Language and speech disorders, including dysarthria, reduced spontaneous speech, impaired syntactic complexity, and impaired comprehension, are common, as are visuospatial abnormalities. Both recall and recognition memory are usually impaired in cortical dementia, whereas recognition memory is relatively preserved in subcortical dementia. D. La experiencia escolar se coloca en los límites de la norma (es decir, no se detectan graves insuficiencias en la instrucción recibida). En cambio en operaciones más simples como “2+4” o “5×6” el resultado se puede recuperar directamente de la memoria semántica (como si fuera un significado global), sin necesidad de ejecutar mentalmente la operación.

doi: 10.1017/S1355617705050113, Gerstmann’s syndrome information sheet. Una dificultad en el sistema numérico puede estar en la base de las dificultades en la lectura, escritura y repetición de los números, que se observa en la mayoría de los niños con discalculia que realizan numerosos errores de transcodificación. However, some deficits typically remain for the rest of a person’s life. Patients tend to present either with an alien limb phenomenon and associated motor features (tremor, rigidity, grasp reflex, apraxia, and myoclonus) or with an akinetic-rigid syndrome similar to Parkinson’s disease. Test the deep tendon reflexes by striking the tendon briskly with the reflex hammer; the pointed end of the triangular head is generally used (Figure 4-63). This conclusion is corroborated by the impaired performance of the patient reported by Carota et al. A final interesting group of patients are those with lesions in the left angular gyrus who sometimes show Gerstmann syndrome. A final interesting group of patients are those with lesions in the left angular gyrus who sometimes show Gerstmann syndrome. People with acalculia are unable to perform even basic math operations, such as identifying the greater of two numbers or adding two numbers together. What are the clinical features of Huntington’s dementia? Typically bradyphrenia, dysnomia, and frontal executive dysfunction are present, and depression is common. Incidental memory (details not related to the task at hand, such as what the examiner was wearing) is better in subcortical dementias. Patients with (subcortical) Parkinson’s disease may show atrophy of cortical cells.

Trastornos del aprendizaje. Now its worse. The dementia is not clearly present in all patients and is difficult to characterize because the associated visual scanning disorder interferes with testing. Il termine acalculia è apparso per la prima volta nel 1925, proposto da Henschen, il quale la definì come “un disturbo acquisito della capacità di calcolo, conseguente a una lesione cerebrale”. What are the clinical features of the dementia associated with progressive supranuclear palsy (PSP)? Primary acalculia is a "pure" condition in which an individual can neither comprehend mathematical concepts nor perform mathematical operations. El subsistema de producción presenta características especulares con respecto al subsistema de comprensión (distinción entre código arábigo y verbal). B. Las puntuaciones de precisión y comprensión de la lectura y ortografía están en los límites de la norma (más o menos dos desviaciones estándar de la media). Ten of these children were found to have all of the components of Gerstmann Syndrome as well as constructional difficulties.

