Background: An important imaging technique that has advanced decision-making for noninvasive preoperative evaluation is functional magnetic resonance imaging (fMRI). Preoperative fMRI imaging based on blood oxygenation level dependent (BOLD) fMRI is routinely used to map a variety of eloquent cortex brain functions such as language, visual, and sensory-motor regions.
Purpose: The purpose of this study was to evaluate the regional volumes of sensory and motor cortex (SMC) activation by two widely used fMRI motor tasks: a simple hand squeeze (HS) versus a more complex finger-to-thumb (FTT) opposition.
Methods: Ten right-handed (five males; five females) subjects were studied using a block design BOLD fMRI technique at 1.5T. A region of interest analysis was performed in the right and left SMC following a HS and FTT task with the dominant right hand.
Results: Results show the total volume of motor and sensory activation for ipsilateral and contralateral areas for the FTT task was statistically larger than the HS task (P= .02).
Conclusion: Due to the greater degree of activation of the SMC with the FTT task, we suggest use of this task over the HS task if a patient can adequately perform the more complex FTT task. The greater SMC activation using FTT task compared to the HS task was primarily due to an increase in activation in the post-central sensory cortex. There was less lateralization, and therefore a greater degree of bilateral SMC activation, in the FTT task compared to the HS task. These results show the importance of optimization and fMRI task selection for presurgical SMC mapping.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1552-6569.2010.00492.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The impact of sports experience on manual dexterity performances in school-age children.
Heliyon
January 2025
Sport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy.
Background: Manual dexterity is the ability to manipulate objects with precision and efficiency, using hands and fingers to achieve a specific objective. This study investigated how the practice of Capoeira, a sport that stimulates coordination skills, affects manual dexterity in children regularly engaged in physical activity or in sedentary children.
Methods: Eighty-four participants were enrolled in this study, including forty-six males and thirty-eight females (age: 8.
Complex Decongestive Therapy Improves Gait Speed in Patients with Lower Limb Lymphedema.
Lymphat Res Biol
December 2024
Department of Physical Medicine and Rehabilitation, Ankara City Hospital, Ankara, Turkey.
Secondary lymphedema is acquired and caused by obstruction or injury to a normally developed lymphatic system. Loss of mobility is a common problem in patients with secondary lower limb lymphedema (LLL) following cancer treatment. In this study, we examined the effect of complex decongestive therapy (CDT) on motor function and mobility in patients with LLL.
View Article and Find Full Text PDFCharacterizing practice-dependent motor learning after a stroke.
Neurol Sci
November 2024
Department of Neuroscience and Rehabilitation, University of Ferrara, Via Ludovico Ariosto 35, Ferrara, Ferrara, 44121, Italy.
Article Synopsis
- After a stroke, patients need to relearn how to use their remaining motor skills, and motor learning is essential for recovery.
- A study involving 26 stroke patients assessed their ability to perform a Finger Tapping Task with both limbs and found that practice could improve performance in the affected limb, especially when starting with the unaffected limb.
- The findings suggest that while anxiety and attention impact motor performance, overall motor learning remains intact and can benefit from inter-limb transfer during rehabilitation.
Neural correlates of motor learning: Network communication versus local oscillations.
Netw Neurosci
October 2024
Division of Neurorehabilitation, Department of Clinical Neurosciences, University Hospital of Geneva, University of Geneva, Switzerland.
Learning new motor skills through training, also termed motor learning, is central for everyday life. Current training strategies recommend intensive task-repetitions aimed at inducing local activation of motor areas, associated with changes in oscillation amplitudes ("event-related power") during training. More recently, another neural mechanism was suggested to influence motor learning: modulation of functional connectivity (FC), that is, how much spatially separated brain regions communicate with each other before and during training.
View Article and Find Full Text PDFNeuropsychological analysis of anxiety and executive control of motor patterns in athletes and non-athletes.
Front Psychol
June 2024
Department of Social Psychology, Social Anthropology, Social Work and Social Services, University of Malaga, Málaga, Spain.
Introduction: Even simple tapping tasks require cognitive processes. Some variants of the Finger Tapping Test (FTT) may reveal cognitive aspects associated with frontal processing, including executive functions such as inhibition, or emotional aspects such as anxiety. A context of particular interest for the application of cognitive-motor-anxiety interactions is sports.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!