Verbal paraphasia as a source of calculation disturbance.
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Biomedical subjects
Publications and source records attributed to D F Benson.
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Positron Emission Tomography (PET) has held considerable promise as an investigative tool in the field of dementia but has yet to fulfill this promise. Review of pertinent problems in PET/dementia studies provides encouraging directions for future research.
A number of causes of progressive mental impairment show a preponderance of frontal lobe symptoms. It is proposed that these disorders can be subdivided into primary and secondary frontal dementias, based on the symptomatology and the site of major pathological disruption. An anatomical explanation, based on variations in cortical and subcortical influences, aids in understanding the clinical differences.
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