arXiv: Neurons and Cognition最新文献_第7页

Self-tracking Energy Transfer for Neural Stimulation in Untethered Mice 非系绳小鼠神经刺激的自跟踪能量转移

arXiv: Neurons and Cognition Pub Date : 2015-03-04 DOI: 10.1103/PhysRevApplied.4.024001

J. S. Ho, Y. Tanabe, S. Iyer, A. Christensen, L. Grosenick, K. Deisseroth, S. Delp, A. Poon

引用次数: 37

Applications of Information Theory to Analysis of Neural Data 信息论在神经数据分析中的应用

arXiv: Neurons and Cognition Pub Date : 2015-01-08 DOI: 10.1007/978-1-4614-7320-6_280-1

S. Schultz, Robin A. A. Ince, S. Panzeri

引用次数: 7

Summary of Information Theoretic Quantities 信息理论量综述

arXiv: Neurons and Cognition Pub Date : 2015-01-08 DOI: 10.1007/978-1-4614-7320-6_306-1

Robin A. A. Ince, S. Panzeri, S. Schultz

引用次数: 4

Estimating Information-Theoretic Quantities 估计信息理论量

arXiv: Neurons and Cognition Pub Date : 2015-01-08 DOI: 10.1007/978-1-4614-7320-6_140-1

Robin A. A. Ince, S. Schultz, S. Panzeri

引用次数: 2

Quantization of mental stress using various physiological markers 利用各种生理标记量化心理应激

arXiv: Neurons and Cognition Pub Date : 2015-01-07 DOI: 10.7287/peerj.preprints.777v3

Apoorvagiri, M. S. Nagananda

引用次数: 2

The resting microstate networks (RMN): cortical distributions, dynamics, and frequency specific information flow 静息微状态网络(RMN):皮层分布、动态和频率特定信息流

arXiv: Neurons and Cognition Pub Date : 2014-11-07 DOI: 10.5167/UZH-100596

R. Pascual-Marqui, D. Lehmann, P. Faber, P. Milz, K. Kochi, M. Yoshimura, K. Nishida, T. Isotani, T. Kinoshita

{"title":"The resting microstate networks (RMN): cortical distributions, dynamics, and frequency specific information flow","authors":"R. Pascual-Marqui, D. Lehmann, P. Faber, P. Milz, K. Kochi, M. Yoshimura, K. Nishida, T. Isotani, T. Kinoshita","doi":"10.5167/UZH-100596","DOIUrl":"https://doi.org/10.5167/UZH-100596","url":null,"abstract":"A brain microstate is characterized by a unique, fixed spatial distribution of electrically active neurons with time varying amplitude. It is hypothesized that a microstate implements a functional/physiological state of the brain during which specific neural computations are performed. Based on this hypothesis, brain electrical activity is modeled as a time sequence of non-overlapping microstates with variable, finite durations (Lehmann and Skrandies 1980, 1984; Lehmann et al 1987). In this study, EEG recordings from 109 participants during eyes closed resting condition are modeled with four microstates. In a first part, a new confirmatory statistics method is introduced for the determination of the cortical distributions of electric neuronal activity that generate each microstate. All microstates have common posterior cingulate generators, while three microstates additionally include activity in the left occipital/parietal, right occipital/parietal, and anterior cingulate cortices. This appears to be a fragmented version of the metabolically (PET/fMRI) computed default mode network (DMN), supporting the notion that these four regions activate sequentially at high time resolution, and that slow metabolic imaging corresponds to a low-pass filtered version. In the second part of this study, the microstate amplitude time series are used as the basis for estimating the strength, directionality, and spectral characteristics (i.e., which oscillations are preferentially transmitted) of the connections that are mediated by the microstate transitions. The results show that the posterior cingulate is an important hub, sending alpha and beta oscillatory information to all other microstate generator regions. Interestingly, beyond alpha, beta oscillations are essential in the maintenance of the brain during resting state.","PeriodicalId":298664,"journal":{"name":"arXiv: Neurons and Cognition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124429742","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: 61

