Movement‐related potentials accompanying unilateral finger movements with special reference to rate of force development

Slobounov, Semyon; Ray, William J.; Simon, Robert

doi:10.1017/s0048577298970342

Cited by 43 publications

(24 citation statements)

References 37 publications

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“…The morphology of MRCP observed in this study (Fig. 4) is similar to those reported in the literature [11,33,35,36].…”

Section: Discussionsupporting

confidence: 89%

“…Previous studies on MRCPs reported that the surface negativity increases approximately 1 s before the imagination onset and the potential rebounds after the imagination onset [11,33,35,36]. The time course of the average MRCP in this study showed similar characteristics.…”

Section: Discussionsupporting

confidence: 79%

“…MRCPs occur in association with both real and imaginary voluntary movements and their magnitude and latency are influenced by movement-related parameters, such as precision, rate of torque development (RTD), and target torque (TT) [11,33,35,36]. Differentiating movement parameters from MRCPs may increase the number of possible commands in EEG-based BCIs.…”

Section: Introductionmentioning

confidence: 99%

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Identification of task parameters from movement-related cortical potentials

Nascimento

Lucas

et al. 2009

Med Biol Eng Comput

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The study investigates the accuracy in discriminating rate of torque development (RTD) and target torque (TT) (task parameters) from electroencephalography (EEG) signals generated during imaginary motor tasks. Signals were acquired from nine healthy subjects during four imaginary isometric plantar-flexions of the right foot involving two RTDs (ballistic and moderate) and two TTs (30 and 60% of the maximal voluntary contraction torque), each repeated 60 times in random order. The single-trial EEG traces were classified with a pattern recognition approach based on wavelet coefficients as features and support vector machine (SVM) as classifier. Average misclassification rates were (mean +/- SD) 16 +/- 9% and 26 +/- 13% for discrimination of the two TTs under ballistic and moderate RTDs, respectively. RTDs could be discriminated with misclassification rates of 16 +/- 11% and 19 +/- 10% under high and low TT, respectively. These results indicate that differences in both TT and RTD can be detected from single-trial EEG traces during imaginary tasks.

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“…The morphology of MRCP observed in this study (Fig. 4) is similar to those reported in the literature [11,33,35,36].…”

Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Identification of task parameters from movement-related cortical potentials

Nascimento

Lucas

et al. 2009

Med Biol Eng Comput

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“…Similar relationships have been observed in a variety of other tasks~see, e.g., Brunia & Vingerhoets, 1980;Slobounov, Ray, & Simon, 1998;Sommer et al, 1994!, so this pattern has wide generality. However, the relationship between the CNV and response speed appears to be much more dependent on the specific task used.…”

Section: Discussionsupporting

confidence: 78%

The lateralized readiness potential and response kinetics in response‐time tasks

Mordkoff

Grosjean

2001

Psychophysiology

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Previous studies have found that the magnitude of the lateralized readiness potential (LRP) at the time of response initiation is constant across spontaneous variations in response time in both cued and uncued, speeded tasks. Other studies have found that the LRP is also unaffected by instructed changes in peak response force and time to peak force in cued, self-paced tasks, but that the LRP is sensitive to instructed changes in force gain rate in uncued, self-paced tasks. The present study examined the LRP in an uncued, speeded task as a function of response time and several measures of response kinetics. The magnitude of the LRP at the time of electromyographic onset was constant across spontaneous variations in all measures. The peak of the contingent negative variation did vary as a function of peak response force and integrated force to peak, but not response time. These findings support the idea that the LRP in speeded tasks is a selective, on-line index of the preparation associated with using a particular hand, and is not an index of the elements of motor programming that determine subsequent response kinetics.

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“…The increased N?50 in our study cannot be explained by exerted force level. In addition, the N?50 increases as the rate of force development increases (Slobounov et al 1998). It also increases with the effort to perform the task (Slobounov et al 2004).…”

Section: Timing Errorsmentioning

confidence: 98%

Neural mechanisms of timing control in a coincident timing task

et al. 2012

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Many ball sports such as tennis or baseball require precise temporal anticipation of both sensory input and motor output (i.e., receptor anticipation and effector anticipation, respectively) and close performance monitoring. We investigated the neural mechanisms underlying timing control and performance monitoring in a coincident timing task involving both types of anticipations. Peak force for two time-to-peak force (TTP) conditions-recorded with a force-sensitive key-was required to coincide with a specific position of a stimulus rotating either slow or fast on a clock face while the contingent negative variation (CNV) and the motor-elicited negativity were recorded. Absolute timing error was generally smaller for short TTP (high velocity) conditions. CNV amplitudes increased with both faster stimulus velocity and longer TTPs possibly reflecting increased motor programming efforts. In addition, the motor-elicited negativity was largest in the slow stimulus/short TTP condition, probably representing some forms of performance monitoring as well as shorter response duration. Our findings indicate that the coincident timing task is a good model for real-life situations of tool use.

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Movement‐related potentials accompanying unilateral finger movements with special reference to rate of force development

Cited by 43 publications

References 37 publications

Identification of task parameters from movement-related cortical potentials

Identification of task parameters from movement-related cortical potentials

The lateralized readiness potential and response kinetics in response‐time tasks

Neural mechanisms of timing control in a coincident timing task

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