"It is hard to spend any time on the web and not see an ad for a website that promises to train your brain, fix your attention, and increase your IQ," psychological scientist and lead researcher Randall Engle of Georgia Institute of Technology, said.
"These claims are particularly attractive to parents of children who are struggling in school," he said.
According to Engle, the claims are based on evidence that shows a strong correlation between working memory capacity (WMC) and general fluid intelligence.
Working memory capacity refers to our ability to keep information either in mind or quickly retrievable, particularly in the presence of distraction. General fluid intelligence is the ability to infer relationships, do complex reasoning, and solve novel problems.
The correlation between WMC and fluid intelligence has led some to surmise that increasing WMC should lead to an increase in both fluid intelligence, but "this assumes that the two constructs are the same thing, or that WMC is the basis for fluid intelligence," Engle said.
The findings are published in Psychological Science, a journal of the Association for Psychological Science.
--ANI (Posted on 09-10-2013)