A calendar savant with episodic memory impairments.

abstract：:Although structural brain scans help assess brain injury in stroke, they cannot identify regions that are functionally disabled due to disrupted perfusion. Perfusion and functional MRI have the potential for determining the functional consequences of stroke. Here we examine the effectiveness of functional MRI to measu...

journal_title：Neurocase

authors： Fridriksson J,Rorden C,Morgan PS,Morrow KL,Baylis GC

更新日期：2006-06-01 00:00:00

abstract：:This case study describes the neurocognitive presentation of a child with identified genetic abnormalities of trisomy 6 and monosomy 21 who was evaluated as part of a standard medical protocol for cochlear implantation following diagnosis of profound sensorineural hearing loss. This child received neurocognitive testi...

journal_title：Neurocase

authors： Katzenstein JM,Oghalai JS,Tonini R,Baker D,Haymond J,Caudle SE

更新日期：2009-01-01 00:00:00

abstract：:Recent research revealed decreased access to semantic and associative networks in acute cocaine withdrawal. In autism, such behavioral outcomes are associated with decreased functional connectivity using functional magnetic resonance imaging. Therefore, we wished to determine whether connectivity is also decreased in ...

journal_title：Neurocase

authors： Narayanan A,White CA,Saklayen SS,Abduljalil A,Schmalbrock P,Pepper TH,Lander BN,Beversdorf DQ

更新日期：2012-01-01 00:00:00

abstract：:A 54-year-old art teacher, experienced a right putaminal hemorrhage, and thereafter suffered severe left hemiplegia and unilateral spatial neglect, and was transferred to the rehabilitation department of the University Hospital 1 month after the onset. Although the unilateral spatial neglect was improving, the patient...

journal_title：Neurocase

authors： Kondo M,Mori T,Makino K,Okazaki T,Hachisuka K

更新日期：2012-06-01 00:00:00

abstract：:A deficit of declarative memory is a common sequela after a hypoxic episode. While the role of gray matter changes (i.e., atrophy of hippocampal formation) as mainly responsible for memory loss has been emphasized, the role of the white matter damage has so far been neglected. The present study was aimed at evaluating...

journal_title：Neurocase

authors： Di Paola M,Moscatelli A,Bigler ED,Caltagirone C,Carlesimo GA

更新日期：2011-02-01 00:00:00

abstract：:We assessed visuospatial abilities in PCA. Sequential display of two simple geometric figures enhanced detection and discrimination relative to simultaneous display (Exps 1 & 2). Comparing edges of a single object enhanced discrimination relative to comparing edges of two separate objects, consistent with object-based...

journal_title：Neurocase

authors： Fernandez-Duque D,Black SE

更新日期：2020-04-01 00:00:00

abstract：:An adult female complained of enlargement of right eyes in other people. Diffusion-weighted imaging detected an abnormal high-intensity area in the region from the splenium of the corpus callosum to the major forceps on the right side. The patient reported that right eyes appeared larger in size, which suggested proso...

journal_title：Neurocase

authors： Ogawa K,Akimoto T,Takahashi K,Hara M,Morita A,Kamei S,Nakajima H,Fujishiro M,Suzuki Y,Soma M,Shikata E,Futamura A,Kawamura M

更新日期：2020-10-01 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

authors： Tetzloff KA,Duffy JR,Strand EA,Machulda MM,Boland SM,Utianski RL,Botha H,Senjem ML,Schwarz CG,Josephs KA,Whitwell JL

更新日期：2018-04-01 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

authors： Rusina R,Fiala J,Holada K,Matějčková M,Nováková J,Ampapa R,Koukolík F,Matěj R

更新日期：2013-01-01 00:00:00

abstract：:Individuals with posterior cortical atrophy (PCA) report a host of unusual and poorly explained visual disturbances. This preliminary report describes a single patient (CRO), and documents and investigates abnormally prolonged colour afterimages (concurrent and prolonged perception of colours complimentary to the colo...

journal_title：Neurocase

authors： Crutch SJ,Lehmann M,Gorgoraptis N,Kaski D,Ryan N,Husain M,Warrington EK

更新日期：2011-01-01 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

authors： McGeoch PD,Brang D,Huang M,Ramachandran VS

更新日期：2015-02-01 00:00:00

abstract：:We report a patient presenting with clinical features of logopenic variant primary progressive aphasia (lvPPA) who was later diagnosed with probable dementia with Lewy bodies. LvPPA is a neurodegenerative disease that is characterized by anomia, word-finding difficulty, impaired comprehension, and phonological errors....

journal_title：Neurocase

authors： Boes S,Botha H,Machulda M,Lowe V,Graff-Radford J,Whitwell JL,Utianski RL,Duffy JR,Josephs KA

更新日期：2020-10-01 00:00:00

abstract：:We investigated the nature of covertly processed visual elements in a patient with simultanagnosia, a disorder characterized by the inability to perceive multiple aspects of a visual scene all at once. Using the first letter of the color words red, green, or blue, we created a novel testing paradigm that combined Navo...

