Stella Maris Vázquez

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OBJECTIVE To examine the presence of specific regional cerebral blood flow correlates of anosognosia in patients with probable Alzheimer's disease. DESIGN Case series, group comparisons. SETTING Ambulatory care referral center. PATIENTS Twelve patients with probable Alzheimer's disease and anosognosia and 12 patients with probable Alzheimer's disease(More)
This study is based on a sample of 332 Argentinean teenagers in their last year of secondary school. In the context of the relational theory of motivation, an attempt is made to determine the motivational categories best predicting Future Time Perspective (FTP) extension. The influence of the sex, locus of control, social class, and school ethos variables(More)
Although delusions are a frequent finding in patients with Alzheimer's disease (AD), their mechanism is not well known. We carried out Tc 99m HMPAO single-photon emission computed tomography studies in 16 AD patients with delusions and 29 AD patients without delusions comparable in age, years of education, duration of illness, and severity of dementia.(More)
Five patients with a manic episode and 7 age-comparable control subjects were studied with single-photon emission computed tomography and [99mTc]d,l-hexamethylpropyleneamine oxime. Manic patients showed significantly lower blood flow in the basal portion of the right temporal lobe compared with normal control subjects. Moreover, manic patients showed a(More)
Eight patients with a clinical diagnosis of probable Alzheimer's disease, eight patients with the clinical diagnosis of frontal lobe dementia, and eight controls were examined with single photon emission tomography (SPECT) using 99Tc-HMPAO. Patients with Alzheimer's disease and those with frontal lobe dementia met DSM-III-R criteria for mild dementia and(More)
OBJECTIVE To examine neurological, neuropsychological, psychiatric, and cerebral perfusion correlates of leukoaraiosis in Alzheimer's disease. METHODS A consecutive series of patients with probable Alzheimer's disease was assessed with a comprehensive neuropsychological battery, a structured psychiatric evaluation, the unified Parkinson's disease rating(More)
A patient's major depression and Cotard's syndrome (the delusion of being dead) both resolved completely after 12 ECT treatments. A SPECT study 1 week before ECT showed reduced blood flow in the frontoparietal medial and dorsolateral frontal cortex, basal ganglia, and thalamus; SPECT 1 month after ECT showed perfusion increments in those regions. This case(More)
A comparison between 2D phase unwrapping techniques ". International Symposium on Optics and Photonics celebrado en San Diego California, USA del 13 al 17 Agosto de 2006. Large spatial self-phase modulation in castor oil enhanced by gold nanoparticles ". Nonlinear Frequency Generation and Conversions: Materials, Devices and their applications V, edited by(More)
We examined, with single photon emission tomography (SPECT) and (99mTc)-HMPAO, 18 patients with idiopathic Parkinson's disease and no dementia (PD), 12 patients with PD and dementia, 24 patients with probable Alzheimer's disease (AD), and 14 controls. While the three patient groups showed significantly lower perfusion in frontal inferior and temporal(More)
The authors examined the presence of specific quantified electroencephalographic (qEEG) changes in dementia patients with relatively lower frontal or parietal blood perfusion as demonstrated by SPECT. Over all brain regions, patients with relatively lower parietal perfusion showed significantly higher theta relative power than demented patients with(More)
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