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prefrontal cortex
noun
: the gray matter of the anterior part of the frontal lobe that is highly developed in humans and plays a role in the regulation of complex cognitive, emotional, and behavioral functioning
Examples of prefrontal cortex in a Sentence
Recent Examples on the Web
Studies have also indicated that young people are particularly susceptible to impulse control issues due to a developing prefrontal cortex.
—Brian Curcio, Forbes, 9 Dec. 2024
At the same time, the study found that signals to the prefrontal cortex were rising.
—Sandee Lamotte, CNN, 23 Oct. 2024
According to Forcier, nitrous oxide can affect the prefrontal cortex, which contains your brain’s areas of learning, decision making, and memory.
—Katixa Espinoza, Them, 10 Oct. 2024
This leaves the prefrontal cortex—which is responsible for higher-level tasks, such as executive function, critical thinking and decision-making—with fewer available resources.
—Cheri Rainey, Forbes, 3 Dec. 2024
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Word History
First Known Use
1892, in the meaning defined above
Time Traveler
The first known use of prefrontal cortex was
in 1892
Dictionary Entries Near prefrontal cortex
Cite this Entry
“Prefrontal cortex.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prefrontal%20cortex. Accessed 28 Dec. 2024.
Medical Definition
prefrontal cortex
noun
: the gray matter of the anterior part of the frontal lobe that is highly developed in humans and plays a role in the regulation of complex cognitive, emotional, and behavioral functioning
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