Motor cortex changes after amputation are modulated by phantom limb motor control rather than pain

Estelle E. Raffin; Giraux, Pascal; Reilly, Karen; Richard, Nathalie

Motor cortex changes after amputation are modulated by phantom limb motor control rather than pain

Estelle E. Raffin, Giraux, Pascal, Reilly, Karen, Richard, Nathalie

Danish Research Centre for Magnetic Resonance

Abstract

Amputation of a limb induces reorganization within the contralateral primary motor cortex (M1-c) (1-3). In the case of hand amputation, M1-c areas evoking movements in the face and the remaining part of the upper-limb expand toward the hand area. Despite this expansion, the amputated hand still retains a residual M1-c activity when amputees perform phantom limb movements (4-5). Except a correlation between phantom limb pain and M1-c expansion of the face (2-3), the relationship between the ability to voluntary move the phantom hand, the level of phantom limb pain, the degree of M1-c reorganization and the residual M1-c activity of the amputated hand is unknown. This fMRI study aimed to determine this relationship

Original language	English
Publication date	14 Jun 2012
Publication status	Published - 14 Jun 2012
Event	OHBM 2012: The 18th Annual Meeting of the Organization for Human Brain Mapping - China National Convention Center (CNCC), Beijing, China Duration: 10 Jun 2012 → 14 Jun 2012

Conference

Conference	OHBM 2012
Location	China National Convention Center (CNCC)
Country/Territory	China
City	Beijing
Period	10/06/2012 → 14/06/2012

Access to Document

http://ww4.aievolution.com/hbm1201/index.cfm?do=abs.viewAbs&abs=5499

Cite this

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title = "Motor cortex changes after amputation are modulated by phantom limb motor control rather than pain",

abstract = "Amputation of a limb induces reorganization within the contralateral primary motor cortex (M1-c) (1-3). In the case of hand amputation, M1-c areas evoking movements in the face and the remaining part of the upper-limb expand toward the hand area. Despite this expansion, the amputated hand still retains a residual M1-c activity when amputees perform phantom limb movements (4-5). Except a correlation between phantom limb pain and M1-c expansion of the face (2-3), the relationship between the ability to voluntary move the phantom hand, the level of phantom limb pain, the degree of M1-c reorganization and the residual M1-c activity of the amputated hand is unknown. This fMRI study aimed to determine this relationship",

author = "Raffin, \{Estelle E.\} and Giraux, Pascal and Reilly, Karen and Richard, Nathalie",

year = "2012",

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note = "OHBM 2012 ; Conference date: 10-06-2012 Through 14-06-2012",

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TY - ABST

T1 - Motor cortex changes after amputation are modulated by phantom limb motor control rather than pain

AU - Raffin, Estelle E.

AU - Pascal, Giraux,

AU - Karen, Reilly,

AU - Nathalie, Richard,

PY - 2012/6/14

Y1 - 2012/6/14

N2 - Amputation of a limb induces reorganization within the contralateral primary motor cortex (M1-c) (1-3). In the case of hand amputation, M1-c areas evoking movements in the face and the remaining part of the upper-limb expand toward the hand area. Despite this expansion, the amputated hand still retains a residual M1-c activity when amputees perform phantom limb movements (4-5). Except a correlation between phantom limb pain and M1-c expansion of the face (2-3), the relationship between the ability to voluntary move the phantom hand, the level of phantom limb pain, the degree of M1-c reorganization and the residual M1-c activity of the amputated hand is unknown. This fMRI study aimed to determine this relationship

AB - Amputation of a limb induces reorganization within the contralateral primary motor cortex (M1-c) (1-3). In the case of hand amputation, M1-c areas evoking movements in the face and the remaining part of the upper-limb expand toward the hand area. Despite this expansion, the amputated hand still retains a residual M1-c activity when amputees perform phantom limb movements (4-5). Except a correlation between phantom limb pain and M1-c expansion of the face (2-3), the relationship between the ability to voluntary move the phantom hand, the level of phantom limb pain, the degree of M1-c reorganization and the residual M1-c activity of the amputated hand is unknown. This fMRI study aimed to determine this relationship

M3 - Conference abstract for conference

T2 - OHBM 2012

Y2 - 10 June 2012 through 14 June 2012

ER -