When Wilder Penfield Pioneered a Technique of Directly Stimulating Areas

question 5

Multiple Choice

When Wilder Penfield pioneered a technique of directly stimulating areas of the brain with an electrical probe and observing the behavior of the patient, he found that ______.

• A)the brain itself contains a large number of nociceptors which override signals coming from within the skin
• B)when he stimulated regions of somatosensory cortex, the patients had tingling experiences in specific areas along the skin
• C)when he stimulated regions of posterior parietal cortex, the patients experienced pain, usually centered internally
• D)patient discomfort reached such high levels that he abandoned using this technique

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