منابع مشابه
When does age-related cognitive decline begin?
Cross-sectional comparisons have consistently revealed that increased age is associated with lower levels of cognitive performance, even in the range from 18 to 60 years of age. However, the validity of cross-sectional comparisons of cognitive functioning in young and middle-aged adults has been questioned because of the discrepant age trends found in longitudinal and cross-sectional analyses. ...
متن کاملDoes Mental Productivity Decline with Age? Evidence from Chess Players
Does Mental Productivity Decline with Age? Evidence from Chess Players We use data on international chess tournaments to study the relationship between age and mental productivity in a brain-intensive profession. We show that less talented players tend to leave the game in the earliest phases of their career. When the effects of age on productivity vary with unobserved ability, commonly used fi...
متن کاملDoes job-related training performance decline with age?
The meta-analytic review presents the findings of a project investigating the relationship between age and job-related training outcomes. The analysis is based on 83 effect sizes derived from 6,610 individuals. Results showed poorer training performance for older adults. In general, older adults, relative to younger adults, showed less mastery of training material (r = -.26), completed the fina...
متن کاملAge-related decline in actomyosin function.
To understand the molecular basis of the functional decline in aging muscle, we examined the functional (actomyosin ATPase) and chemical (cysteine content) changes in actin and myosin purified from the muscles of young (4- to 12-month-old) and old (27- to 35-month-old) Fisher 344 rats. Using the soluble, catalytically active myosin fragment, heavy meromyosin (HMM), we determined the maximum rat...
متن کاملDecline in semicircular canal and otolith function with age.
OBJECTIVE To characterize the physiologic nature of the vestibular dysfunction that occurs with the normative aging process. STUDY DESIGN Cross-sectional study. SETTING Tertiary care academic medical center. PATIENTS Fifty individuals age 70 years and above. INTERVENTIONS Head thrust dynamic visual acuity testing and cervical and ocular vestibular-evoked myogenic potential (VEMP) testin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 2003
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(03)81822-3