• Question: what is the hardest thing you had to do to become a scientist

    Asked by anon-250760 to Yewande, Tom, Oliver on 30 Mar 2020.
    • Photo: Tom Hartley

      Tom Hartley answered on 30 Mar 2020:


      I think the hardest thing I had to do was my PhD. It took me four years of study at university (I had already spent three years working for my first degree). A PhD is very different because you are working on a unique project, answering a question about nature that has never been solved previously. It is very exciting and interesting, but can also be quite lonely and worrying.

      My project was on how we learn new words. For example, if I say “perplisteronk” to you, you will probably be able to repeat it right back to me, but how does that happen? “Recording” and then repeating back the word must involve some changes being made in the connections between brain cells. But how do the brain cells represent the sounds we hear and the movements we make when we speak? We can make some good guesses based on the mistakes people make. For example, when they are remembering a new word, people often make spoonerisms, errors where they swap sounds around between different syllables. These happen in everyday speech (“You have tasted two worms!”), and they are similar but more common in memory for new words (“plerpisteronk”).

      So my computer model tried to explain this pattern. It was very hard, and took me about one and a half years to come up with a good idea – I spent most of that time having bad ideas that didn’t explain anything. I started to get worried it would never work, and that I would never finish. I was so anxious I felt I couldn’t go to work, and I had to see a counsellor my doctor for help with the anxiety. It felt rather like a mental marathon; I had to find the will to keep going even though I really wanted to stop.

      Somehow in the end I finished, an I was very proud of what I achieved.

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