Several authors have suggested that dementia screening tests may be biased against low levels of education, whereas others find that a low level of education is a genuine risk factor for dementia. The present paper attempts to reconcile these conflicting views by examining item bias and test bias indices of the mini mental state examination (MMSE). Psychometric calculations and receiver operati...

Purpose of the study We consider the points at which cognitive impairment may impact on the pathway to loneliness for older people, through impeding social interaction with family and friends, or by interfering with judgments concerning satisfaction with relationships. Design and methods We conceptualize a mediation model anticipating that social resources (LSNS-6) will mediate the pathway be...

PURPOSE Homocysteine has been associated with cognitive impairment and various psychiatric symptoms. This study was designed to clarify whether a relationship exists between the serum levels of homocysteine and the behavioral and psychological symptoms of dementia. METHODS Patients with Alzheimer's disease (n=77) and control subjects (n=37) were included in this study. History taking, physica...

INTRODUCTION The influence of mixed dietary patterns on cognitive changes is unknown. METHODS A total of 2223 dementia-free participants aged ≥60 were followed up for 6 years to examine the impact of dietary patterns on cognitive decline. Mini-mental state examination (MMSE) was administered. Diet was assessed by a food frequency questionnaire. By factor analysis, Western and prudent dietary ...

We examine codes, over the additive Gaussian noise channel, designed for for reliable communication at some specific signal-to-noise ratio (snr) and constrained by the permitted MMSE at some lower snr. We show that the maximum possible rate is the one attained by superposition codebooks. Moreover, the MMSE function of codes attaining this maximum rate under the MMSE constraint is completely def...

BACKGROUND AND PURPOSE Stenosis of the carotid artery may be a cause of reduced cognitive performance that can be ameliorated with placement of a stent. The goal of this study was to measure cognitive performance and speed of psychomotor performance prospectively before and after carotid stent placement. MATERIALS AND METHODS Patients referred for stent placement for a unilateral carotid arte...

[Purpose] This study examined the clinical usefulness of the clock drawing test applying Rasch analysis for predicting the level of cognitive impairment. [Subjects and Methods] A total of 187 stroke patients with cognitive impairment were enrolled in this study. The 187 patients were evaluated by the clock drawing test developed through Rasch analysis along with the mini-mental state examinatio...

EXAMINATION of the mental state is essential in evaluating psychiatric patients.1 Many investigators have added quantitative assessment of cognitive performance to the standard examination, and have documented reliability and validity of the several “clinical tests of the sensorium”.2*3 The available batteries are lengthy. For example, WITHERS and HINTON’S test includes 33 questions and require...

Objectives To study the criterion validity of the Mini-Cog in low educational level elderly.Design: Cross-sectional and validation design.Setting: Policlínica Piquet Carneiro, an outpatient unit of Rio de Janeiro State University Hospital, in Brazil.Participants: A convenient sample consisting of 306 individuals, 65 yrs or older, selected from April 8th to July 15th, 2002. Methods All partici...

objective: the current study was conducted to compare the efficacy and side effects of bifrontal electrode placement with standard bitemporal electrode placement in the treatment of patients with major depression. method: eighty nine patients with major depression were treated with a course of bifrontal or bitemporal ect. all patients received 8 sessions of ect treatment; and the hamilton ratin...