Background and Purpose—With increasing age, assuming the upright position is more often accompanied by symptoms such as dizziness and lightheadedness, possibly as a result of a diminished oxygen supply to the brain due to impaired cerebral autoregulation. We aimed to quantify postural changes in cerebral oxygenation and systemic hemodynamics in healthy elderly and young subjects. Methods—In 18 ...

Event-related potentials were recorded from young and elderly subjects while they performed a modified auditory Sternberg memory task. Aging was associated with a decrease in frontal activation, suggesting that prefrontal alterations may be central to age-related impairments in auditory working memory. Young subjects showed significant serial position effects electrophysiologically, while elder...

UNLABELLED The aim of the study was to evaluate the prevalence and the intensity of tooth decay among the middle-aged and elderly population of Kaunas, city, and to assess the need for prostheses as well as the possibilities for oral care. MATERIAL AND METHODS During 2006-2008, we studied 1,141 inhabitants of Kaunas city; the subjects' age was 45-72 years. Oral evaluation technique proposed b...

OBJECTIVES To investigate voluntary step behavior of healthy elderly individuals during single- and dual-task conditions and to compare it with those of young subjects. DESIGN Laboratory-based study. SETTING Tests of healthy elderly and young individuals from senior community centers and from the university population in Boston, Massachusetts. PARTICIPANTS Sixty-six elderly and 12 young s...

introduction: a challenge for health care providers is that there will be a distinct rise globally in the number of elderly people aged 80 years and over. malnutrition is a well-known problem among elderly people. the aim of this study was to determine nutritional status and its associated risk factors in elderly nursing home residents in tehran, iran. methods: the cross-sectional study was car...

OBJECTIVE Normative data on transcranial magnetic stimulation (TMS)-derived measures of cortical excitability in the elderly is sparse. Nevertheless, elderly subjects are included as controls in studies utilizing TMS to investigate disease states. Age-associated increased ventricular cerebrospinal fluid CSF (vCSF) and white matter hyperintensity (WMH) MRI volumes have uncertain significance in ...

Human auditory steady-state responses (ASSRs) were recorded using stimulus rates of 78-95 Hz in normal young subjects, in elderly subjects with relatively normal hearing, and in elderly subjects with sensorineural hearing impairment. Amplitude-intensity functions calculated relative to actual sensory thresholds (sensation level or SL) showed that amplitudes increased as stimulus intensity incre...