journal_title：Neurocase

authors： Shenker JI,Roberts MH

更新日期：2016-06-01 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

authors： Martelli M,Arduino LS,Daini R

更新日期：2011-01-01 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

authors： Chételat G,Eustache F,Viader F,De La Sayette V,Pélerin A,Mézenge F,Hannequin D,Dupuy B,Baron JC,Desgranges B

更新日期：2005-02-01 00:00:00

abstract：:Previous studies on visual form agnosic patients have shown that their color perception is relatively preserved when monochromatic figures are used. However, it is unclear whether their color perception remains normal when figures are composed of two parts in different colors. The results showed that patient X.F. had ...

journal_title：Neurocase

authors： Yang J,Wu M,Shen Z

更新日期：2007-10-01 00:00:00

abstract：:Prior research on developmental dyslexia using Stroop tasks with young participants has found increased interference in participants with dyslexia relative to controls. Here we extend these findings to adult participants, and introduce a novel test of Stroop incongruity, whereby the color names appeared on an object c...

journal_title：Neurocase

authors： Proulx MJ,Elmasry HM

更新日期：2015-01-01 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

authors： Arciero S,Kempf C,Bernard F,Gosselin N

更新日期：2012-01-01 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

authors： Bachoud-Lévi AC,Bartolomeo P

更新日期：2003-04-01 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

authors： Katayama O,Iki H,Sawa S,Osumi M,Morioka S

更新日期：2015-01-01 00:00:00

abstract：:By studying an enigmatic condition called, "calendar synesthesia", we explored the elusive boundary between perception, visual imagery, and the manner in which we construct an internal mental calendar by mapping time-sequences onto spatial maps. We use a series of demonstrations to establish that these calendars act m...

journal_title：Neurocase

authors： Ramachandran VS,Chunharas C,Marcus Z

更新日期：2020-02-01 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

authors： Pickell H,Klima E,Love T,Kritchevsky M,Bellugi U,Hickok G

更新日期：2005-06-01 00:00:00

abstract：:Topographical disorientation is usually described in patients who have lost the ability to orient themselves as a consequence of acquired focal brain damage. Here, we describe the case of a 20-year-old woman with a congenital brain malformation who has never been able to orient herself within the environment. We addre...

journal_title：Neurocase

authors： Iaria G,Incoccia C,Piccardi L,Nico D,Sabatini U,Guariglia C

更新日期：2005-12-01 00:00:00

abstract：:Debates about the role of language in human thinking are increasingly prominent in the cognitive sciences. There are claims that certain forms of reasoning can only be performed through access to the resources of the language faculty. In particular, a component of social cognition involving the representation of the m...

journal_title：Neurocase

authors： Varley R,Siegal M,Want SC

更新日期：2001-01-01 00:00:00

abstract：:One typical feature of the neglect syndrome in patients with right hemisphere damage is that they bisect horizontal lines to the right of centre. It has been argued that to a large extent these bisection errors can be attributed to a perceptual change whereby the patient experiences the left half of a line as shorter ...

journal_title：Neurocase

authors： Pritchard CL,Dijkerman HC,McIntosh RD,Milner AD

更新日期：2001-01-01 00:00:00

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

authors： Adeli A,Savica R,Lowe VJ,Vemuri P,Knopman DS,Dejesus-Hernandez M,Rademakers R,Fields JA,Crum BA,Jack CR,Petersen RC,Boeve BF

更新日期：2014-01-01 00:00:00

abstract：:The psychoses of epilepsy are well recognized complications of seizure disorders, diagnosed easily from the history. However, in the absence of recognized seizures, the diagnosis can be challenging. We present a 27-year-old female, who suffered a treatment refractory psychosis for 6 years. She did not report, or dis...

journal_title：Neurocase

authors： Needham E,Hamelijnck J

更新日期：2012-01-01 00:00:00

abstract：:Acute and complete ischemia of the hippocampi represents a rare cause of amnesia. This paper describes the features of four such cases presenting to a single tertiary care center over a 3-year period. Interestingly, in three instances, toxicology screening was positive for opioids at the time of presentation, while in...

journal_title：Neurocase

authors： Small JE,Butler PM,Zabar Y,Barash JA

更新日期：2016-10-01 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

authors： Chary C,Méary D,Orliaguet JP,David D,Moreaud O,Kandel S

更新日期：2004-06-01 00:00:00

abstract：:We present HP, a patient who following the occurrence of herpes simplex encephalitis, lost the ability to understand a subset of words while others remained preserved. Of particular interest is the fact that the meaningless items retained their lexical status. HP's immediate serial recall of meaningless words was thus...

journal_title：Neurocase

authors： Caza N,Belleville S,Gilbert B

更新日期：2002-01-01 00:00:00