Search results
Results from the WOW.Com Content Network
Aging is associated with many changes in the central nervous system, such as mild atrophy of the cortex, which is considered non-pathological. Aging is also associated with many neurological and neurodegenerative diseases, such as amyotrophic lateral sclerosis , dementia , mild cognitive impairment , Parkinson's disease , and Creutzfeldt ...
The human brain shows a decline in function and a change in gene expression. This modulation in gene expression may be due to oxidative DNA damage at promoter regions in the genome. [28] Genes that are down-regulated over the age of 40 include: [citation needed] GluR1 AMPA receptor subunit; NMDA R2A receptor subunit (involved in learning)
Normal aging is associated with a decline in various memory abilities in many cognitive tasks; the phenomenon is known as age-related memory impairment (AMI) or age-associated memory impairment (AAMI). The ability to encode new memories of events or facts and working memory shows decline in both cross-sectional and longitudinal studies. [8]
In humans, ageing represents the accumulation of changes in a human being over time and can encompass physical, psychological, and social changes. [3] [4] Reaction time, for example, may slow with age, while memories and general knowledge typically increase.
Adult development encompasses the changes that occur in biological and psychological domains of human life from the end of adolescence until the end of one's life. Changes occur at the cellular level and are partially explained by biological theories of adult development and aging. [1]
One theory of the positivity effect in older adults' memories is that it is produced by cognitive control mechanisms that improve and decrease negative information due to older adults' greater focus on emotional regulation. [7] Research shows an age-related reversal in the valence of information processed within the medial prefrontal cortex ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
There is a mean-level change in the Big Five traits from age 10 to 65. [50] The trends seen in adulthood are different from trends seen in childhood and adolescence. Some research suggests that during adolescence rank-order change does occur and therefore personality is relatively unstable. [51] Gender differences are also shown before adulthood.