2020
DOI: 10.1038/s41598-020-71774-5
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Dorsolateral prefrontal cortex-based control with an implanted brain–computer interface

Abstract: The objective of this study was to test the feasibility of using the dorsolateral prefrontal cortex as a signal source for brain–computer interface control in people with severe motor impairment. We implanted two individuals with locked-in syndrome with a chronic brain–computer interface designed to restore independent communication. The implanted system (Utrecht NeuroProsthesis) included electrode strips placed subdurally over the dorsolateral prefrontal cortex. In both participants, counting backwards activa… Show more

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Cited by 11 publications
(9 citation statements)
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“…Because the muscles of paralyzed patients undergo disuse atrophy [ 172 ], the replacement of motor function is usually achieved through control of robotic devices. Surgically implanted BCIs detect electric signals from the cortical surface using electrocorticography (ECoG), which ensures high spatial resolution [ 173 ]. For reliable control of external robotic devices, however, the electric activity should be recorded from regions of the brain cortex where voluntary mental operations could elicit certain discernible wavefronts, such as sensorimotor rhythms (SMRs) or the so-called P300 evoked response.…”
Section: Virtual Reality For Replacement Of Functionmentioning
confidence: 99%
“…Because the muscles of paralyzed patients undergo disuse atrophy [ 172 ], the replacement of motor function is usually achieved through control of robotic devices. Surgically implanted BCIs detect electric signals from the cortical surface using electrocorticography (ECoG), which ensures high spatial resolution [ 173 ]. For reliable control of external robotic devices, however, the electric activity should be recorded from regions of the brain cortex where voluntary mental operations could elicit certain discernible wavefronts, such as sensorimotor rhythms (SMRs) or the so-called P300 evoked response.…”
Section: Virtual Reality For Replacement Of Functionmentioning
confidence: 99%
“…In a similar context, the animals with an electrode on the parietal cortex in our study also succeeded in BMI learning after a few sessions. In the case of BMI in which signals from the frontal cortex are used, there have been a number of studies on implementing the BMI system using brain signals obtained from the frontal cortex [27][28][29]. Leinders et al showed that BMI training is possible in humans using dorsal lateral prefrontal cortex (DLPFC) ECoG signals [27].…”
Section: Discussionmentioning
confidence: 99%
“…In the case of BMI in which signals from the frontal cortex are used, there have been a number of studies on implementing the BMI system using brain signals obtained from the frontal cortex [27][28][29]. Leinders et al showed that BMI training is possible in humans using dorsal lateral prefrontal cortex (DLPFC) ECoG signals [27]. Widge and Moritz also implemented a closed-loop limbic neurostimulator controlled through the BMI system using spike signals measured in the prefrontal cortex of rodents [29].…”
Section: Discussionmentioning
confidence: 99%
“…It has been shown that the dLPFC can be a target area for BCI control using mental calculation [15] and this provides an alternative UNP control strategy [17]. In this work, the BCI feedback is generated from the M1 electrodes, but signals are also being simultaneously measured from the dLPFC.…”
Section: The Unp Brain Signalmentioning
confidence: 99%
“…In addition to being used to derive the UNP control signal, frequency power features are commonly used for M1-based EEG [6] and ECoG [16] BCI control and have also been used in dLPFC BCI control [15,17]. For these reasons, we also performed a frequency decomposition on the unsmoothed potential signals to investigate errorrelated signals in the frequency domain.…”
Section: Analysis Of the Error Responsesmentioning
confidence: 99%