Who was Walter Rudolf Hess?

Q: Who was Walter Rudolf Hess?


A: Walter Rudolf Hess was a Swiss physiologist who won the Nobel Prize in Physiology or Medicine in 1949 for his work on locating the areas of the brain involved in the control of internal organs.

Q: When and where was he born and when did he die?


A: He was born on 17 March 1881 in Frauenfeld, Switzerland and died on 12 August 1973 in Locarno, Switzerland.

Q: What kind of experiments did Hess conduct?


A: Hess conducted experiments stimulating the hypothalamus of cats with tiny electric currents to induce different behaviours ranging from excitement to apathy depending on the position of stimulation.

Q: What were some responses induced by stimulating anterior part of hypothalamus?


A: Stimulating the anterior part could induce fall of blood pressure, slowing of breathing and responses such as wanting food, wanting water, needing to pee and needing to poop.

Q: What were some responses induced by stimulating posterior part of hypothalamus?


A: Stimulating the posterior part led to extreme excitement and defensive behaviour.

Q: How did Hess's work contribute to scientist's understanding?


A: His work was an important step in scientist's understanding of neurosecretion.

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