16 papers · ranked by Valyu relevance
Ioannis Delis, Arno Onken, Philippe G. Schyns, Stefano Panzeri + 1 more
'Marios G. Philiastides'] We develop a novel methodology for the single-trial analysis of multichannel time-varying neuroimaging signals. We introduce the space-by-time M/EEG decomposition, based on Non-negative Matrix Factorization (NMF), which describes single-trial M/EEG signals using a set of non-negative spatial…
Han G. Yi, Zilong Xie, Rachel Reetzke, Alexandros G. Dimakis + 1 more
4## Discussion We demonstrate an innovative application of machine learning principles to reliably extract vowel information from the single-trial speech-evoked FFRs. In our approach, the raw FFR was first projected onto a spectral feature space defined by a multitude of sounds not used in the experiment, contributing…
Ioannis Delis, Bastien Berret, Thierry Pozzo, Stefano Panzeri
Muscle synergies, i.e., invariant coordinated activations of groups of muscles, have been proposed as building blocks that the central nervous system (CNS) uses to construct the patterns of muscle activity utilized for executing movements. Several efficient dimensionality reduction algorithms that extract putative…
Alex Brandmeyer, Jason D. R. Farquhar, James M. McQueen, Peter W. M. Desain + 1 more
'Peter W. M. Desain' 'Wang Zhan'] Brain-computer interfaces (BCIs) are systems that use real-time analysis of neuroimaging data to determine the mental state of their user for purposes such as providing neurofeedback. Here, we investigate the feasibility of a BCI based on speech perception. Multivariate pattern…
Brian J. Fischer, Keanu Shadron, Roland Ferger, José L. Peña + 1 more
'Melissa J. Coleman'] Bayesian models have proven effective in characterizing perception, behavior, and neural encoding across diverse species and systems. The neural implementation of Bayesian inference in the barn owl’s sound localization system and behavior has been previously explained by a non-uniform population…
Stefano Panzeri, Robin A. A. Ince, Mathew E. Diamond, Christoph Kayser
'Christoph Kayser'] The precise timing of action potentials of sensory neurons relative to the time of stimulus presentation carries substantial sensory information that is lost or degraded when these responses are summed over longer time windows. However, it is unclear whether and how downstream networks can access…
Yang Yiling, Katharine Shapcott, Alina Peter, Johanna Klon-Lipok + 3 more
'Huang Xuhui' 'Andreea Lazar' 'Wolf Singer'] Parallel multisite recordings in the visual cortex of trained monkeys revealed that the responses of spatially distributed neurons to natural scenes are ordered in sequences. The rank order of these sequences is stimulus-specific and maintained even if the absolute timing of…
Arno Onken, Jian K. Liu, P. P. Chamanthi R. Karunasekara, Ioannis Delis + 3 more
'Ioannis Delis' 'Tim Gollisch' 'Stefano Panzeri' 'Matthias Bethge'] Advances in neuronal recording techniques are leading to ever larger numbers of simultaneously monitored neurons. This poses the important analytical challenge of how to capture compactly all sensory information that neural population codes carry in…
Charles R. Heller, Stephen V. David, David S Vicario
Rapidly developing technology for large scale neural recordings has allowed researchers to measure the activity of hundreds to thousands of neurons at single cell resolution in vivo. Neural decoding analyses are a widely used tool used for investigating what information is represented in this complex, high-dimensional…
Jorrit S. Montijn, Martin Vinck, Cyriel M. A. Pennartz
The primary visual cortex is an excellent model system for investigating how neuronal populations encode information, because of well-documented relationships between stimulus characteristics and neuronal activation patterns. We used two-photon calcium imaging data to relate the performance of different methods for…
Diego Vidaurre, Nicholas E Myers, Mark Stokes, Anna C Nobre + 1 more
'Mark W Woolrich'] Title: Abstract In this article, we propose a method to track trial-specific neural dynamics of stimulus processing and decision making with high temporal precision. By applying this novel method to a perceptual template-matching task, we tracked representational brain states associated with the…
Amaia Benitez-Andonegui, Rodion Burden, Richard Benning, Rico Möckel + 2 more
'Michael Lührs' 'Bettina Sorger'] Augmented reality (AR) enhances the user’s environment by projecting virtual objects into the real world in real-time. Brain-computer interfaces (BCIs) are systems that enable users to control external devices with their brain signals. BCIs can exploit AR technology to interact with…
Benjamin I. Rapoport, Lorenzo Turicchia, Woradorn Wattanapanitch, Thomas J. Davidson + 2 more
'Thomas J. Davidson' 'Rahul Sarpeshkar' 'Michal Zochowski'] The ability to decode neural activity into meaningful control signals for prosthetic devices is critical to the development of clinically useful brain- machine interfaces (BMIs). Such systems require input from tens to hundreds of brain-implanted recording…
Kang Li, Susanne Ditlevsen, William W Lytton
How the brain makes sense of a complicated environment is an important question, and a first step is to be able to reconstruct the stimulus that give rise to an observed brain response. Neural coding relates neurobiological observations to external stimuli using computational methods. Encoding refers to how a stimulus…
S. Thomas Christie, Hayden R. Johnson, Paul R. Schrater
Human response times conform to several regularities including the Hick-Hyman law, the power law of practice, speed-accuracy trade-offs, and the Stroop effect. Each of these has been thoroughly modeled in isolation, but no account describes these phenomena as predictions of a unified framework. We provide such a…
David Kracht, Steffen Schober
Background Barcode multiplexing is a key strategy for sharing the rising capacity of next-generation sequencing devices: Synthetic DNA tags, called barcodes, are attached to natural DNA fragments within the library preparation procedure. Different libraries, can individually be labeled with barcodes for a joint…