11 research outputs found

    Rola jednostek wojskowych we wsp贸艂czesnych procesach przemian struktury przestrzennej miasta na przyk艂adzie 艁asku

    Get PDF
    The reorganization of the army in last few years has been caused major changes in the spatial distribution of military units. Some of them have been completely li膮uidated, while others have been expanded and modernized. This has contributed to changes in the functional-spatial structure of urban areas associated with the army. This is particularly evident in smaller cities where the army and the community linked to it have a significant impact on the shaping of urban space. Article aims to describe the impact of a military unit on the transformation of functional-spatialstructure of a smali town, which 艁ask is. Development of this town, for over fifty years connected with the army, is largely associated with localized in the neighborhood the military facilities. In addition to military infrastructure on the formation of the spatial structure of 艁ask affects the belonging to the Ministry of Defense residential buildings for individual workers and their families. The process also includes changes in land use of former military unit.Dokonuj膮ca si臋 w ostatnich latach reorganizacja armii spowodowa艂a du偶e zmiany w przestrzennym rozmieszczeniu jednostek wojskowych. Cz臋艣膰 z nich zosta艂a ca艂kowicie zlikwidowana, inne zosta艂y rozbudowane i unowocze艣nione. Przyczyni艂o si臋 to tak偶e do przemian w strukturze funkcjonalno-przestrzennej obszar贸w miejskich zwi膮zanych z wojskiem. Szczeg贸lnie widoczne jest to w przypadku mniejszych o艣rodk贸w miejskich, w kt贸rych wojsko i spo艂eczno艣膰 z nim zwi膮zana maj膮 istotny wp艂yw na kszta艂towanie przestrzeni miejskiej. Artyku艂 ma na celu przedstawienie wp艂ywu jednostki wojskowej na przeobra偶enia struktury funkcjonalno- -przestrzennej ma艂ego miasta, jakim jest 艁ask. Rozw贸j tego o艣rodka, od ponad pi臋膰dziesi臋ciu lat zwi膮zanego z wojskiem, w du偶ej mierze uwarunkowany by艂 ulokowaniem w jego pobli偶u obiekt贸w wojskowych. Opr贸cz infrastruktury stricte wojskowej na kszta艂towanie struktury przestrzennej miasta wp艂ywaj膮 nale偶膮ce do resortu obrony obiekty mieszkalne, przeznaczone dla pracownik贸w jednostki i ich rodzin. Proces przeobra偶e艅 nie omin膮艂 r贸wnie偶 zagospodarowania teren贸w powojskowych, powsta艂ych po likwidacji jednej z jednostek

    Recurrence Quantification Analysis of Dynamic Brain Networks

    Get PDF
    Evidence suggests that brain network dynamics is a key determinant of brain function and dysfunction. Here we propose a new framework to assess the dynamics of brain networks based on recurrence analysis. Our framework uses recurrence plots and recurrence quantification analysis to characterize dynamic networks. For resting-state magnetoencephalographic dynamic functional networks (dFNs), we have found that functional networks recur more quickly in people with epilepsy than healthy controls. This suggests that recurrence of dFNs may be used as a biomarker of epilepsy. For stereo electroencephalography data, we have found that dFNs involved in epileptic seizures emerge before seizure onset, and recurrence analysis allows us to detect seizures. We further observe distinct dFNs before and after seizures, which may inform neurostimulation strategies to prevent seizures. Our framework can also be used for understanding dFNs in healthy brain function and in other neurological disorders besides epilepsy.Comment: 77 pages, 11 figures; note: the acknowledgments section is the most complete in this arxiv version (compared to the published version in EJN

    Rola jednostek wojskowych we wsp贸艂czesnych procesach przemian struktury przestrzennej miasta na przyk艂adzie 艁asku

