Pengcheng Xi

ORCID: 0000-0003-0956-9618
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About
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Research Areas
  • EEG and Brain-Computer Interfaces
  • Neuroscience and Neural Engineering
  • Neural dynamics and brain function
  • Advanced Sensor and Energy Harvesting Materials
  • Tactile and Sensory Interactions
  • Muscle activation and electromyography studies
  • Functional Brain Connectivity Studies
  • Neurological Disease Mechanisms and Treatments
  • Transcranial Magnetic Stimulation Studies
  • Alzheimer's disease research and treatments
  • Dementia and Cognitive Impairment Research
  • Conducting polymers and applications
  • Music and Audio Processing
  • Music Technology and Sound Studies
  • Memory and Neural Mechanisms

National Research Council Canada
2024-2025

Beijing Institute of Technology
2019-2024

University of Waterloo
2024

Abstract Advancements in live audio processing, specifically sound classification and captioning technologies, have widespread applications ranging from surveillance to accessibility services. However, traditional methods encounter scalability energy efficiency challenges. To overcome these, Triboelectric Nanogenerators (TENG) are explored for harvesting, particularly live‐streaming monitoring systems. This study introduces a sustainable methodology integrating TENG‐based sensors into...

10.1002/adsr.202400156 article EN cc-by Advanced Sensor Research 2025-01-08

The cerebral cortex plays an important role in human and other animal adaptation to unpredictable terrain changes, but little was known about the functional network among cortical areas during this process. To address question, we trained 6 rats with blocked vision walk bipedally on a treadmill random uneven area. Whole-brain electroencephalography signals were recorded by 32-channel implanted electrodes. Afterward, scan from all using time windows quantify connectivity within each window...

10.34133/cbsystems.0017 article EN cc-by Cyborg and Bionic Systems 2023-01-01

Peripheral nerve stimulation is an effective neuromodulation method in patients with lower extremity movement disorders caused by stroke, spinal cord injury, or other diseases. However, most current studies on rehabilitation using sciatic focus solely ankle motor regulation through of common peroneal and tibial nerves. Using the electrical method, we here achieved muscle control via different branches to facilitate limb movements during stepping standing. A map relationships between muscles...

10.34133/cbsystems.0131 article EN cc-by Cyborg and Bionic Systems 2024-01-01

Background.Transcutaneous electrical nerve stimulation (TENS) is generally applied for tactile feedback in the field of prosthetics. The distinct mechanisms evoked perception between stimulus patterns conventional TENS (cTENS) and neuromorphic (nTENS) are relatively unknown. This first study to investigate neurobiological effect nTENS cortical functional mechanism perception.Methods.Twenty-one healthy participants were recruited this study. Electroencephalogram (EEG) was recorded while...

10.1088/1741-2552/ac5bf6 article EN Journal of Neural Engineering 2022-03-09

Neural interfaces typically focus on one or two sites in the motoneuron system simultaneously due to limitation of recording technique, which restricts scope observation and discovery this system. Herein, we built a with various electrodes capable large spectrum electrophysiological signals from cortex, spinal cord, peripheral nerves, muscles freely moving animals. The integrates adjustable microarrays, floating microwires commercial connector cuff electrode wireless transmitter. To...

10.3390/bios11120503 article EN cc-by Biosensors 2021-12-08

Neural interface is man-made information pathway through which biological nerve system could communicate directly with electromechanical devices including computer, robot and even cyborg. This paper introduces a novel neural interfacing electrode array capable of bidirectional transmission multi-signals recording. The flexible 32 channels enables close-looped control feedback researches the capability both electrical stimulation simultaneous recording electroencephalogram (EEG),...

10.1109/iciibms46890.2019.8991516 article EN 2019-11-01

What is the central question of this study? White matter lesions (WMLs) are a brain disease characterized by altered structural and functional connectivity, but findings have shown an inconsistent pattern: there distinct cortical thickness changes in patients with WMLs subtypes? main finding its importance? Patients non-dementia vascular cognitive impairment dementia showed pathophysiology thickness. These neural correlates should be considered future treatment.The effect on white...

10.1113/ep089419 article EN Experimental Physiology 2021-04-18

Humans and other animals can quickly respond to unexpected terrains during walking, but little is known about the cortical dynamics in this process. To study impact of on brain activity, we allowed rats with blocked vision walk a treadmill bipedal posture then an uneven area at random position belt. Whole EEG signals hind limb kinematics bipedal-walking were recorded. After encountering terrain, θ band power bilateral M1, γ left S1, RSP significantly decreased compared normal walking....

10.3390/biology11010036 article EN cc-by Biology 2021-12-27
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