P2.17 Non invasive functional mapping in children with symptomatic perirolandic seizures: the contribution of functional MRI during passive motor tasks

We studied functional MRI in 15 male and 13 female normal volunteers on a clinical MRI system using gradient echo sequence. During the experiments, brain activation was induced by grasping the unilateral hand once or twice a second for motor tasks. A localized increase of MRI signal in the contralateral motor cortex was observed in 17 out of 21 cases (81%) under right hand motor task and 11 out of 21 cases (52%) under left hand motor task. The application of this method may be useful to evaluate brain response to acupuncture.

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Quantitative comparison of functional MRI and direct electrocortical stimulation for functional mapping

International Journal of Medical Robotics and Computer Assisted Surgery ◽

10.1002/rcs.149 ◽

2007 ◽

Vol 3 (3) ◽

pp. 262-270 ◽

Cited By ~ 10

Author(s):

S. Larsen ◽

R. Kikinis ◽

I.-F. Talos ◽

D. Weinstein ◽

W. Wells ◽

...

Keyword(s):

Functional Mri ◽

Quantitative Comparison ◽

Functional Mapping

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P14.9 Navigated brain stimulation – a tool for non-invasive functional mapping in a young child with epilepsy

European Journal of Paediatric Neurology ◽

10.1016/s1090-3798(11)70310-5 ◽

2011 ◽

Vol 15 ◽

pp. S90

Author(s):

I. Olsson ◽

A. Hedström ◽

M. Thordstein

Keyword(s):

Young Child ◽

Brain Stimulation ◽

Functional Mapping ◽

Navigated Brain Stimulation ◽

Non Invasive

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Functional mapping of the cortex—surface based visualizations of functional MRI

International Congress Series ◽

10.1016/j.ics.2004.03.223 ◽

2004 ◽

Vol 1268 ◽

pp. 1246

Author(s):

R. Krishnan ◽

E. Hattingen ◽

A. Raabe ◽

M. Zimmermann ◽

V. Seifert

Keyword(s):

Functional Mri ◽

Functional Mapping

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Acoustic stimulation increases implicit adaptation in sensorimotor adaptation

10.1101/2020.10.25.354340 ◽

2020 ◽

Author(s):

Li-Ann Leow ◽

James R. Tresilian ◽

Aya Uchida ◽

Dirk Koester ◽

Tamara Spingler ◽

...

Keyword(s):

Motor Skills ◽

Brain Stimulation ◽

Acoustic Stimulation ◽

Individual Variability ◽

Healthy Adults ◽

Sensorimotor Adaptation ◽

Prediction Errors ◽

Motor Tasks ◽

Non Invasive ◽

Sensory Prediction

AbstractSensorimotor adaptation is an important part of our ability to perform novel motor tasks (i.e., learning of motor skills). Efforts to improve adaptation in healthy and clinical patients using non-invasive brain stimulation methods have been hindered by interindividual and intra-individual variability in brain susceptibility to stimulation. Here, we explore unpredictable loud acoustic stimulation as an alternative method of modulating brain excitability to improve sensorimotor adaptation. In two experiments, participants moved a cursor towards targets, and adapted to a 30° rotation of cursor feedback, either with or without unpredictable acoustic stimulation. Acoustic stimulation improved initial adaptation to sensory prediction errors in Study 1, and improved overnight retention of adaptation in Study 2. Unpredictable loud acoustic stimulation might thus be a potent method of modulating sensorimotor adaptation in healthy adults.

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