    Get PDF
    The reorganization of the army in last few years has been caused major changes in the spatial distribution of military units. Some of them have been completely li膮uidated, while others have been expanded and modernized. This has contributed to changes in the functional-spatial structure of urban areas associated with the army. This is particularly evident in smaller cities where the army and the community linked to it have a significant impact on the shaping of urban space. Article aims to describe the impact of a military unit on the transformation of functional-spatialstructure of a smali town, which 艁ask is. Development of this town, for over fifty years connected with the army, is largely associated with localized in the neighborhood the military facilities. In addition to military infrastructure on the formation of the spatial structure of 艁ask affects the belonging to the Ministry of Defense residential buildings for individual workers and their families. The process also includes changes in land use of former military unit.Dokonuj膮ca si臋 w ostatnich latach reorganizacja armii spowodowa艂a du偶e zmiany w przestrzennym rozmieszczeniu jednostek wojskowych. Cz臋艣膰 z nich zosta艂a ca艂kowicie zlikwidowana, inne zosta艂y rozbudowane i unowocze艣nione. Przyczyni艂o si臋 to tak偶e do przemian w strukturze funkcjonalno-przestrzennej obszar贸w miejskich zwi膮zanych z wojskiem. Szczeg贸lnie widoczne jest to w przypadku mniejszych o艣rodk贸w miejskich, w kt贸rych wojsko i spo艂eczno艣膰 z nim zwi膮zana maj膮 istotny wp艂yw na kszta艂towanie przestrzeni miejskiej. Artyku艂 ma na celu przedstawienie wp艂ywu jednostki wojskowej na przeobra偶enia struktury funkcjonalno- -przestrzennej ma艂ego miasta, jakim jest 艁ask. Rozw贸j tego o艣rodka, od ponad pi臋膰dziesi臋ciu lat zwi膮zanego z wojskiem, w du偶ej mierze uwarunkowany by艂 ulokowaniem w jego pobli偶u obiekt贸w wojskowych. Opr贸cz infrastruktury stricte wojskowej na kszta艂towanie struktury przestrzennej miasta wp艂ywaj膮 nale偶膮ce do resortu obrony obiekty mieszkalne, przeznaczone dla pracownik贸w jednostki i ich rodzin. Proces przeobra偶e艅 nie omin膮艂 r贸wnie偶 zagospodarowania teren贸w powojskowych, powsta艂ych po likwidacji jednej z jednostek

    Imperfect integration: Congruency between multiple sensory sources modulates decision-making processes.

    Get PDF
    Decision-making on the basis of multiple information sources is common. However, to what extent such decisions differ from those with a single source remains unclear. We combined cognitive modelling and neural-mass modelling to characterise the neurocognitive process underlying perceptual decision-making with single or double information sources. Ninety-four human participants performed binary decisions to discriminate the coherent motion direction averaged across two independent apertures. Regardless of the angular distance of the apertures, separating motion information into two apertures resulted in a reduction in accuracy. Our cognitive and neural-mass modelling results are consistent with the hypotheses that the addition of the second information source led to a lower signal-to-noise ratio of evidence accumulation with two congruent information sources, and a change in the decision strategy of speed-accuracy trade-off with two incongruent sources. Thus, our findings support a robust behavioural change in relation to multiple information sources, which have congruency-dependent impacts on selective decision-making subcomponents

    Role of Military Unit in Contemporary Process of Structural Spatial Changes of the City in Case of 艁ask

    No full text
    Dokonuj膮ca si臋 w ostatnich latach reorganizacja armii spowodowa艂a du偶e zmiany w przestrzennym rozmieszczeniu jednostek wojskowych. Cz臋艣膰 z nich zosta艂a ca艂kowicie zlikwidowana, inne zosta艂y rozbudowane i unowocze艣nione. Przyczyni艂o si臋 to tak偶e do przemian w strukturze funkcjonalno-przestrzennej obszar贸w miejskich zwi膮zanych z wojskiem. Szczeg贸lnie widoczne jest to w przypadku mniejszych o艣rodk贸w miejskich, w kt贸rych wojsko i spo艂eczno艣膰 z nim zwi膮zana maj膮 istotny wp艂yw na kszta艂towanie przestrzeni miejskiej. Artyku艂 ma na celu przedstawienie wp艂ywu jednostki wojskowej na przeobra偶enia struktury funkcjonalno- -przestrzennej ma艂ego miasta, jakim jest 艁ask. Rozw贸j tego o艣rodka, od ponad pi臋膰dziesi臋ciu lat zwi膮zanego z wojskiem, w du偶ej mierze uwarunkowany by艂 ulokowaniem w jego pobli偶u obiekt贸w wojskowych. Opr贸cz infrastruktury stricte wojskowej na kszta艂towanie struktury przestrzennej miasta wp艂ywaj膮 nale偶膮ce do resortu obrony obiekty mieszkalne, przeznaczone dla pracownik贸w jednostki i ich rodzin. Proces przeobra偶e艅 nie omin膮艂 r贸wnie偶 zagospodarowania teren贸w powojskowych, powsta艂ych po likwidacji jednej z jednostek.The reorganization of the army in last few years has been caused major changes in the spatial distribution of military units. Some of them have been completely li膮uidated, while others have been expanded and modernized. This has contributed to changes in the functional-spatial structure of urban areas associated with the army. This is particularly evident in smaller cities where the army and the community linked to it have a significant impact on the shaping of urban space. Article aims to describe the impact of a military unit on the transformation of functional-spatialstructure of a smali town, which 艁ask is. Development of this town, for over fifty years connected with the army, is largely associated with localized in the neighborhood the military facilities. In addition to military infrastructure on the formation of the spatial structure of 艁ask affects the belonging to the Ministry of Defense residential buildings for individual workers and their families. The process also includes changes in land use of former military unit

