User:Rifasj123/sandbox: Difference between revisions
Frontal lobe |
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Frontal Lobe |
=Frontal Lobe= |
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The frontal lobe is an area of the brain located at the front of each cerebral hemisphere behind the forehead, positioned anterior to the central fissure or sulcus (and thus the temporal and parietal lobes).<ref>Restak, Richard M.. The brain. Toronto: Bantam Books, 1984</ref> They play a critical role in the planning and execution of movements and actions. |
The frontal lobe is an area of the brain located at the front of each cerebral hemisphere behind the forehead, positioned anterior to the central fissure or sulcus (and thus the temporal and parietal lobes).<ref>Restak, Richard M.. The brain. Toronto: Bantam Books, 1984</ref> They play a critical role in the planning and execution of movements and actions. |
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Anatomy |
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The frontal lobe is very involved in planning, memory search, motor control, speech control, reasoning, and emotions. It is also believed to have a very important role in the development of an individual's personality and behavior. |
The frontal lobe is very involved in planning, memory search, motor control, speech control, reasoning, and emotions. It is also believed to have a very important role in the development of an individual's personality and behavior. |
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Nevertheless, it can be divided into four central cortexes, namely the prefrontal, orbitofrontal, primary motor, and premotor. |
Nevertheless, it can be divided into four central cortexes, namely the prefrontal, orbitofrontal, primary motor, and premotor. |
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Prefontal Cortex |
==Prefontal Cortex== |
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The prefrontal cortex is crucial for the performance of almost all activities that require critical and intelligent thinking. It tends to be larger in primates than in other mammals, especially large in humans, its size being directly correlated with a higher level of mental planning and performance in different animals. |
The prefrontal cortex is crucial for the performance of almost all activities that require critical and intelligent thinking. It tends to be larger in primates than in other mammals, especially large in humans, its size being directly correlated with a higher level of mental planning and performance in different animals. |
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Most mammals operate mostly on instinct and don’t live in complexly differentiated social groups. Primates, on the other hand, have complex social hierarchies that affect gender, as well as many other social phenomena. Humans build tools, effectively modify their environments, and have specific relationships with up to hundreds of other individuals. These skills, as well as many others, are only some of the many that are specifically orchestrated in this region of the brain. |
Most mammals operate mostly on instinct and don’t live in complexly differentiated social groups. Primates, on the other hand, have complex social hierarchies that affect gender, as well as many other social phenomena. Humans build tools, effectively modify their environments, and have specific relationships with up to hundreds of other individuals. These skills, as well as many others, are only some of the many that are specifically orchestrated in this region of the brain. |
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Orbitofrontal Cortex |
==Orbitofrontal Cortex== |
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<ref> |
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Revision as of 05:59, 28 December 2012
Env Sci Resources http://www.ed.gov.nl.ca/edu/k12/curriculum/documents/science/highschool/ES3205_student_text_chapter_1.pdf https://sites.google.com/a/edtools.psd401.net/millsj/ap-environmental-science/APES-Labs-1 http://www.smrhs.org/page.cfm?p=554
Frontal Lobe
The frontal lobe is an area of the brain located at the front of each cerebral hemisphere behind the forehead, positioned anterior to the central fissure or sulcus (and thus the temporal and parietal lobes).[1] They play a critical role in the planning and execution of movements and actions.
Functions
The frontal lobe is very involved in planning, memory search, motor control, speech control, reasoning, and emotions. It is also believed to have a very important role in the development of an individual's personality and behavior.
A story that has reached the status of legend among neuroscientists is that of Phineas P. Gage, a worker who experienced a metal rod tearing through his left cheek bone and out of the top of his skull, destroying a substantial amount of his frontal lobe. This apparently caused a dramatic change in his temperament from someone described by others as "dependable, industrious, and well liked" to "restless, loud, profane, and impulsive." It illustrates the frontal lobes as major players in determining personality, normal social behavior, and inhibition.
Nevertheless, it can be divided into four central cortexes, namely the prefrontal, orbitofrontal, primary motor, and premotor.
Prefontal Cortex
The prefrontal cortex is crucial for the performance of almost all activities that require critical and intelligent thinking. It tends to be larger in primates than in other mammals, especially large in humans, its size being directly correlated with a higher level of mental planning and performance in different animals.
Most mammals operate mostly on instinct and don’t live in complexly differentiated social groups. Primates, on the other hand, have complex social hierarchies that affect gender, as well as many other social phenomena. Humans build tools, effectively modify their environments, and have specific relationships with up to hundreds of other individuals. These skills, as well as many others, are only some of the many that are specifically orchestrated in this region of the brain.
Orbitofrontal Cortex
<ref>
- ^ Restak, Richard M.. The brain. Toronto: Bantam Books, 1984