From Medical Xpress:
Hitchcock. Credit: photographymontreal
‘Bang! You’re Dead’, a 1961 episode of Alfred Hitchcock Presents, continues to surprise – but not just with the twist in its tale. Scientists at the University of Cambridge have used the programme to show that young people respond in a similar way to events, but as we age our thought patterns diverge.
The study, published today in the journal Neurobiology of Aging, also found that older people tended to be more easily distracted than younger adults.
Age is believed to change the way our brains respond and how its networks interact, but studies looking at these changes tend to use very artificial experiments, with basic stimuli. To try to understand how we respond to complex, life-like stimuli, researchers at the Cambridge Centre for Ageing and Neuroscience (Cam-CAN) showed 218 subjects aged 18-88 an edited version of an episode from the Hitchcock TV series while using functional magnetic resonance imaging (fMRI) to measure their brain activity.
The researchers found a surprising degree of similarity in the thought patterns amongst the younger subjects – their brains tended to ‘light up’ in similar ways and at similar points in the programme. However, in older subjects, this similarity tended to disappear and their thought processes became more idiosyncratic, suggesting that they were responding differently to what they were watching and were possibly more distracted.
The greatest differences were seen in the ‘higher order’ regions at the front of the brain, which are responsible for controlling attention (the superior…