The imagined hand-squeezing produced a response on the left-hand side of the brain, while the toe-wiggling produced one over the centre of the head.
Wales coach Warren Gatland, in the Lions coaching backroom staff in South Africa, transformed Roberts from wing to centre and now Lions head coach Ian McGeechan is certainly reaping rewards.
Jonathan Furley, who was appointed as the head of the centre in September, has been heavily involved in planning its development into a school and will become its first head teacher.
As the former head of their centre of excellence, Nielsen should be well placed to assess Australia's upcoming talent.
Mr Anastasiades, the head of the centre-right Democratic Rally (DISY) party, has promised a quick agreement on the bailout.
Phil Goodwin, head of the Centre for Transport Studies and an adviser to the government, shares the commission's scepticism about congestion targets.
Charles Pasqua, head of the centre-right Rally for France party, is being questioned on the state of his party's finances and could they be linked?
He has ruled out working with Silvio Berlusconi, the former prime minister and head of the centre-right People of Freedom party, which came second.
Most people who do visit Kafue, located in the southern centre of the country, head to Busanga Plain in the north of the park.
Cybercrime is cross-border by nature, a situation that can present a challenge to national police forces, according to the head of the centre, Troels Oerting.
"Bangkok's always been a destination despite rather than because of its airport, " says Peter Harbison, the head of the Centre for Asia Pacific Aviation in Sydney.
Wolfgang Benz, head of the Centre for Anti-Semitism Research at Berlin university, said the case was about establishing whether Mr Demjanjuk was guilty, not exacting punishment.
When the caller said he was trying to find Linda Buck, the director's suspicions were confirmed Dr Buck is the head of the centre's job search committee.
The trouble for Mr Aznar is that Spain's heart probably still lies a whisker to the left of centre, even if its head is a nudge to the right.
Mr D'Alema thinks his predecessor has been treacherous: after all, it was Mr D'Alema, back in 1995, who picked him as candidate for prime minister at the head of a centre-left front.
"He loves the artists as much as he loves their works of art, " says Jean-Jacques Aillagon, the first director of Palazzo Grassi and former head of the Centre Pompidou in Paris and Versailles.
Amenallah Messaadi is the man who has collated the figures and is head of the Burns Centre.
This will be Mr Khatami's first visit to Germany since he was head of the Islamic Centre in Hamburg at the time of the 1979 Iranian revolution.
John Hills, head of the new centre for the analysis of social exclusion at the London School of Economics, says that the challenge is to understand why people move in and out of low incomes, rather than just considering snapshots at any one time.
"If there is a supernova in our vicinity during the next couple of months, our chances of detecting and measuring the resulting gravitational waves are good, " said Professor Karsten Danzmann, head of the International Centre for Gravitational Physics, which is jointly run by the Max Planck Society and the University of Hanover.
The three were found shot in the head in a Kurdish community centre in Paris.
Dmitry Trenin, head of the Moscow Carnegie Centre, argues that Russian foreign policy under Mr Putin has always been more defensive than offensive.
The move, which had been widely expected, will allow Mr Dzurinda to head a four-party centre-right coalition of Christian Democrats, Liberals, and ethnic Hungarians.
Ghanaian centre-half Isaac Vorsah found himself head-to-head with his Hoffenheim team-mate Chinedu Obasi - and the Ghanaian will have bragging rights when they return to Germany.
As Dmitri Trenin, head of the Carnegie Moscow Centre, has argued, Russia has left the West and is trying to build up its influence in the former Soviet space.
The head of Italy's centre-left bloc has hit an impasse in his efforts to form a government and said only a mentally ill person would want to govern Italy now.
The prosthetic pegs, called intraosseous transcutaneous amputation prosthetics (Itaps) were developed by a team from University College London led by Professor Gordon Blunn, who is head of UCL's Centre for Biomedical Engineering.
The latest government campaign to distribute the pill has lowered bilharzia cases around Lampsar village from about 30 a month to less than 10, says Fatou Sarr Diouf, head of the regional health centre.
Others being appointed MBEs are Elizabeth Milburn, from West Suffolk College, for services to further education and the community, Susan Tamlyn, for heritage work and Andrew Wood, manager and head coach at Ipswich Gymnastics Centre, for sport.
This includes Professor Richard Pring, head of education at Oxford University, Dr Anne West, director of the Centre for Education Research at the London School of Economics and Professor Clyde Chitty, head of education at Goldsmiths College, University of London.
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