Brain training games fail to improve IQ says study

Hugely popular brain training games that sell in their millions may be fun to play but do nothing to improve IQ, a study has found.

The hand-held computer games are said to "exercise" the mental muscles and over time improve general thinking and memory.



But a study involving more than 11,400 participants across the UK concluded there was "no evidence" that they can.



Although practice improved game performance, the skills learned did not transfer to unrehearsed mental tasks.



Players did no better at a series of independent mental tests than another group of volunteers given general knowledge quizzes instead of brain training.



This was true even when the tests tapped into the same areas of the brain used to play the games.



Dr Adrian Owen, one of the researchers from the Medical Research Council Cognition and Brain Sciences Unit in Cambridge, said: "Brain training, or the quest to improve brain function through regular use of computer tests, is a multimillion-pound industry, yet up until now there's been a real lack of robust evidence to show it really works.



"Our findings will no doubt surprise millions of people worldwide who do some form of brain training every day in the belief that 'exercising' their brain makes them better at everyday thinking tasks.



"In one of our computer games that tests memory by assessing how many numbers could be remembered by players, we found it would take almost four years of playing brain training games regularly each week to remember just one extra digit."



The study was carried out in collaboration with the BBC science programme "Bang Goes The Theory".



Viewers aged 18 to 60 took part in a six-week study of brain training via the BBC mass participation science website Lab UK.



A total of 11,430 volunteers trained weekly on typical game tasks aimed at improving reasoning, memory, planning, visual-spatial skills and attention.



At the beginning and end of the six-week training period, participants were given four benchmarking tests designed by scientists to be sensitive to changes in brain function.



Volunteers were split randomly into three groups, two of which practised six training games for at least 10 minutes a day three times a week. The third "control" group, used for comparison, answered general knowledge questions on the website but did not undergo any brain training.



The first group's training focussed on reasoning, planning and problem solving, while the second engaged a broad set of mental abilities commonly seen in commercial brain training games.



As participants improved their skills, the difficulty of the tasks was increased. On average, they completed 24.47 training sessions each.



Both sets of brain training volunteers showed regular improvements in the benchmarking tests, but performed no better than the control group.



In two tests, the quiz participants actually improved more than the game players.



The findings are published online by the journal Nature today. They will also be featured in a one-hour programme "Can You Train Your Brain? A Bang Goes the Theory Special" to be broadcast on BBC One at 9pm tonight.



It has been suggested that brain training games might help prevent age-related mental decline.



Professor Clive Ballard, director of research at the Alzheimer's Society, said: "This evidence could change the way we look at brain training games and shows staying active by taking a walk, for example, is a better use of our time.



"The next question is whether brain training can help maintain your brain as you get older."



Rebecca Wood, chief executive of the Alzheimer's Research Trust, said: "This suggests that 'brain training' does not improve people's cognitive ability. More research will tell us if these games have any effect on cognition as we age."



Dallas Campbell, presenter of Bang Goes the Theory, said: "Millions of us play brain training games on the assumption that expensive games make us better at everyday thinking tasks, but until now there's been no evidence to prove that these games work at all.. We set out to gather real, scientific evidence that would answer the question of whether these games are worth our money. And now we have our answer."



Some previous studies of older people and pre-school children had shown modest positive effects from brain training, said the scientists.



People who regularly played video games also out-performed non-players in some visual attention tests. However, there was no scientific evidence to support the widely held belief that brain-training computer games "improve general cognitive function in the wider population".

Start your day with The Independent, sign up for daily news emails
ebooks
ebooksA special investigation by Andy McSmith
  • Get to the point
Latest stories from i100
Have you tried new the Independent Digital Edition apps?
Independent Dating
and  

By clicking 'Search' you
are agreeing to our
Terms of Use.

iJobs Job Widget
iJobs General

Recruitment Genius: Chiropractic Assistant

£16500 per annum: Recruitment Genius: A Chiropractic Assistant is needed in a ...

Recruitment Genius: Digital Account Executive - Midlands

£18000 - £26000 per annum: Recruitment Genius: They work with major vehicle ma...

Recruitment Genius: Web Developer

£28000 - £30000 per annum: Recruitment Genius: This company provides coaching ...

Ashdown Group: Front-End UI Application Developer

£30000 - £40000 per annum + Benefits: Ashdown Group: Front-End UI Application ...

Day In a Page

Timeless drama of Championship race in league of its own - Michael Calvin

Michael Calvin's Last Word

Timeless drama of Championship race in league of its own
Where the spooks get their coffee fix: The busiest Starbucks in the US is also the most secretive

The secret CIA Starbucks

The coffee shop is deep inside the agency's forested Virginia compound
Revealed: How the Establishment closed ranks over fallout from Loch Ness Monster 'sighting'

How the Establishment closed ranks over fallout from Nessie 'sighting'

The Natural History Museum's chief scientist was dismissed for declaring he had found the monster
One million Britons using food banks, according to Trussell Trust

One million Britons using food banks

Huge surge in number of families dependent on emergency food aid
Excavation at Italian cafe to fix rising damp unearths 2,500 years of history in 3,000 amazing objects

2,500 years of history in 3,000 amazing objects

Excavation at Italian cafe to fix rising damp unearths trove
The Hubble Space Telescope's amazing journey, 25 years on

The Hubble Space Telescope's amazing journey 25 years on

The space telescope was seen as a costly flop on its first release
Did Conservative peer Lord Ashcroft quit the House of Lords to become a non-dom?

Did Lord Ashcroft quit the House of Lords to become a non-dom?

A document seen by The Independent shows that a week after he resigned from the Lords he sold 350,000 shares in an American company - netting him $11.2m
Apple's ethnic emojis are being used to make racist comments on social media

Ethnic emojis used in racist comments

They were intended to promote harmony, but have achieved the opposite
Sir Kenneth Branagh interview: 'My bones are in the theatre'

Sir Kenneth Branagh: 'My bones are in the theatre'

The actor-turned-director’s new company will stage five plays from October – including works by Shakespeare and John Osborne
The sloth is now the face (and furry body) of three big advertising campaigns

The sloth is the face of three ad campaigns

Priya Elan discovers why slow and sleepy wins the race for brands in need of a new image
How to run a restaurant: As two newbies discovered, there's more to it than good food

How to run a restaurant

As two newbies discovered, there's more to it than good food
Record Store Day: Remembering an era when buying and selling discs were labours of love

Record Store Day: The vinyl countdown

For Lois Pryce, working in a record shop was a dream job - until the bean counters ruined it
Usher, Mary J Blige and Will.i.am to give free concert as part of the Global Poverty Project

Mary J Blige and Will.i.am to give free concert

The concert in Washington is part of the Global Citizen project, which aims to encourage young people to donate to charity
10 best tote bags

Accessorise with a stylish shopper this spring: 10 best tote bags

We find carriers with room for all your essentials (and a bit more)
Paul Scholes column: I hear Manchester City are closing on Pep Guardiola for next summer – but I'd also love to see Jürgen Klopp managing in England

Paul Scholes column

I hear Manchester City are closing on Pep Guardiola for next summer – but I'd also love to see Jürgen Klopp managing in England