The brain as a trigger system 大脑是一个触发系统

arXiv: Neurons and Cognition Pub Date : 2014-10-19 DOI: 10.22323/1.213.0252

M. D. Viva, G. Punzi

{"title":"The brain as a trigger system","authors":"M. D. Viva, G. Punzi","doi":"10.22323/1.213.0252","DOIUrl":"https://doi.org/10.22323/1.213.0252","url":null,"abstract":"There are significant analogies between the issues related to real-time event selection in HEP, and the issues faced by the human visual system. In fact, the visual system needs to extract rapidly the most important elements of the external world from a large flux of information, for survival purposes. A rapid and reliable detection of visual stimuli is essential for triggering autonomic responses to emotive stimuli, for initiating adaptive behaviors and for orienting towards potentially interesting/ dangerous stimuli. The speed of visual processing can be as fast as 20 ms, about only 20 times the duration of the elementary information exchanges by the action potential. The limitations to the brain capacity to process visual information, imposed by intrinsic energetic costs of neuronal activity, and ecological limits to the size of the skull, require a strong data reduction at an early stage, by creating a compact summary of relevant information, the so called \"primal sketch\", to be handled by further levels of processing. This is quite similar to the problem of experimental HEP of providing fast data reduction at a reasonable monetary cost, and with a practical device size. As a result of a joint effort of HEP physicists and practicing vision scientists, we recently proposed that not only the problems are similar, but the solutions adopted in the two cases also have strong similarities, and their parallel study can actually shed light on each other. Modeling the visual system as a trigger processor leads to a deeper understanding, and even very specific predictions of its functionality. Conversely, the insights gained from this new approach to vision, can lead to new ideas for enhancing the capabilities of artificial vision systems, and HEP trigger systems as well.","PeriodicalId":298664,"journal":{"name":"arXiv: Neurons and Cognition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123396029","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

Probing the Mind Behind the (Literal and Figurative) Lightbulb 探索灯泡背后的思想(字面和比喻)

arXiv: Neurons and Cognition Pub Date : 2014-09-13 DOI: 10.1037/A0038075

L. Gabora

{"title":"Probing the Mind Behind the (Literal and Figurative) Lightbulb","authors":"L. Gabora","doi":"10.1037/A0038075","DOIUrl":"https://doi.org/10.1037/A0038075","url":null,"abstract":"After doing away with the evolutionary scaffold for BVSR, what remains is a notion of \"blindness\" that does not distinguish BVSR from other theories of creativity, and an assumption that creativity can be understood by treating ideas as discrete, countable entities, as opposed to different external manifestations of a singular gradually solidifying internal conception. Uprooted from Darwinian theory, BVSR lacks a scientific framework that can be called upon to generate hypotheses and test them. In lieu of such a framework, hypotheses appear to be generated on the basis of previous data--they are not theory-driven. The paper does not explain how the hypothesis that creativity is enhanced by engagement in a \"network of enterprises\" is derived from BVSR; this hypothesis is more compatible with competing conceptions of creativity. The notion that creativity involves backtracking conflates evidence for backtracking with respect to the external output with evidence for backtracking of the conception of the invention. The first does not imply the second; a creator can set aside a creative output but cannot go back to the conception of the task he/she had prior to generating that output. The notion that creativity entails superfluity (i.e., many ideas have \"zero usefulness\") is misguided; usefulness is context-dependent, moreover, the usefulness of an idea may reside in its being a critical stepping-stone to a subsequent idea.","PeriodicalId":298664,"journal":{"name":"arXiv: Neurons and Cognition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134167126","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: 2

Locally-Optimized Inter-Subject Alignment of Functional Cortical Regions 功能性皮质区域局部优化的主体间对齐

arXiv: Neurons and Cognition Pub Date : 2014-08-03 DOI: 10.1167/14.10.714

M. C. Iordan, Armand Joulin, D. Beck, Li Fei-Fei

{"title":"Locally-Optimized Inter-Subject Alignment of Functional Cortical Regions","authors":"M. C. Iordan, Armand Joulin, D. Beck, Li Fei-Fei","doi":"10.1167/14.10.714","DOIUrl":"https://doi.org/10.1167/14.10.714","url":null,"abstract":"Inter-subject registration of cortical areas is necessary in functional imaging (fMRI) studies for making inferences about equivalent brain function across a population. However, many high-level visual brain areas are defined as peaks of functional contrasts whose cortical position is highly variable. As such, most alignment methods fail to accurately map functional regions of interest (ROIs) across participants. To address this problem, we propose a locally optimized registration method that directly predicts the location of a seed ROI on a separate target cortical sheet by maximizing the functional correlation between their time courses, while simultaneously allowing for non-smooth local deformations in region topology. Our method outperforms the two most commonly used alternatives (anatomical landmark-based AFNI alignment and cortical convexity-based FreeSurfer alignment) in overlap between predicted region and functionally-defined LOC. Furthermore, the maps obtained using our method are more consistent across subjects than both baseline measures. Critically, our method represents an important step forward towards predicting brain regions without explicit localizer scans and deciphering the poorly understood relationship between the location of functional regions, their anatomical extent, and the consistency of computations those regions perform across people.","PeriodicalId":298664,"journal":{"name":"arXiv: Neurons and Cognition","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124141386","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: 4

Stochastic Modeling of Excitable Dynamics: Improved Langevin Model for Mesoscopic Channel Noise 可激发动力学的随机建模:介观通道噪声的改进Langevin模型

arXiv: Neurons and Cognition Pub Date : 2014-05-20 DOI: 10.1007/978-3-319-08672-9_38

I. Goychuk

引用次数: 2