Exaggerated color perception in a patient with visual form agnosia.

abstract：:Vocal emblems, such as shh and brr, are speech sounds that have linguistic and nonlinguistic features; thus, it is unclear how they are processed in the brain. Five adult dextral individuals with left-brain damage and moderate-severe Wernicke's aphasia, five adult dextral individuals with right-brain damage, and five ...

journal_title：Neurocase

authors： Neumann-Werth Y,Levy ES,Obler LK

更新日期：2013-01-01 00:00:00

abstract：:A 68-year-old man had a cerebral infarction affecting the right parietal lobe, right insula, and the left prefrontal region. On admission, left hand tactile extinction was noted when the hands were placed both in anatomical and crossed positions, but was noted only in crossed positions from day 20 and later. Five mont...

journal_title：Neurocase

authors： Asada T,Takeda K,Okiyama R,Isozaki E,Fukuyama H

更新日期：2014-01-01 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

authors： Cipolotti L,Bird CM,Glasspool DW,Shallice T

更新日期：2004-12-01 00:00:00

abstract：:Chediak-Higashi syndrome (CHS) is a rare autosomal disorder characterized by immunodeficiency, albinism, and progressive neurologic abnormalities. While survivors of the childhood-onset disease are known to exhibit learning disabilities and neuropsychiatric disorders followed by middle-age dementia, we lack detailed d...

journal_title：Neurocase

authors： Yliranta A,Mäkinen J

更新日期：2020-12-09 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

authors： Boutsen L,Humphreys GW

更新日期：2003-06-01 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 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

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

authors： Utianski RL,Duffy JR,Savica R,Whitwell JL,Machulda MM,Josephs KA

更新日期：2018-04-01 00:00:00

abstract：:A 51-year-old right-handed man developed hypersexuality after a second right temporal lobectomy to treat epilepsy. His hypersexuality started with increased marital intercourse and masturbation but he later downloaded child pornography. Hyperphagia and distractibility, other features of the Kluver-Bucy syndrome, also ...

journal_title：Neurocase

authors： Devinsky J,Sacks O,Devinsky O

更新日期：2010-04-01 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：UNLABELLED:Neuropathologic change underlying primary progressive aphasia (PPA) most commonly includes one of the frontotemporal lobar degenerations, such as FTLD-tau or FTLD-ubiquitin. The next most frequent etiology of PPA is Alzheimer's disease (AD). We describe 5 subjects with clinical diagnoses of semantic dementia...

journal_title：Neurocase

authors： Chow TW,Varpetian A,Moss T,Vinters HV,Marquez S,Miller C

更新日期：2010-02-01 00:00:00

abstract：:Previous research suggests that the noradrenergic system modulates flexibility of access to the lexical-semantic network, with propranolol benefiting normal subjects in lexical-semantic problem solving tasks. Patients with Broca's aphasia with anomia have impaired ability to access appropriate verbal output for a give...

journal_title：Neurocase

authors： Beversdorf DQ,Sharma UK,Phillips NN,Notestine MA,Slivka AP,Friedman NM,Schneider SL,Nagaraja HN,Hillier A

更新日期：2007-08-01 00:00:00

abstract：:Dissociative identity disorder (DID) is probably the most disputed of psychiatric diagnoses and of psychological forensic evaluations in the legal arena. The iatrogenic proponents assert that DID phenomena originate from psychotherapeutic treatment while traumagenic proponents state that DID develops after severe and ...

journal_title：Neurocase

authors： Reinders AA

更新日期：2008-01-01 00:00:00

abstract：:Children (aged 9-12) training in an El Sistema-inspired program (OrKidstra) and a matched comparison group participated in an auditory Go/No-Go task while event-related potentials (ERPs) were recorded. Entire-sweep waveform patterns correlated with known ERP peaks associated with executive and other cognitive function...

journal_title：Neurocase

authors： Hedayati N,Schibli K,D'Angiulli A

更新日期：2016-12-01 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

authors： Raz A,Packard MG,Alexander GM,Buhle JT,Zhu H,Yu S,Peterson BS

更新日期：2009-10-01 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

authors： Sánchez-Valle R,Forman MS,Miller BL,Gorno-Tempini ML

更新日期：2006-12-01 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：: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

authors： Hanna-Pladdy B,Heilman KM

更新日期：2010-04-01 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

authors： Yang J,Zhao R,Zhang Q,Pruessner JC

更新日期：2013-01-01 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

authors： Smith ML,Thawani N,Johnstone B,Stucky R

更新日期：2010-08-01 00:00:00

abstract：:A striking special ability in arranging picture stories was reported in an Asperger child (C.M.) showing an exceptional performance on Wechsler picture arrangement subtest. Neuropsychological examination did not disclose visuoperceptual and spatial defects, or working memory, attention and executive disorders, but rev...

journal_title：Neurocase

authors： Conson M,Salzano S,Grossi D

更新日期：2011-08-01 00:00:00

abstract：:An investigation of non-verbal auditory comprehension in two patients with global aphasia following stroke is reported. The primary aim of the investigation was to establish whether refractory access disorders can affect non-verbal input modalities. All previous reports of refractoriness, a cognitive syndrome characte...

journal_title：Neurocase

authors： Crutch SJ,Warrington EK

更新日期：2008-01-01 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 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

authors： Cappelletti M,Leff AP,Price CJ

更新日期：2012-01-01 00:00:00

abstract：:A current debate in the literature is whether all declarative memories and associated memory processes rely on the same neural substrate. Here, we show that H.C., a developmental amnesic person with selective bilateral hippocampal volume loss, has a mild deficit in personal episodic memory, and a more pronounced defic...

journal_title：Neurocase

authors： Rosenbaum RS,Carson N,Abraham N,Bowles B,Kwan D,Köhler S,Svoboda E,Levine B,Richards B

更新日期：2011-10-01 00:00:00

abstract：:Monocular patching might improve perceptual-attentional, not motor-intentional deficits in a patient with chronic post-stroke left spatial neglect. Performing a line-cancellation task, his omission errors were associated with a perceptual-attentional 'where' deficit, while perseverative errors were associated with 'ai...

journal_title：Neurocase

authors： Khurshid S,Longin H,Crucian GP,Barrett AM

更新日期：2009-08-01 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

authors： Pisanuwongrak K,Julayanont P,Heilman KM

更新日期：2020-08-01 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：: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

authors： Heled E,Sverdlik A,Agranov E

更新日期：2014-01-01 00:00:00

abstract：:The purpose of the present study was to investigate differences in brain activation with functional magnetic resonance imaging (fMRI) during imagery of painful and non-painful 'finger movements' and 'hand positioning' in a subject with an amputated arm. The subject was a right-handed man in his mid-thirties who lost h...

journal_title：Neurocase

authors： Rosén G,Hugdahl K,Ersland L,Lundervold A,Smievoll AI,Barndon R,Sundberg H,Thomsen T,Roscher BE,Tjølsen A,Engelsen B

更新日期：2001-01-01 00:00:00