastic changes of the brain. Less well established, however, is how much space-occupying brain lesions may only displace functional representations. In a 66-year-old man we show, by means of functional magnetic resonance imaging and transcranial magnetic stimulation, a profound dis...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554790701849910
更新日期:2007-10-01 00:00:00
abstract::Central pontine and extrapontine myelinolysis (CPEM) is a rare neurological condition usually due to rapid correction of hyponatremia. CPEM is mainly characterized by motor deficits (typically quadraparesis or extrapyramidal features) but neurobehavioral symptoms were also reported in the literature. However, very few...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2011.633528
更新日期:2012-01-01 00:00:00
abstract::We report the case of a 71 year-old female patient (DC) with a left parietal lesion resulting in a peripheral dysgraphia essentially characterized by difficulties in letter sequences writing. The aim of our experiments was to analyze the influence of motor difficulties on the visual perception of both writing and reac...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554790490495113
更新日期:2004-06-01 00:00:00
abstract::In this paper, we adopt a neurodevelopmental stance to examining frontal variant frontotemporal dementia (fv-FTD) by using experimental procedures from the literature on the growth of social behaviour in children to examine the deficits in social reasoning which may underpin behavioural disturbance in fv-FTD. We prese...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1093/neucas/7.2.123
更新日期:2001-01-01 00:00:00
abstract::We examined the relations between selection for perception and selection for action in a patient FK, with bilateral damage to his temporal and medial frontal cortices. The task required a simple grasp response to a common object (a cup) in the presence of a distractor (another cup). The target was cued by colour or lo...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1076/neur.9.3.239.15556
更新日期:2003-06-01 00:00:00
abstract::We studied reading performance for words and for isolated letters in a pure alexic patient. She performed reasonably well when naming isolated letters but was slower in reading letters than a control subject when reaction times (RTs) were recorded. When the patient read isolated letters, RTs were slower for a subset o...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1076/neur.9.2.164.15069
更新日期:2003-04-01 00:00:00
abstract::The accurate prediction, at a pre-dementia stage of Alzheimer's disease (AD), of the subsequent clinical evolution of patients would be a major breakthrough from both therapeutic and research standpoints. Amnestic mild cognitive impairment (MCI) is presently the most common reference to address the pre-dementia stage ...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554790490896938
更新日期:2005-02-01 00:00:00
abstract::The clinical distinction between autism spectrum disorders (ASD), also called pervasive developmental disorders (PDD), and schizophrenia is often difficult to make. Here we describe a case of an adult patient presenting with a diagnosis of schizophrenia based on a history of functional deterioration and presumed perse...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2012.713492
更新日期:2013-01-01 00:00:00
abstract::We investigated the neural systems that support number processing in a patient (JL) who had damage to the left ventral occipito-temporal cortex (LvOT). JL had severely impaired written word recognition but he was remarkably accurate in number tasks, albeit slower than normal. This suggests LvOT activation is necessary...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2011.588179
更新日期:2012-01-01 00:00:00
abstract::Subject PI demonstrated superior memory using a variant of a Method of Loci (MOL) technique to recite the first digits of the mathematical constant pi to more than 2(16) decimal places. We report preliminary behavioral, functional magnetic resonance imaging (fMRI), and brain volumetric data from PI. fMRI data collecte...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554790902776896
更新日期:2009-10-01 00:00:00
abstract::The current study investigated the effects of easy versus difficult math on event-related potentials as a function of self-esteem in 28 undergraduate students. First, it was found that participants responded much more rapidly to an easy task. Second, the amplitude of P2 (150-300 ms) was more positive amplified in low ...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2012.701636
更新日期:2013-01-01 00:00:00
abstract::Neglect dyslexia is a reading disorder often associated with right-sided brain lesions. In reading single words, errors are mostly substitutions or omissions of letters that occupy the left-sided positions. Typically, these errors have been thought to depend on a single mechanism. Conversely, we propose that they are ...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2010.498382
更新日期:2011-01-01 00:00:00
abstract::In a previous report, we presented longitudinal clinical, cognitive and anatomical data of a right-handed woman, whose clinical picture evolved from progressive nonfluent aphasia with apraxia of speech to corticobasal syndrome (CBS) in the last stage of the disease. The patient died at age 57 and pathological examinat...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554790600977218
更新日期:2006-12-01 00:00:00
abstract::Recent lesion studies have shown that left hemisphere lesions often give rise to frank sign language aphasias in deaf signers, whereas right hemisphere lesions do not, suggesting similar patterns of hemispheric asymmetry for signed and spoken language. We present here a case of a left-handed, deaf, life-long signer wh...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554790590944717
更新日期:2005-06-01 00:00:00
abstract::Opsoclonus myoclonus ataxia (OMA) is a rare neurological disorder (incidence = approximately 1/5 million) primarily associated with involuntary conjugate saccadic eye movements, involuntary muscle jerks, cerebellar ataxia, and neuropsychological impairments. Unfortunately, there is limited published data regarding the...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554791003620264
更新日期:2010-08-01 00:00:00
abstract::A 62-year-old male presented with progressive isolated writing and spelling difficulties. Neurological, neuropsychological, speech, and language evaluations identified only minimal additional abnormalities. The presenting characteristics did not meet criteria for any particular variant of primary progressive aphasia; ...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2018.1454963
更新日期:2018-04-01 00:00:00
abstract::For functional neuroimaging studies of stuttering, two challenges are (1) the elicitation of naturally stuttered versus fluent speech and (2) the separation of activation associated with abnormal motor execution from activation that reflects the cognitive substrates of stuttering. This paper reports on a proof-of-conc...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2013.791863
更新日期:2014-08-01 00:00:00
abstract::Regressive behavior is a known sequela after severe traumatic brain injury (TBI). However, prolonged "infantile-like" behavior has received little attention in the literature, suggesting that this is a rare phenomenon. It is typically characterized by long-lasting childish, extremely dependent, and sometimes aggressiv...
journal_title:Neurocase
pub_type: 杂志文章
doi:10.1080/13554794.2013.826680
更新日期:2014-01-01 00:00:00