Benefits of a targeted rehabilitation of number transcoding in secondary acalculia: A single-case experimental design. Despite its potentially significant functional and emotional impact, acalculia is still too rarely assessed and managed by speech and language therapists. Research on the rehabilitation of numerical transcoding remains scarce in the literature and, despite positive results , presents a low level of evidence. The present study aims to evaluate the effectiveness of a targeted rehabilitation of numerical transcoding in two patients suffering from a chronic secondary acalculia. Two post-brain injury females with secondary acalculia took part in a single-case experimental design with multiple baseline across subjects according to a three-phase experimental protocol: baseline
Acute stroke presenting with isolated acalculia. Acalculia is defined as the inability to mentally manipulate numbers for simple calculations. It may occur in dementia, central nervous system (CNS) neoplasm, and stroke (Bermejo-Velasco and Castillo-Moreno, 2006). Lesions of the left parietal cortex are the principal cause. When acalculia occurs in stroke, it is generally associated with other deficits in speech, sensation, or motor function. We report the case of a 63-year-old male with a 1 day history of isolated acalculia that was found to have a left parietal lobe infarct with several smaller infarcts in the left occipital lobe. The diagnosis of stroke should be considered in all patients experiencing acute difficulty with mathematics, reading, or writing, even in the absence of other
Frontal Phonological Agraphia and Acalculia with Impaired Verbal Short-Term Memory due to Left Inferior Precentral Gyrus Lesion We report a patient with phonological agraphia (selective impairment of kana [Japanese phonetic writing] nonwords) and acalculia (mental arithmetic difficulties) with impaired verbal short-term memory after a cerebral hemorrhage in the opercular part of the left precentral gyrus (Brodmann area 6) and the adjacent postcentral gyrus. The patient showed phonemic paragraphia in five-character kana nonword writing, minimal acalculia, and reduced digit and letter span. Mental arithmetic normalized after 8 months and agraphia recovered to the normal range at 1 year after onset, in parallel with an improvement of the auditory letter span score from 4 to 6 over a period
Acalculia assessment in patients with glioma: A systematic review PROSPERO International prospective register of systematic reviews Print | PDF PROSPERO This information has been provided by the named contact for this review. CRD has accepted this information in good faith and registered the review in PROSPERO. The registrant confirms that the information supplied for this submission is accurate
from Loi et al. 20232) • Posterior cortical atrophy: visual problems (ocular motor apraxia, simultanagnosia), apraxias and Gertsmann syndrome (acalculia, finger agnosia, agraphia, left–right disorientation) • Frontal AD or behavioural/executive AD: symptoms similar to behavioural variant FTD (bvFTD) • Primary progressive aphasia: language difficulties such as word-finding difficulties and decreased
. While it was once believed that number processing and calculation originated from the language faculty, it is now evident that mathematical and linguistic abilities are primarily processed independently in the brain. Understanding how the healthy brain processes numerical information is crucial for gaining insights into debilitating numerical disorders, including acquired conditions like acalculia
was generally recognized as effective. The prognosis may differ in patients with different pathological mechanisms and treatments. We aim to report the effectiveness of combined treatment of low-dose, long-term immunoglobulin and mirtazapine in a pathologically proved PML case. A patient presented with progressive acalculia, right-left confusion and visual neglection was recorded. She received 10-year
Progressive multifocal leukoencephalopathy triggered by COVID-19 in a previously asymptomatic person living with undiagnosed HIV infection. This report presents the case of a 47-year-old male patient who worked as a mathematics teacher and experienced the sudden onset of disorientation, aphasia, and acalculia during an online class. The current study reveals the first documented case of Human
. The patient will acknowledge only one side. * The patient may systematically ignore one side of their body, called sensory inattention. If you ask them to draw a clock face, they omit the half contralateral to the lesion. * Dysphasia may occur. * Gerstmann's syndrome can be congenital or acquired. The four components are: * Agraphia or dysgraphia. * Acalculia or dyscalculia. * Finger agnosia
is different to both dysphasia and dysarthria, and is the loss of ability to plan and execute the oral motor tasks needed in order to speak .Inability to write is agraphia or dysgraphia if incomplete. Inability to manipulate numbers is acalculia or dyscalculia if incomplete. Difficulty reading is dyslexia.Dominant hemisphereThe speech area is in the left, dominant side of the brain in about 99% of right
been disputed[6]. In adults, the risk factors appear to be the same as those for a cerebrovascular event.Gerstmann's syndrome symptomsThere is loss or absence of four sensory abilities[7]:Loss of the ability to express thoughts in writing (agraphia, dysgraphia).Inability to perform simple arithmetical calculations (acalculia).Inability to recognise or indicate one's own or another's fingers (finger
these are the consequence of widespread enlarged PVS. A 64-year-old female patient developed consciousness disturbance, cognitive dysfunctions, fluent aphasia, agraphia, acalculia, and left-right disorientation after suffering from bronchopneumonia. Brain MRI revealed unusually widespread enlarged PVS predominantly in the left cerebral hemisphere. Following bronchopneumonia treatment, her cognitive dysfunction, fluent aphasia, agraphia, acalculia, and left-right disorientation persisted despite improvement of her general condition. Furthermore, the hypoperfusion area on single photon emission computed tomography and slow wave sites on electroencephalography were consistent with the location of enlarged PVS, indicating that severe enlarged PVS impaired focal brain functions. This case suggested that widespread
Visual and Imagery Magnitude Comparisons Are Affected Following Left Parietal Lesion We describe Jane Dow (JD), a young right-handed female with acalculia following a cerebral infarction in the left intraparietal sulcus. We investigated automatic processing of different types of magnitudes that were presented visually or through imagery. We employed the size congruity task and the mental clock
deficits, and anomia without loss of word meaning. They also presented with progressive apraxia that began at the initial stages. Some forms of posterior symptoms including acalculia, agraphia, and visuospatial deficits were also observed. Hypoperfusion was noted mainly in the left temporoparietal region, which is slightly posterior to the perisylvian area. Although our cases lack in CSF findings and PIB scan, these two cases and previous reports might suggest the existence of a subgroup of patients presenting with transcortical sensory aphasia, apraxia, and posterior symptoms (acalculia, agraphia, and visuospatial deficits) in the setting of Alzheimer's disease. This subgroup may reflect the spectrum of clinical manifestations between logopenic variant of primary progressive aphasia and posterior
deficits such as alexia, agraphia, acalculia, or apraxia Bedside examinationComponents of bedside language examination include assessments of spontaneous speech, naming, repetition, comprehension, reading, and writing. Although bedside examination can usually reveal the type of aphasia, formal cognitive testing by a neuropsychologist or speech/language therapist may be important to determine fine the term aphasia are selective, acquired disorders of reading (alexia) or writing (agraphia). Closely related to aphasia are the family of disorders called apraxias (disorders of learned or skilled movements), agnosias (disorders of recognition), acalculias (disorders of calculation ability), and more global neurobehavioral deficits such as dementia and delirium. Such related syndromes may coexist
deficits such as alexia, agraphia, acalculia, or apraxia Bedside examinationComponents of bedside language examination include assessments of spontaneous speech, naming, repetition, comprehension, reading, and writing. Although bedside examination can usually reveal the type of aphasia, formal cognitive testing by a neuropsychologist or speech/language therapist may be important to determine fine the term aphasia are selective, acquired disorders of reading (alexia) or writing (agraphia). Closely related to aphasia are the family of disorders called apraxias (disorders of learned or skilled movements), agnosias (disorders of recognition), acalculias (disorders of calculation ability), and more global neurobehavioral deficits such as dementia and delirium. Such related syndromes may coexist