Three-time world champion's personality said to have changed following crash in December...

The family of three-time world champion track cyclist Kelly Catlin have donated her brain to medical researchers to try and establish whether concussion was a factor in her decision to take her own life last week.

The 23-year-old’s brain has been given to Boston University's Chronic Traumatic Encephalopathy (CTE) Center, reports the Denver Post, which adds that clinical and pathological research could take up to 12 months to complete.

Her father Mark Catlin said: “Our family decided to have a neuropathologic examination performed on Kelly’s brain to investigate any possible damage caused by her recent head injury and seek explanations for recent neurologic symptoms.”

The CTE Center, which has a ‘brain bank’ comprising more than 600 brains, says it is “the largest tissue repository in the world focused on traumatic brain injury,” with brains of deceased athletes “examined neuropathologically for evidence of CTE or other disorders of the central nervous system.”

Catlin was found dead in her room at Stanford University in California last Thursday. She had recently written of her struggles to balance her postgraduate studies with her successful career in cycling, which saw her help the USA win three team pursuit world titles from 2016-18 as well as Olympic silver in Rio three years ago.

> Three-time world champion Kelly Catlin dies aged 23

Since her death, members of her family have said that they became concerned about changes in her personality since she sustained concussion in a crash in December, and have revealed that she attempted suicide for the first time in January.

Retired pathologist Mr Catlin said: “She was not the Kelly that we knew. She spoke like a robot. We could get her to talk, but we wondered, ‘what has happened to our Kelly?'

“Everything was open to her, but somehow her thinking was changed and she couldn’t see beyond, I guess, her depression.

“After her concussion, she started embracing nihilism. Life was meaningless. There was no purpose. This was a person with depression.

“For her, she could no longer concentrate on her studies or train as hard. She couldn’t fulfill what she felt were her obligations to herself, she couldn’t live up to her own standards.

“She couldn’t realise that what she needed to do was get away and rest, heal. We were all searching for the magic words, that life was worth living,” he added.

Anyone feeling emotionally distressed or suicidal can call Samaritans for help on 116 123 or email jo [at] samaritans.org in the UK. In the US, call the Samaritans branch in your area or 1 (800) 273-TALK.

Born in Scotland, Simon moved to London aged seven and now lives in the Oxfordshire Cotswolds with his miniature schnauzer, Elodie. He fell in love with cycling one Saturday morning in 1994 while living in Italy when Milan-San Remo went past his front door. A daily cycle commuter in London back before riding to work started to boom, he's been news editor at road.cc since 2009. Handily for work, he speaks French and Italian. He doesn't get to ride his Colnago as often as he'd like, and freely admits he's much more adept at cooking than fettling with bikes.