A5073856669- Neuroscience and Neural Engineering
- Muscle activation and electromyography studies
- EEG and Brain-Computer Interfaces
- Genetic Neurodegenerative Diseases
- Motor Control and Adaptation
- Conducting polymers and applications
- Action Observation and Synchronization
- Photoreceptor and optogenetics research
- Neural dynamics and brain function
- IoT-based Smart Home Systems
- Autonomous Vehicle Technology and Safety
- Advanced Adaptive Filtering Techniques
- Speech Recognition and Synthesis
- Speech and Audio Processing
- Multimodal Machine Learning Applications
- Flavonoids in Medical Research
- Speech and dialogue systems
- Indoor and Outdoor Localization Technologies
- Human Pose and Action Recognition
- Medicinal Plants and Bioactive Compounds
- IoT and GPS-based Vehicle Safety Systems
- 3D Printing in Biomedical Research
- Energy and Environment Impacts
- Advanced Vision and Imaging
- Solar Radiation and Photovoltaics
German Primate Center
2020-2022
University of Göttingen
2020-2021
Kalasalingam Academy of Research and Education
2019
National University of Singapore
2014-2016
Singapore Institute of Technology
2015
University of Houston
2005
Inter-areal coherence between field potentials is a widespread phenomenon in cortex. Coherence has been hypothesized to reflect phase-synchronization oscillators and flexibly gate communication according behavioral cognitive demands. We reveal an alternative mechanism where not the cause but consequence of naturally emerges because spiking activity sending area causes post-synaptic both same other areas. Consequently, depends lawful manner on power phase-locking sender connectivity. Changes...
A novel flexible neural ribbon electrode with a self-adaptive feature is successfully implemented for various small nerves recording. As interface, the selective recording capability characterized by having reliable signal acquisitions from sciatic nerve and its branches such as peroneal nerve, tibial sural nerve. service to our authors readers, this journal provides supporting information supplied authors. Such materials are peer reviewed may be re-organized online delivery, but not...
Selective stimulation is delivered to the sciatic nerve using different paris of contacts on a split-ring electrode, while simulatneous recordings are acquired by neural ribbon electrodes three branches. Two hook also implanted in muscle monitor activated responses. It shows that high precision implantation electrodes, increases efficacy and reduces incidence side effects. Flexible biomedical devices currently become popular since they promising direct contact with delicate soft tissues...
Markerless tracking is a crucial experimental requirement for behavioral studies conducted in many species different environments.A recently developed toolbox called DeepLabCut (DLC) (Mathis et al. (2018)) leverages Artificial Neural Network (ANN) based computer vision to make precise markerless possible scientific experiments.DLC uses deep convolutional neural network, ResNet (He, Zhang, Ren, & Sun (2016)) pre-trained on ImageNet database (Deng ( 2009)) and adapts it applicable tasks.To...
This paper demonstrates flexible epineural strip electrodes (FLESE) for recording from small nerves. Small strip-shaped FLESE enables us to easily and closely stick on various sized nerves less damage in a nerve optimal quality. In addition, order enhance the neural interface, gold electrode contacts were coated with carbon nanotubes, which reduced impedance of electrodes. We used FLESEs record electrically elicited signals (compound action potentials) sciatic rats. Bipolar differential...
Abstract What does neuronal coherence tell us about communication? Does between field potentials (e.g. LFP, EEG, MEG) reflect spiking entrainment or coupling oscillators? Is it a mechanism for communication brain areas, byproduct of interareal connectivity and spectral power? We hypothesized that is explained by the fact outputs from one cortical area give rise to synaptic inputs in same area, correlated another area. Our mathematical analysis demonstrates sending receiving precisely...
This paper describes the proposed methodology to build a safety system which is integrated with smart helmet and intelligent bike reduce probability of two-wheeler accidents, theft drunk drive cases. device aims for security two wheeler riders as well wheelers. In this era, more than 1.5 lakhs people were injured because road accidents. It noted that 17 deaths happen every one hour. The major reason drunken drive. reported majority accidents are happened only has also been observed other...
