Frontal Lobe Brain Injury: Difference between revisions
Wendy Walker (talk | contribs) No edit summary |
Wendy Walker (talk | contribs) No edit summary |
||
| Line 21: | Line 21: | ||
*Broca's Area | *Broca's Area | ||
=== Primary Motor Cortex === | === Primary Motor Cortex === | ||
'''Input: '''Basal gangliam thalamus, premotor cortex (in the frontal lobe), sensory cortex (in the parietal lobe) | |||
'''Output:''' | '''Input: '''Basal gangliam thalamus, premotor cortex (in the frontal lobe), sensory cortex (in the parietal lobe) | ||
'''Output: ''' | |||
== Function<br> == | == Function<br> == | ||
Revision as of 00:44, 22 June 2016
Original Editor - Wendy Walker
Lead Editors - Wendy Walker, Lucinda hampton, Aminat Abolade, Kim Jackson, WikiSysop and Claire Knott
Introduction[edit | edit source]
In evolutionary terms the frontal cortex has been the most recent to evolve, and the frontal lobes are the area of brain which has developed greatly in humans, differentiating us from other mammals. These lobes integrate the other brain areas, and are particularly responsible for higher level thinking and cognitive skills such as planning, evaluating likely outcomes, multitasking, performing risk assessment and the niceties of social interaction; it is the area of brain which deals in abstract concepts.
Anatomy
[edit | edit source]
The Frontal Lobes account for approximately one third of human brain mass.
They lie at the front of the brain, anterior to the parietal lobes and superior to the temporal lobe.
Each frontal lobe (left and right) is generally considered to have 4 distinct divisions:
- Motor and premotor cortex
- Prefrontal cortex
- Orbital [AKA orbitofrontal) cortex
- Broca's Area
Primary Motor Cortex[edit | edit source]
Input: Basal gangliam thalamus, premotor cortex (in the frontal lobe), sensory cortex (in the parietal lobe)
Output:
Function
[edit | edit source]
Author Mesulam suggests that the frontal lobe is the part of the brain which modifies and imposes constraints on reflexive behaviours[1], and this control develops as the infant brain grows[2] and the frontal lobes become larger and more active.
- Motor cortex = voluntary movement
- Premotor cortex = storage of motor patterns & voluntary activities
- Prefrontal cortex = ability to concentrate; inhibition of reflexive behaviours; personality & emotional traits; abstract thinking
- Broca's Area = Motor control of speech
Pathology/Injury
[edit | edit source]
It has been found that in traumatic brain injury contusions typically occur on the poles and the inferior aspects of the frontal lobes[3].
Resources[edit | edit source]
Recent Related Research (from Pubmed)[edit | edit source]
Extension:RSS -- Error: Not a valid URL: Feed goes here!!|charset=UTF-8|short|max=10
References[edit | edit source]
References will automatically be added here, see adding references tutorial.
- ↑ Mesulam MM. DT Stuss and RT Knight. The Human Frontal Lobes: Transcending the Default Mode through Continent Encoding. Principles of Frontal Lobe Function. Oxford: 2002. 8-30
- ↑ Luciana, ed. by Charles A. Nelson. Handbook of developmental cognitive neuroscience. Monica (2001). Cambridge, Mass. [u.a.]: MIT Press.
- ↑ Flint AC, Manley GT, Gean AD, et al. Post-operative expansion of hemorrhagic contusions after unilateral decompressive hemicraniectomy in severe traumatic brain injury. J Neurotrauma. Mar 17 2008