    A spiking neuron model of inferential decision making : urgency, uncertainty, and the speed-accuracy tradeoff

    No full text
    Decision making (DM) requires the coordination of anatomically and functionally distinct cortical and subcortical areas. While previous computational models have studied these subsystems in isolation, few models explore how DM holistically arises from their interaction. We propose a spiking neuron model that unifies various components of DM, then show that the model performs an inferential decision task in a human-like manner. The model (a) includes populations corresponding to dorsolateral prefrontal cortex, orbitofrontal cortex, right inferior frontal cortex, pre-supplementary motor area, and basal ganglia; (b) is constructed using 8000 leaky-integrate-and-fire neurons with 7 million connections; and (c) realizes dedicated cognitive operations such as weighted valuation of inputs, accumulation of evidence for multiple choice alternatives, competition between potential actions, dynamic thresholding of behavior, and urgency-mediated modulation. We show that the model reproduces reaction time distributions and speed-accuracy tradeoffs from humans performing the task. These results provide behavioral validation for tasks that involve slow dynamics and perceptual uncertainty; we conclude by discussing how additional tasks, constraints, and metrics may be incorporated into this initial framework

    A computational biomarker of juvenile myoclonic epilepsy from resting-state MEG

    Get PDF
    Objective For people with idiopathic generalized epilepsy, functional networks derived from their resting-state scalp electrophysiological recordings have shown an inherent higher propensity to generate seizures than those from healthy controls when assessed using the concept of brain network ictogenicity (BNI). Herein we tested whether the BNI framework is applicable to resting-state magnetoencephalography (MEG) from people with juvenile myoclonic epilepsy (JME). Methods The BNI framework consists in deriving a functional network from apparently normal brain activity, placing a mathematical model of ictogenicity into the network and then computing how often such network generates seizures in silico. We considered data from 26 people with JME and 26 healthy controls. Results We found that resting-state MEG functional networks from people with JME are characterized by a higher propensity to generate seizures (i.e., higher BNI) than those from healthy controls. We found a classification accuracy of 73%. Conclusions The BNI framework is applicable to MEG and was capable of differentiating people with epilepsy from healthy controls. Significance The BNI framework may be applied to resting-state MEG to aid in epilepsy diagnosis

    BCIAUT-P300: A Multi-Session and Multi-Subject Benchmark Dataset on Autism for P300-Based Brain-Computer-Interfaces

    Get PDF
    There is a lack of multi-session P300 datasets for Brain-Computer Interfaces (BCI). Publicly available datasets are usually limited by small number of participants with few BCI sessions. In this sense, the lack of large, comprehensive datasets with various individuals and multiple sessions has limited advances in the development of more effective data processing and analysis methods for BCI systems. This is particularly evident to explore the feasibility of deep learning methods that require large datasets. Here we present the BCIAUT-P300 dataset, containing 15 autism spectrum disorder individuals undergoing 7 sessions of P300-based BCI joint-attention training, for a total of 105 sessions. The dataset was used for the 2019 IFMBE Scientific Challenge organized during MEDICON 2019 where, in two phases, teams from all over the world tried to achieve the best possible object-detection accuracy based on the P300 signals. This paper presents the characteristics of the dataset and the approaches followed by the 9 finalist teams during the competition. The winner obtained an average accuracy of 92.3% with a convolutional neural network based on EEGNet. The dataset is now publicly released and stands as a benchmark for future P300-based BCI algorithms based on multiple session data
    corecore