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Chapter 7: Problem 3

A surgeon places an electrode on a portion of your brain and stimulates it. Immediately, your right wrist involuntarily twitches. The doctor has most likely stimulated a portion of the _________ area of your brain

Short Answer

Expert verified
The surgeon has most likely stimulated a portion of the left motor cortex area of the brain.

Step by step solution

01

Identify the function

Firstly, we discern the kind of reaction the stimulation has caused - an involuntary movement. This relates to motor functions, and so we narrow down the areas of the brain responsible for this, specifically the motor cortex.
02

Understand the brain's lateralization

Next, it's essential to understand that motor control in the brain displays contralateral organization. Meaning, the left hemisphere of brain controls the movements on the right side of the body and vice versa.
03

Combining the insights - conclusion

Lastly, combine the two pieces of information: motor function and control of the opposite side of the body. The conclusion is that if the right wrist is twitching, then the electrode is most likely stimulating the left motor cortex.

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Most popular questions from this chapter

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