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This quiz consists of 5 multiple choice and 5 short answer questions through Hand, Eye and Sky.

Multiple Choice Questions

1. How does the brain teach itself in order to juggle?
(a) By requiring the juggler to repeat a motion over and over.
(b) By making the brain and hand work together.
(c) By learning how to trigger groups of muscles rather than individual muscles.
(d) By learning how to trigger individual muscles rather than groups of muscles.

2. What operator has to do to anticipate load weight and wind changes?
(a) A grain elevator operator.
(b) An elevator operator.
(c) A bulldozer operator.
(d) A crane operator.

3. What does the author say comes to life even before you rise out of bed in the morning?
(a) Hands and arms.
(b) Your digestive juices.
(c) Your brain.
(d) Your dog.

4. According to Charles Sherrington, what are sensors to the target object?
(a) The retina and the palm.
(b) The retina and fingertips.
(c) The palm and the nerves in the cerebral cortex.
(d) The fngertips and the palm.

5. Who is Sir Charles Bell?
(a) A famous Scottish composer.
(b) The only British doctor who performs surgery even after the loss of one hand.
(c) A famous Irish composer.
(d) A Scottish surgeon who is a contemporary of Charles Darwin.

Short Answer Questions

1. What did the brain do when the forelimbs were no longer used to walk?

2. To what was the pre-human arm metaphorically compared?

3. What does Duchenne figure out how to demonstrate?

4. What does juggling as learned and performed by Percelly provide?

5. What does the neocortex size reliably predict?

(see the answer key)

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