Laksari, K; Wu, L C; Kurt, M; Kuo, C; Camarillo, D C
Resonance of human brain under head acceleration Journal Article
In: Journal of the Royal Society Interface, vol. 12, no. 108, pp. 20150331, 2015.
Abstract | BibTeX | Tags: *Acceleration/ae [Adverse Effects], *BRAIN, *Brain Injuries, *Craniocerebral Trauma, *MAGNETIC resonance imaging, *Skull, adult, Brain Injuries/dg [Diagnostic Imaging], Brain Injuries/pp [Physiopathology], Brain/dg [Diagnostic Imaging], Brain/pp [Physiopathology], Craniocerebral Trauma/dg [Diagnostic Imaging], Craniocerebral Trauma/pp [Physiopathology], Humans, Male, Radiography, Skull/dg [Diagnostic Imaging], Skull/pp [Physiopathology]
@article{Laksari2015,
title = {Resonance of human brain under head acceleration},
author = {Laksari, K and Wu, L C and Kurt, M and Kuo, C and Camarillo, D C},
year = {2015},
date = {2015-01-01},
journal = {Journal of the Royal Society Interface},
volume = {12},
number = {108},
pages = {20150331},
abstract = {Although safety standards have reduced fatal head trauma due to single severe head impacts, mild trauma from repeated head exposures may carry risks of long-term chronic changes in the brain's function and structure. To study the physical sensitivities of the brain to mild head impacts, we developed the first dynamic model of the skull-brain based on in vivo MRI data. We showed that the motion of the brain can be described by a rigid-body with constrained kinematics. We further demonstrated that skull-brain dynamics can be approximated by an under-damped system with a low-frequency resonance at around 15 Hz. Furthermore, from our previous field measurements, we found that head motions in a variety of activities, including contact sports, show a primary frequency of less than 20 Hz. This implies that typical head exposures may drive the brain dangerously close to its mechanical resonance and lead to amplified brain-skull relative motions. Our results suggest a possible cause for mild brain trauma, which could occur due to repetitive low-acceleration head oscillations in a variety of recreational and occupational activities. Copyright © 2015 The Author(s) Published by the Royal Society. All rights reserved.},
keywords = {*Acceleration/ae [Adverse Effects], *BRAIN, *Brain Injuries, *Craniocerebral Trauma, *MAGNETIC resonance imaging, *Skull, adult, Brain Injuries/dg [Diagnostic Imaging], Brain Injuries/pp [Physiopathology], Brain/dg [Diagnostic Imaging], Brain/pp [Physiopathology], Craniocerebral Trauma/dg [Diagnostic Imaging], Craniocerebral Trauma/pp [Physiopathology], Humans, Male, Radiography, Skull/dg [Diagnostic Imaging], Skull/pp [Physiopathology]},
pubstate = {published},
tppubtype = {article}
}
Laksari, K; Wu, L C; Kurt, M; Kuo, C; Camarillo, D C
Resonance of human brain under head acceleration Journal Article
In: Journal of the Royal Society Interface, vol. 12, no. 108, pp. 20150331, 2015.
@article{Laksari2015,
title = {Resonance of human brain under head acceleration},
author = {Laksari, K and Wu, L C and Kurt, M and Kuo, C and Camarillo, D C},
year = {2015},
date = {2015-01-01},
journal = {Journal of the Royal Society Interface},
volume = {12},
number = {108},
pages = {20150331},
abstract = {Although safety standards have reduced fatal head trauma due to single severe head impacts, mild trauma from repeated head exposures may carry risks of long-term chronic changes in the brain's function and structure. To study the physical sensitivities of the brain to mild head impacts, we developed the first dynamic model of the skull-brain based on in vivo MRI data. We showed that the motion of the brain can be described by a rigid-body with constrained kinematics. We further demonstrated that skull-brain dynamics can be approximated by an under-damped system with a low-frequency resonance at around 15 Hz. Furthermore, from our previous field measurements, we found that head motions in a variety of activities, including contact sports, show a primary frequency of less than 20 Hz. This implies that typical head exposures may drive the brain dangerously close to its mechanical resonance and lead to amplified brain-skull relative motions. Our results suggest a possible cause for mild brain trauma, which could occur due to repetitive low-acceleration head oscillations in a variety of recreational and occupational activities. Copyright © 2015 The Author(s) Published by the Royal Society. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Laksari, K; Wu, L C; Kurt, M; Kuo, C; Camarillo, D C
Resonance of human brain under head acceleration Journal Article
In: Journal of the Royal Society Interface, vol. 12, no. 108, pp. 20150331, 2015.
Abstract | BibTeX | Tags: *Acceleration/ae [Adverse Effects], *BRAIN, *Brain Injuries, *Craniocerebral Trauma, *MAGNETIC resonance imaging, *Skull, adult, Brain Injuries/dg [Diagnostic Imaging], Brain Injuries/pp [Physiopathology], Brain/dg [Diagnostic Imaging], Brain/pp [Physiopathology], Craniocerebral Trauma/dg [Diagnostic Imaging], Craniocerebral Trauma/pp [Physiopathology], Humans, Male, Radiography, Skull/dg [Diagnostic Imaging], Skull/pp [Physiopathology]
@article{Laksari2015,
title = {Resonance of human brain under head acceleration},
author = {Laksari, K and Wu, L C and Kurt, M and Kuo, C and Camarillo, D C},
year = {2015},
date = {2015-01-01},
journal = {Journal of the Royal Society Interface},
volume = {12},
number = {108},
pages = {20150331},
abstract = {Although safety standards have reduced fatal head trauma due to single severe head impacts, mild trauma from repeated head exposures may carry risks of long-term chronic changes in the brain's function and structure. To study the physical sensitivities of the brain to mild head impacts, we developed the first dynamic model of the skull-brain based on in vivo MRI data. We showed that the motion of the brain can be described by a rigid-body with constrained kinematics. We further demonstrated that skull-brain dynamics can be approximated by an under-damped system with a low-frequency resonance at around 15 Hz. Furthermore, from our previous field measurements, we found that head motions in a variety of activities, including contact sports, show a primary frequency of less than 20 Hz. This implies that typical head exposures may drive the brain dangerously close to its mechanical resonance and lead to amplified brain-skull relative motions. Our results suggest a possible cause for mild brain trauma, which could occur due to repetitive low-acceleration head oscillations in a variety of recreational and occupational activities. Copyright © 2015 The Author(s) Published by the Royal Society. All rights reserved.},
keywords = {*Acceleration/ae [Adverse Effects], *BRAIN, *Brain Injuries, *Craniocerebral Trauma, *MAGNETIC resonance imaging, *Skull, adult, Brain Injuries/dg [Diagnostic Imaging], Brain Injuries/pp [Physiopathology], Brain/dg [Diagnostic Imaging], Brain/pp [Physiopathology], Craniocerebral Trauma/dg [Diagnostic Imaging], Craniocerebral Trauma/pp [Physiopathology], Humans, Male, Radiography, Skull/dg [Diagnostic Imaging], Skull/pp [Physiopathology]},
pubstate = {published},
tppubtype = {article}
}