2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society最新文献

Prefrontal cortex transcranial direct current stimulation via a combined high definition and conventional electrode montage: A FEM modeling studying 高清晰度与传统电极蒙太奇相结合的前额叶皮层经颅直流电刺激:有限元模型研究

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2012-11-16 DOI: 10.1109/EMBC.2012.6347509

D. Truong, A. Datta, Jiansong Xu, F. Fregni, M. Bikson

引用次数: 10

Accuracy evaluation on linear measurement through opto-electronic plethysmograph 光电容积描记器线性测量的精度评价

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2012-08-01 DOI: 10.1109/EMBC.2012.6674230

F. Bastianini, E. Schena, S. Silvestri

{"title":"Accuracy evaluation on linear measurement through opto-electronic plethysmograph","authors":"F. Bastianini, E. Schena, S. Silvestri","doi":"10.1109/EMBC.2012.6674230","DOIUrl":"https://doi.org/10.1109/EMBC.2012.6674230","url":null,"abstract":"Opto-electronic plethysmograph (OEP) is a motion analysis device able to measure chest wal l motion and volume variation by surface measurement. The estimation is obtained through displacements measurements of markers placed on the thorax. Therefore OEP accuracy on markers' displacement measurements may play a role in the volume's measurement. The aim of present work is to evaluate OEP accuracy in the estimation of linear displacements, taking into account the contribution due of number of cameras, markers size and displacement magni tude. A linear DC-motor was used to move the marker fixed on its shaft. Trials have been carried out varying 1) marker size (diameters of 6 mm and 12 mm) , 2) cameras number (2, 4, and 6) and 3) the magni tude of displacements ( from 10 μm up to 200 μm). Number of cameras and marker size do not seem to play a crucial role as far as it concerns accuracy on linear displacements. The relative percentage uncertainty decreases from 10% to 6% for marker A, increasing number of cameras from 2 to 6; for marker B, the percentage relative error decreases from 17% to 10%, increasing number of cameras from 2 to 4. Moreover, OEP shows a discrimination threshold of 30 μm.","PeriodicalId":218020,"journal":{"name":"2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134292174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Study on an online collaborative BCI to accelerate response to visual targets 加速视觉目标响应的在线协同脑机接口研究

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2012-08-01 DOI: 10.1109/EMBC.2012.6346284

Peng Yuan, Yijun Wang, Wei Wu, Honglai Xu, Xiaorong Gao, Shangkai Gao

{"title":"Study on an online collaborative BCI to accelerate response to visual targets","authors":"Peng Yuan, Yijun Wang, Wei Wu, Honglai Xu, Xiaorong Gao, Shangkai Gao","doi":"10.1109/EMBC.2012.6346284","DOIUrl":"https://doi.org/10.1109/EMBC.2012.6346284","url":null,"abstract":"Using brain-computer interfaces (BCIs) to improve human performance has become a state-of-the-art research topic. The concept of collaborative BCIs, which aimed to use multi-brain computing to enhance human performance, was proposed recently. To further study the feasibility of collaborative BCIs, here we propose to develop an online collaborative BCI to accelerate human response to visual target stimuli by detecting multi-subjects' visual evoked potentials (VEPs). A spatial filtering algorithm which maximized the signal-to-noise ratio was used to extract VEP components from multichannel EEG. A two-layer support vector machine was subsequently used for target detection. Results of an offline analysis indicated that the system could achieve high accuracies (above 90%) at the stage before the behavioral response time (RT) (332±98ms). In online experiments with three groups of participants (each with three subjects), the system achieved significantly enhanced accuracies (79%, 82%, and 95% for three groups, respectively) at 120 ms after the target onset, which on average was 11% higher than the average individual accuracy, and 6% higher than the best individual accuracy.","PeriodicalId":218020,"journal":{"name":"2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129495530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 44

Assessing traumatic brain injuries using EEG power spectral analysis and instantaneous phase 应用脑电功率谱分析和瞬时相位技术评估外伤性脑损伤

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2012-03-16 DOI: 10.1109/NEBC.2012.6206935

A. Napoli, M. Barbe, K. Darvish, I. Obeid

引用次数: 5

Losless EEG signal compression 无损脑电信号压缩

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society Pub Date : 2009-09-01 DOI: 10.1109/ICSCCW.2009.5379436

A. Gumusalan, Z. Arnavut, H. Kocak

引用次数: 0