Accidental Discovery During Surgery Reverses Memory Loss

Accidental Discovery During Surgery Reverses Memory Loss

A “pacemaker” for the human brain might be on the horizon

A 50 year old man, dangerously obese, goes to the hospital for experimental brain surgery to suppress his appetite. A small piece of his skull is removed, and an electrical probe inserted deep into his brain tissue. It reaches his hypothalamus and current is switched on. Suddenly the patient — awake through the procedure — begins to speak uncontrollably about events in his past, events he had long forgotten. He remembers a day’s walk in the park 30 years ago, complete with what people were wearing, all in vivid color. He sees them speaking to him, every motion they made. The intensity and level of detail of the memories is frightening.

The scene may read like the script of a bad science fiction flick but it comes from an unidentified patient at Ontario’s Toronto Western Hospital. No one was more astonished than the man’s doctors, who began to experiment further on him. Over the next few weeks, they continued testing. His ability to both learn and remember was substantially increased when the electrodes were turned on. Continuous stimulation also had a residual effect — after the electrodes were off, there was still a slight benefit.

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Electrode being inserted into brain

One thought on “Accidental Discovery During Surgery Reverses Memory Loss

  1. Robert

    Interesting article. I think the surgery is stone age stuff though. I can just imagine that with in the next twenty years they won’t have to even open the skull. (Sheesh! That picture is a buzzkiller). I wonder if they will be using nano technology to do this in the future?

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