Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005.最新文献

Processing of foot pressure images and display of an advanced clinical parameter PR in Diabetic Neuropathy 糖尿病神经病变足压图像的处理及先进临床参数PR的显示

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-08-29 DOI: 10.1109/ICORR.2005.1501131

S.R. Shah, K. M. Patil

引用次数: 7

Spatio-temporal analysis of P300 using ICA and SSLOFO 基于ICA和SSLOFO的P300时空分析

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419706

Bo Hong, Hesheng Liu, P. Schimpf, Shangkai Gao, N. Thakor

引用次数: 0

The effect of passive torque on the kinematics of vestibular-evoked reflexive head movements 被动扭矩对前庭诱发反射性头部运动运动学的影响

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419681

J. S. Reynolds, G. Gdowski

{"title":"The effect of passive torque on the kinematics of vestibular-evoked reflexive head movements","authors":"J. S. Reynolds, G. Gdowski","doi":"10.1109/CNE.2005.1419681","DOIUrl":"https://doi.org/10.1109/CNE.2005.1419681","url":null,"abstract":"When the body is passively moved in space, reflexive compensatory head movements (vesitbulo-collic reflex, VCR) are produced to help stabilize the head with respect to the trunk. In addition, cervical stretch reflexes are activated when the head moves on the trunk (cervico-collic reflex, CCR). Each of these reflexes is thought to contribute to the stability of the head with respect to the trunk by producing head movements during body perturbations. In humans, the VCR has been shown to rapidly adapt to changes in the head's inertia by adding mass to the head during whole body rotations. In this study, a method was developed for modifying the torque acting on the head during rotation in squirrel monkeys in order to study adaptive properties of the VCR in animals. The VCR produced during horizontal rotation was studied in two squirrel monkeys while the torque exerted on the head was varied (0-5.5 oz-in). During low torque conditions the kinematics of the head movements (gain and phase) were anti-compensatory rather than compensatory. As the imposed torque was increased, the gain of the head movements gradually increased until the head was stable in space. These results illustrate the interactions between the VCR and CCR in small non-human primates free to move their head during whole body rotations. Further studies are necessary to determine what neural circuits underlie the observed interactions between the VCR and CCR","PeriodicalId":113815,"journal":{"name":"Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005.","volume":"31 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120859334","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: 0

Orderly recruitment order of peripheral nerve stimulation with electrode array 电极阵列刺激周围神经的有序招募顺序

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419676

Z. Lertmanorat, K. Gustafson, D. Durand

{"title":"Orderly recruitment order of peripheral nerve stimulation with electrode array","authors":"Z. Lertmanorat, K. Gustafson, D. Durand","doi":"10.1109/CNE.2005.1419676","DOIUrl":"https://doi.org/10.1109/CNE.2005.1419676","url":null,"abstract":"Electrical stimulation of peripheral nerve activates large diameter fibers before small ones. Currently available techniques for achieving a natural recruitment order (from small to large fibers) require long-duration stimulation pulses (>500 mus) and large stimulation amplitude, which shorten battery life of the implanted stimulator and could lead to electrode corrosion. The hypothesis that small axons can be recruited before large ones with an electrode array and narrow pulsewidth (50mus) was tested in animal experiments using the cat lateral gastrocnemius (LG) model (N=3). The LG nerve innervates both LG and soleus muscle groups. The LG has fast-twitch fibers and is innervated by large axons (9-16mum), whereas the soleus has slow-twitch fibers and is innervated by smaller axons (8-12 mum). Peak twitch force of LG and soleus were plotted as a function of stimulation amplitude to indicate the recruitment curve. At 40% activation of LG, a conventional tripolar electrode activated only 8.7 plusmn 6.4 of soleus whereas the electrode arrays of 5 and 7 contacts activated 43% plusmn 11.6 and 48% plusmn 10.3 of soleus respectively, suggesting that the arrays could activate some small axons before fully recruiting larger ones. The electrode arrays also decreased significantly the recruitment curve slopes to only 10%-20% of the value obtained for the tripolar electrode. In conclusion, electrode array of 5 and 7 contacts can be used to modulate the recruitment order of peripheral nerve stimulation with a narrow pulse","PeriodicalId":113815,"journal":{"name":"Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127272168","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: 1

