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PSYC1001HW365.pdf - 159 Award 1.00 point Problems Adjust...

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159. Award: 1.00 point Problems? Adjust credit for all students. Required information Another part of Phineas Gage’s brain that was damaged was the cerebral cortex—a superficial layer of gray matter (neural tissue) covering most of the brain’s surface. The cerebral cortex is highly involved in memory, attention, perception, awareness, thought, language, and consciousness. The cerebral cortex is also referred to as gray matter because it contains many densely packed neurons, giving it the gray color. It varies as to how much gray matter can be damaged before behavior changes. Researchers estimate that Gage lost about 4% of his cerebral cortex in the accident. The cerebral cortex, or gray matter, contains hundreds of millions of densely packed neurons. The top layer of the cerebrum, highlighted in orange, is the cerebral cortex. You can explore this structure in APR Psychology by clicking here or by navigating to: Nervous > Dissection > Topic: Brain > View: Coronal > Structure: Cerebrum Could the loss of 4% of the cerebral cortex cause the behavior changes noted in Phineas Gage? Probably not, since so little of the cortex was lost. No, as it was mostly the frontal lobe that was damaged. Yes, the loss of any nontrivial amount of gray matter would affect behavior. It is uncertain, since gray matter covers such a wide area of the cerebrum. Multiple Choice Learning Objective: Identify the brain's levels, structures, and functions. References
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160. Award: 1.00 point Problems? Adjust credit for all students. Required information m 161. Award: 1.00 point Problems? Adjust credit for all students. Required information m One important element about Gage’s life is how he was behaving many years after his accident. Although he died of brain seizures at the age of 36, there has been speculation that he did settle into a job that required intricate hand and brain coordination: driving a stagecoach. An important factor about the brain is its plasticity: its ability to change and relearn skills. According to much research about the brain, and research on people
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