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Monitoring and controlling 2 language systems is fundamental to language use in bilinguals. Here, we reveal in a combined functional (event-related functional magnetic resonance imaging) and structural neuroimaging (voxel-based morphometry) study that dorsal anterior cingulate cortex (ACC), a structure tightly bound to domain-general executive control(More)
With event-related functional MRI (fMRI) and with behavioral measures we studied the brain processes underlying the acquisition of native language literacy. Adult dialect speakers were scanned while reading words belonging to three different conditions: dialect words, i.e., the native language in which subjects are illiterate (dialect), German words, i.e.,(More)
A retrospective study was conducted of 103 balance-disturbed patients of mixed etiologies tested with electronystagmography (ENG) and computerized dynamic posturography (CDP). CDP was abnormal for 83% of the group as compared to 42% abnormal ENG results. In cases of otolithic dysfunction, ENG was more sensitive and gave specific information. Results of this(More)
Summary--Waldenstrom's macroglobulinemia is a malignant lymphoproliferative disease associated with a monoclonal macroglobulinemia. Most explanations of the cochlear and vestibular symptoms in this disease have dealt with vascular thrombotic or hemorrhagic phenomena. Five patients currently being treated for macroglobulinemia have been reviewed. Three(More)
The problems of noise are not limited to the simple annoyance of an individual. Noise can produce a permanent hearing handicap. Many everyday activities and hobbies are associated with hazardous exposure to noise. The hunter and the sport shooter are potential subjects of severe and unresolvable hearing loss.Noise-induced hearing loss develops insidiously.(More)
OBJECTIVES To determine the ability of a 10% doxycycline hyclate controlled-release polymer (Atridox) to suppress periodontopathic bacteria when placed subgingivally following scaling and root planing (Sc/Rp). METHODS Eight males and seven females, mean age 48 years, with moderate to advanced periodontitis participated in the study. In each patient,(More)
Several patients with documented permanent sensorineural hearing losses secondary to the use of cordless telephones have been evaluated. In the interests of saving space and weight, these units have the ear receiver double as the ringing or bell device. The output of the bell on all of the units we have tested to date has been in the 140-dB range on the A(More)
  • R J Keim
  • 1984
Although vertigo is the expected symptom of unilateral vestibular disease, exceptions have been observed. To determine the relative frequency of this observation, a retrospective study of patients seen over a 1-year period was done. Of the 126 patients found to have unilateral labyrinthine impairment with bithermal caloric testing, only 58 (46%)(More)
  • R J Keim
  • 1995
Some forms of dizziness, imbalance, and hearing change have been suspected to result from a vertebral basilar artery circulatory deficit. Microvascular hypoperfusion of the central nervous system (CNS) is proposed as a more likely mechanism than thromboembolic phenomena of the parent arteries. Symptoms of end-organ pathology must be differentiated from CNS(More)