Restoration of motor function in cases peripheral nerve injury is a challenging problem. Although nerves do regenerate, the time required for to regenerate often causes atrophy occur muscles before they can be re-innervated. This paper presents solution through proximal recording signals and distal muscle stimulation. A fully implantable hardware architecture described that operated by means inductive power MICS band data transmission schemes. Preliminary experiments validation studies are...
A long-term peripheral neural interface is an area of intense research. The use electrode interfaces limited by the biological response to material.We created construct harbor rat sciatic nerve with interposition autogenous adipose tissue between and electrode. was implanted for 10 weeks.Immunohistochemistry showed a unique laminar pattern axonal growth layered fibro-collagenous tissue, forming physical tungsten micro-electrode. Action potentials transmitted across intrerface mean conduction...
There has been a lot of recent interest in using electrical impulses to interface with the nervous system regulate organ functions body. In article 1500386, Shih-Cheng Yen, Chengkuo Lee, and co-workers demonstrate ability selectively stimulate nerve trunk and, for first time, record simultaneously effect on different branches range very small diameters from 200 500 μm. This allows be mapped high precision, potentially greatly increasing efficacy stimulation reducing incidence unintended side effects.
Thin-film longitudinal intrafascicular electrodes (tf-LIFE) are widely used for peripheral nerve recordings. tf-LIFEs also promising neural signal acquisition in future prostheses. However, common mode interference, and electrical artifacts originating from long wire leads movement known problems encountered when using such electrodes, which lead to degradation the recording quality. Here, we report an active tf-LIFE electrode implemented by integrating a amplifier chip die close proximity...
Various peripheral nerve interfaces have been developed in the last decades and transferred into neuroscientific researches or clinical applications. In this study, we present a novel flexible neural ribbon electrode that can achieve self-adaption to nerves various diameters three dimensional (3D) contacts. Impedance spectroscopy of was carried out determine its electrochemical characteristics during recording. The recording capability on sciatic with different diameter demonstrated by...
Neuroprosthetic devices that interface with the nervous system to restore functional motor activity offer a viable alternative nerve regeneration, especially in proximal injuries like brachial plexus where muscle atrophy may set before re-innervation occurs. Prior studies have used control signals from or cortical activity. However, are preferred many cases since they permit more natural and precise when compared activity, can be accessed much lower risk than Identification of appropriate...
Energy has been a universal measure of all kind work by human beings and nature. the major input to drive life cycle improve it. consumption closely related progress mankind. The main objective study is elucidate impact conventional energy on environmental degradation preference towards purchase non- products - with special reference solar .The based primary data collected from Urban Households in areas Coimbatore, administering questionnaire sample 300 selected applying Simple Random...
Interfacing with the nervous system to restore functional motor activity is a promising therapy augment classical surgical approaches treating peripheral nerve injuries. Despite advances in electrode microelectronics engineering, challenge of extracting information from injured nerves help function remains unsolved. Here we used waveform feature extraction and clustering techniques identify discrete set events intraneural recordings median non-human primate (NHP) during grasping tasks. This...
Selective fascicle stimulation is a requirement for the neuroprosthetic treatment of peripheral nerve injuries in order to achieve proper functional recovery. Here we show that multi-contact polyimide-based flexible split-ring electrodes can provide selective motor rat sciatic nerve. Considering results, these kinds appear suitable bidirectional interfaces chronic applications.
This paper presents some possible acoustic feature differences between natural and synthesized speech. Sentences spoken in a adult male voice on VOTRAX ML-1 Speech Synthesizer were recorded sound proof booth. The sentences classified into voiced, unvoiced silence regions contained these sentences. Parameters like the zerocrossing, linear prediction coefficient energy used making classification. results obtained indicate that speech tends to contain more unvoicing than classification accuracy...