15 papers · ranked by Valyu relevance
Christoph Kayser, Robin A. A. Ince, Stefano Panzeri, Tim Behrens
While sensory neurons carry behaviorally relevant information in responses that often extend over hundreds of milliseconds, the key units of neural information likely consist of much shorter and temporally precise spike patterns. The mechanisms and temporal reference frames by which sensory networks partition responses…
Wiktor F Młynarski, Ann M Hermundstad, Stephanie Palmer
Behavior relies on the ability of sensory systems to infer properties of the environment from incoming stimuli. The accuracy of inference depends on the fidelity with which behaviorally relevant properties of stimuli are encoded in neural responses. High-fidelity encodings can be metabolically costly, but low-fidelity…
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…
Klaus Wimmer, K. Jannis Hildebrandt, R. Matthias Hennig, Klaus Obermayer + 1 more
'Klaus Obermayer' 'Peter E. Latham'] Sensory systems adapt their neural code to changes in the sensory environment, often on multiple time scales. Here, we report a new form of adaptation in a first-order auditory interneuron (AN2) of crickets. We characterize the response of the AN2 neuron to amplitude-modulated sound…
Charles Rodenkirch, Qi Wang, Bruce Young
Simple Summary The locus coeruleus-norepinephrine (LC-NE) system plays a critical role in regulating various brain functions through its diffuse projections in the brain. However, how the LC-NE system modulates temporal coding of sensory information along the sensory pathway remains poorly understood. To address this…
Peter Cariani, Janet M. Baker
Here we present evidence for the ubiquity of fine spike timing and temporal coding broadly observed across sensory systems and widely conserved across diverse phyla, spanning invertebrates and vertebrates. A taxonomy of basic neural coding types includes channel activation patterns, temporal patterns of spikes, and…
Angel Lareo, Caroline G. Forlim, Reynaldo D. Pinto, Pablo Varona + 1 more
Closed-loop activity-dependent stimulation is a powerful methodology to assess information processing in biological systems. In this context, the development of novel protocols, their implementation in bioinformatics toolboxes and their application to different description levels open up a wide range of possibilities…
Ben D. B. Willmore, Andrew J. King
Efficient coding is the general principle that sensory systems in the brain optimize their responses and representations to maximize use of the available neuronal resources, subject to relevant constraints (44, 145). The dynamic range adaptation described above can be considered in these terms: neurons adapt their…
Ehud Ahissar, Amos Arieli
During natural viewing, the eyes are never still. Even during fixation, miniature movements of the eyes move the retinal image across tens of foveal photoreceptors. Most theories of vision implicitly assume that the visual system ignores these movements and somehow overcomes the resulting smearing. However, evidence…
Byron H. Price, Jeffrey P. Gavornik
While it is universally accepted that the brain makes predictions, there is little agreement about how this is accomplished and under which conditions. Accurate prediction requires neural circuits to learn and store spatiotemporal patterns observed in the natural environment, but it is not obvious how such information…
Duho Sihn, Sung-Phil Kim
Hierarchical structures constitute a wide array of brain areas, including the visual system. One of the important questions regarding visual hierarchical structures is to identify computational principles for assigning functions that represent the external world to hierarchical structures of the visual system. Given…
Efe Soyman, David S. Vicario, Melissa J. Coleman
Sensory representations in the adult brain must undergo dynamic changes to adapt to the complexity of the external world. This study investigated how passive exposure to novel sounds modifies neural representations to facilitate recognition and discrimination, using the zebra finch model organism. The neural responses…
Tiberiu Tesileanu, Eugenio Piasini, Vijay Balasubramanian
Neural circuits in the periphery of the visual, auditory, and olfactory systems are believed to use limited resources efficiently to represent sensory information by adapting to the statistical structure of the natural environment. This “efficient coding” principle has been used to explain many aspects of early visual…
Ryosuke Kuboki, Yasuko Sugase-Miyamoto, Narihisa Matsumoto, Barry J. Richmond + 1 more
'Barry J. Richmond' 'Munetaka Shidara'] We recognize objects even when they are partially degraded by visual noise. We studied the relation between the amount of visual noise (5, 10, 15, 20, or 25%) degrading 8 black-and-white stimuli and stimulus identification in 2 monkeys performing a sequential delayed…
Anitha Manohar, Robert D. Flint, Eric Knudsen, Karen A. Moxon + 1 more
'Thomas Boraud'] Stereotypical locomotor movements can be made without input from the brain after a complete spinal transection. However, the restoration of functional gait requires descending modulation of spinal circuits to independently control the movement of each limb. To evaluate whether a brain-machine interface…