Proportions of endpoint force pattern types obtained via intraspinal microstimulation in chronically spinalized cats are dependent on sensorimotor training 慢性脊髓化猫通过椎管内微刺激获得的终点力模式类型的比例依赖于感觉运动训练

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419662

V. Boyce, M. Lemay

引用次数: 2

Topographic and energy analysis of resting MEG and photic stimulation responses in control subjects and patients with schizophrenia 对照和精神分裂症患者静息脑磁图和光刺激反应的地形和能量分析

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419542

A. Kohdabashi, M. Sekine, Y. Higashi, T. Fujimoto, T. Tamura

{"title":"Topographic and energy analysis of resting MEG and photic stimulation responses in control subjects and patients with schizophrenia","authors":"A. Kohdabashi, M. Sekine, Y. Higashi, T. Fujimoto, T. Tamura","doi":"10.1109/CNE.2005.1419542","DOIUrl":"https://doi.org/10.1109/CNE.2005.1419542","url":null,"abstract":"To investigate sequential changes in magnetoencephalograms (MEGs) during photic stimulation (PS), we performed a quantitative MEG analysis of the alpha band (related to stimulus frequency) in 19 schizophrenic patients and 18 gender- and age-matched control subjects. Photic stimulation was at an interval of 0.5 Hz, and the frequency band was from 8 to 10.5 Hz. In each session, the interval lasted ten seconds and was repeated ten times for each frequency. In the topographic study, we assessed the differences between the two groups under two conditions (i.e., during PS and inter-PS). During the stimulus, the absolute 8-10.5 Hz band energy of the patient group was higher at the posterior sites throughout the ten-second periods. We compared the energy intensity of each site based on international 10/20 derivation. The energy intensity in the schizophrenic patients was smaller than in the control subjects at each site. We observed a gender difference in the control subjects, but not in the schizophrenic ones. These results suggest that schizophrenic patients show fewer changes in alpha activity during the stimulus, and this continuity of posterior dominance may reflect hyperarousal, which counteracts any decrease in vigilance throughout the PS","PeriodicalId":113815,"journal":{"name":"Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126759342","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: 1

MeaBench: A toolset for multi-electrode data acquisition and on-line analysis meabbench:用于多电极数据采集和在线分析的工具集

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419673

D. Wagenaar, T. DeMarse, Steve M. Potter

引用次数: 151

Frequency Selection for SSVEP-based Binocular Rivalry 基于ssvep的双目竞争频率选择

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419696

Ruiping Wang, Xiaorong Gao, Shangkai Gao

引用次数: 21

Computational Study of Effect of Potassium Lateral Diffusion and Size of Extracellular Space on Neuronal Synchronization 钾离子横向扩散和胞外空间大小对神经元同步影响的计算研究

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419593

E. Park, D. Durand

{"title":"Computational Study of Effect of Potassium Lateral Diffusion and Size of Extracellular Space on Neuronal Synchronization","authors":"E. Park, D. Durand","doi":"10.1109/CNE.2005.1419593","DOIUrl":"https://doi.org/10.1109/CNE.2005.1419593","url":null,"abstract":"Previous experimental and simulation results have shown that potassium lateral diffusion can generate mutual interaction between neurons resulting in synchronization. The coupling mediator is extracellular potassium concentration. This concentration is modulated by the size of interstitial space. Yet the effect of extracellular space (ECS) size on the level of synchronization between neurons has not yet been studied. We hypothesize that the neuronal synchronization can be modulated by the size of ECS. To test this hypothesis, a two-cell model embedded in a 3-compartment diffusion system was used. Each neuron was surrounded by interstitial space and immersed in the potassium bath. The simulation results show that as the ECS size decreases, synchronous states between non-identical neurons become asynchronous. Since a reduction of ECS size can be achieved by intensive neuronal activity such as epileptiform activity, the results suggest a possible mechanism for the development of synchronization in the process of sustained neuronal activity generated by potassium lateral diffusion","PeriodicalId":113815,"journal":{"name":"Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128524412","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: 0

Goal-directed state equation for tracking reaching movements using neural signals 用神经信号跟踪到达运动的目标导向状态方程

Conference Proceedings. 2nd International IEEE EMBS Conference on Neural Engineering, 2005. Pub Date : 2005-03-16 DOI: 10.1109/CNE.2005.1419630

L. Srinivasan, U. Eden, A. Willsky, E. Brown

引用次数: 13