In addition to the prominence of this cluster of symptoms, Gerstmann noted cases with constructional problems, word finding difficulty, mild reading difficulty, color naming problems, and/or absence of optokinetic nystagmus. Semenza, C., Miceli, L., & Girelli, L. (1997). Frontal executive functions are lost in proportion to the overall dementia in cortical processes but are prominently affected in subcortical dementia. Cummings JL: Subcortical Dementia. Finger localization and calculation are presumed to be the precursors of right–left orientation and the ability to write. ... Secondo l'International Academy for Research in Learning Disabilities, soffrirebbe di discalculia evolutiva lo 0,5% della popolazione scolastica. Report the results using a plus scale (Table 4-15), with 0 representing complete absence of the reflex, 2+ representing a normal response, and 4+ representing marked hyperreactivity. exploración y organización visoespacial (estímulos en entrada); atención visual (tener en cuenta los números y símbolos matemáticos); razonamiento y juicio numérico (planteamiento del problema u operación); recuerdo y aplicación de algoritmos (recordar las reglas y pasos para realizar una operación o resolver un problema); memoria y estimación de cantidades (si por ejemplo tengo que dividir “20:3”, podría estimar el resultado diciendo que es “6 y algo” en cuanto me he aproximado por ensayos y errores, multiplicando “7×3” y “6×3”. (1991). abduction: Movement away from the midline of the body, abstract reasoning: The ability to think beyond concrete terms, adduction: Movement toward the midline of the body, affect: The external expression of emotion, anosmia: Complete loss of the sense of smell, anosognosia: The inability to recognize one’s own impairment, asterixis: Involuntary movements characterized by nonrhythmic flapping of the extremities, athetosis: Involuntary movements characterized by slow, twisting irregular motions, blocking: Sudden interruption of speech in midsentence, chorea: Involuntary movement characterized by brief, rapid, irregular, jerky motions, circumstantiality: An abnormal thought process characterized by unnecessary detail that delays reaching the point of the thought, clanging: The use of words on the basis of sound instead of meaning, clonus: Rhythmic oscillation between extension and flexion, coma: An altered state of consciousness characterized by complete loss of consciousness, unresponsiveness to stimuli, and absence of voluntary movement, confabulation: Fabrication of facts or events to fill gaps in the memory, confusion: An abnormality of consciousness characterized by mental slowness, inattentiveness, and incoherent thought patterns, decerebrate rigidity: An abnormal body posture observed in comatose patients characterized by clenched jaws, extension of the neck and legs, adduction of the arms, pronation of the forearms, and flexion of the wrists and fingers, decorticate rigidity: An abnormal body posture observed in comatose patients characterized by flexion of the fingers and wrists and extension and internal rotation of the legs, delirium: An abnormality of consciousness characterized by confusion, agitation, and hallucinations, dysarthria: Poorly coordinated, irregular speech, dysphasia: Hesitancy and error in choosing words when speaking, dyspraxia: Difficulty coordinating body movements, dystaxia: Difficulty with muscle coordination, dystonia: Abnormal slow, twitching, irregular movements, echolalia: Repetition of words or phrases spoken by others, eversion: The turning of the toes onto the great toe (bottom of the foot turned outward), extension: The bending of a joint to bring the joint parallel to the long axis, fasciculations: Involuntary movements characterized by fine twitching that rarely moves a joint, flexion: The bending of a joint to bring the parts of the joint into close approximation, flight of ideas: An almost continuous flow of accelerated speech with quick changes of subject, hemianopsia: A visual field defect associated with disorders of the optic chiasm or tract, hemiplegia: Paralysis of one side of the body, incoherence: An abnormal thought process characterized by illogical connections and quick changes of subject, intention tremor: Involuntary movements characterized by tremors that are absent at rest but appear with intentional movement, inversion: The turning of the toes onto the small toes (bottom of the foot turned inward), judgment: The ability to compare and evaluate alternatives, loose association: Abnormal thought process characterized by repeated shifting to unrelated subjects, myoclonus: Involuntary movements characterized by sudden, brief, unpredictable jerks, neologism: The use of invented words or the use of words with new meanings, nystagmus: Involuntary oscillation of the eyeball; described as lateral if the eyeball oscillates from side to side, vertical if the eyeball oscillates up and down, and rotatory if the eyeball oscillates in a circle, paraparesis: A slight degree of lower extremity paralysis, paraplegia: Paralysis of the lower extremities and trunk, perseveration: Persistent repetition of words or phrases, postural tremor: Involuntary tremor that occurs when the affected part maintains a given position, pronation: Placement into a downward-facing position, quadriplegia: Paralysis of the upper and lower extremities, recent memory: Memory of information acquired a few hours or days previously, remote memory: Memory of information from the distant past, resting or static tremor: Involuntary movement at rest, scotoma: A visual field defect associated with disorders of the optic nerve, stereognosis: The ability to identify, by touch, small objects placed in the hand, stupor: An abnormal state of consciousness characterized by reduced mental and physical activity and reduced response to stimuli, supination: Placement into an upward-facing position, thought content: What a person thinks about, tics: Involuntary movements characterized by brief, repetitive movements at irregular intervals, Rachelle S. Doody, in Neurology Secrets (Sixth Edition), 2017.



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