Former F1 world champion Fernando Alonso was so badly concussed in his pre-season crash last month that when he regained consciousness he had forgotten the past 20 years of his life , it has been reported . Alonso , who races for McLaren-Honda , crashed at 150mph on February 22 during pre-season testing and was rushed to hospital where he spent three days under observation . Asked by doctors who he was , what sort of work he was in and what he wanted to be in the future , he replied : ' I 'm Fernando , I drive go karts and I want to be a Formula 1 driver , ' it is claimed . Scroll down for video . Formula 1 ace Fernando Alonso waves to supporters as he leaves hospital on February 25 . McLaren-Honda claimed doctors found Alonso to be 'asymptomatic ' with 'no evidence whatsoever of any injury ' . Here he is pictured in hospital following the accident . Two days ago McLaren-Honda stated doctors had found the 33-year-old to be 'asymptomatic ' , with 'no evidence whatsoever of any injury ' and 'entirely healthy from neurological and cardiac perspectives ' . However , worrying reports in Spain's El Pais newspaper suggest his concussion was so severe when doctors asked him questions he thought it was 1995 and aged 13 . The paper also claimed he could not remember his F1 debut in 2001 , the victories of his beloved Real Madrid or his two world championship titles and it took him a week to recover these memories . Meanwhile , McLaren-Honda confirmed two days ago that he would be sitting out the start of the F1 season on doctors ' advice . A spokesperson said : 'His doctors have advised that he should not compete in the imminent Australian Grand Prix meeting , which will take place on March 13th , 14th and 15th . 'Fernando has understood and accepted that advice , and the two McLaren-Honda cars will therefore be driven in Australia by Fernando ’ s team-mate Jenson Button and the team ’ s test and reserve driver Kevin Magnussen . ' McLaren did not respond to MailOnline 's request for comment . The Spaniard was then airlifted by helicopter to hospital following the crash , which happened during the final day of the Formula One pre-season test at the Circuit de Barcelona Catalunya . At the time , McLaren said the two-time former world champion was 'conscious and able to speak ' while receiving first aid at the circuit 's medical centre , but had been taken to hospital for 'precautionary checks ' . After several hours of tests and observation , the team later added that Alonso was 'uninjured ' but had suffered concussion in the accident , which took place just before turn four on the track . Alonso was airlifted to hospital immediately following the crash ( pictured ) at the Circuit de Barcelona Catalunya last month . Medical staff arrived on the scene to give Alonso treatment at the side of the road after the accident . McLaren driver Alonso was taken by helicopter to hospital following the accident in Catalonia . Teenage years : Fernando Alonso , pictured here in 2001 at the age of 16 , had forgotten 20 years of his life after being concussed in a pre-season crash last month . Although he was technically given a clean bill of health after sustaining concussion in the heavy crash , the fear of 'second-impact syndrome ' forced him out of the start of the racing season . The term refers to a second concussion occurring when the effects of the first are still subsiding , potentially resulting in severe brain injuries , or even death . Although the timespan between the accident and Alonso returning to the car for first practice in Melbourne on March 13 would appear to be sufficient , he is not prepared to take any risks . Via his Twitter account , he said : 'It will be tough not to be in Australia , but I understand the recommendations . A second impact in less than 21 days 'NO ' # countdownMalaysia . ' Alonso tweeted his disappointment at not being able to make the season-opening F1 grand prix in Australia . For the Albert Park event his seat will be occupied by Kevin Magnussen , demoted to reserve driver following the Spaniard 's arrival after a full season with the team in 2014 . A thrilled Magnussen , who will partner Jenson Button in Melbourne , tweeted : 'Shame about the circumstances but still I 'm so excited to be racing in Melbourne . Ca n't wait ! ! ' Alonso rejoined McLaren this season after a disappointing fifth and final campaign with Ferrari . He won back-to-back world titles with Renault in 2005 and 2006 before spending one season at McLaren in 2007 . Alonso has 32 career grand prix victories , the last of which came at Montmelo in 2013 . Alonso 's McLaren is recovered back to the pits on the back of a truck after crashing in Barcelona .
Alonso woke from accident having forgotten past 20 years , it was reported . He was in a horrific pre-season crash in Barcelona on February 22 . The former Formula 1 world champion then spent three days in hospital . Comment: