Psychology & Psychiatry

Video games can boost children's intelligence: study

Researchers at Karolinska Institutet in Sweden have studied how the screen habits of U.S. children correlates with how their cognitive abilities develop over time. They found that the children who spent an above-average time ...

Ophthalmology

Poor eyesight unfairly mistaken for brain decline

Millions of older people with poor vision are at risk of being misdiagnosed with mild cognitive impairments, according to a new study by the University of South Australia.

Alzheimer's disease & dementia

FDA OKs marketing of new test to help diagnose Alzheimer's disease

The U.S. Food and Drug Administration granted marketing approval for the Lumipulse G β-Amyloid Ratio (1-42/1-40) test, the first in vitro diagnostic test for early detection of amyloid plaques associated with Alzheimer disease, ...

Genetics

Epigenetic 'age' predicts cognitive function

Epigenetic markers of cognitive aging can predict performance on cognitive tests later in life, according to a study published in the journal Aging.

Psychology & Psychiatry

Researchers develop scoring tool to measure severity of delirium

Delirium is a serious change in brain function that affects up to 64% of older medical patients and up to 50% of older surgical patients. It can manifest as sudden confusion, agitation, memory loss or hallucinations and delusions. ...

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Cognitive test

Cognitive tests are assessments of the cognitive capabilities of humans and animals. Tests administered to humans include various forms of IQ tests; those administered to animals include the mirror test (a test of visual self-awareness) and the T maze test (which tests learning ability). Such study is important to research concerning the philosophy of mind and psychology, as well as determination of human and animal intelligence.

Modern cognitive tests originated through the work of Sir Francis Galton who coined the term "mental tests". Consistent with views of the late nineteenth century, most of his measurements were physical and physiological, rather than "mental". For instance he measured strength of grip and height and weight. He established an "Anthropometric Laboratory" in the 1880's where patrons paid to have physical and physiological attributes measured to estimate their intelligence. So, his measures of mental or cognitive components were not successful in modern terms, although his indirect effects were arguably enormous. His work influenced later researchers who developed better measures of intelligence using cognitive tests (see Alfred Binet , Raymond Cattell and Lewis Terman).

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