Processing speed differences between 70- and 83-year-olds matched on childhood IQ.

We examined aging differences on three different ways of assessing processing speed: psychometric, experimental, and psychophysical. We compared large narrow-age cohorts of 70- and 83-year-old people who were matched for cognitive ability in childhood. There were decrements of substantial effect size in all processing speed assessments in the older group that were not accounted for by prior cognitive ability, health, or fitness differences, though these factors also contributed to processing speed differences. These findings confirm age-related cognitive slowing using an unusual research design, and provide evidence against recent theories characterizing aging-related cognitive decline as a myth. PMID: 27019542 [PubMed - as supplied by publisher]
Source: Intelligence - Category: Psychiatry & Psychology Authors: Tags: Intelligence Source Type: research
More News: Health | Psychology