5,117 results found
    1. Neuroscience

    Noise-induced plasticity of KCNQ2/3 and HCN channels underlies vulnerability and resilience to tinnitus

    Shuang Li, Bopanna I Kalappa, Thanos Tzounopoulos
    Mice that successfully avoid developing tinnitus despite exposure to excessive noise show spontaneous recovery of KCNQ2/3 potassium channel activity associated with a reduction in HCN channel activity in auditory brainstem neurons.
    1. Ecology
    2. Microbiology and Infectious Disease

    Noisy metabolism can promote microbial cross-feeding

    Jaime G Lopez, Ned S Wingreen
    Noise-averaging cooperation (NAC) is a novel theory for the emergence of microbial cross-feeding by which noisy intracellular metabolism can promote cooperation and cross-feeding among cells.
    1. Neuroscience

    Error prediction determines the coordinate system used for the representation of novel dynamics

    Raz Leib, David Franklin
    Motor memories represent dynamics in a minimum noise framework such that the execution of forces based on this representation minimizes the force distortion arising from neural noise, explaining the prior inconsistent force generalization results.
    1. Neuroscience

    Nucleus accumbens dopamine tracks aversive stimulus duration and prediction but not value or prediction error

    Jessica N Goedhoop, Bastijn JG van den Boom ... Ingo Willuhn
    The extracellular concentration of dopamine in the nucleus accumbens core is progressively diminished by white noise, an underutilized, easy-to-titrate aversive stimulus, but is unaffected by white-noise intensity, context valence, and associated probabilistic contingencies.
    1. Computational and Systems Biology

    Quantifying how post-transcriptional noise and gene copy number variation bias transcriptional parameter inference from mRNA distributions

    Xiaoming Fu, Heta P Patel ... Ramon Grima
    A combined experimental and modeling approach provides insight into potential biases when inferring transcription rates from static mRNA distributions, and shows that correcting for cell-cycle phase and post-transcriptional noise provides rates that agree with live-cell transcription measurements.
    1. Computational and Systems Biology
    2. Developmental Biology

    Noise modulation in retinoic acid signaling sharpens segmental boundaries of gene expression in the embryonic zebrafish hindbrain

    Julian Sosnik, Likun Zheng ... Thomas F Schilling
    Direct measurements of retinoic acid using fluorescence lifetime imaging reveal a new role for cellular retinoic acid binding proteins in noise attenuation that is critical to sharpen hindbrain rhombomere boundaries.
    1. Computational and Systems Biology
    2. Developmental Biology

    Patterning precision under non-linear morphogen decay and molecular noise

    Jan Andreas Adelmann, Roman Vetter, Dagmar Iber
    Statistical analysis of morphogen gradients indicates that non-linear morphogen decay does not lead to significantly increased patterning precision, and in fact, the opposite is observed far from the source.
    1. Neuroscience

    The influence of evidence volatility on choice, reaction time and confidence in a perceptual decision

    Ariel Zylberberg, Christopher R Fetsch, Michael N Shadlen
    A single framework of bounded evidence accumulation resolves the seemingly paradoxical effects of noise on accuracy, reaction time and confidence.
    1. Neuroscience

    Attentional modulation of neuronal variability in circuit models of cortex

    Tatjana Kanashiro, Gabriel Koch Ocker ... Brent Doiron
    Attention reduces noise correlations through enhancing inhibitory feedback in cortical networks.
    1. Computational and Systems Biology

    Paracrine communication maximizes cellular response fidelity in wound signaling

    L Naomi Handly, Anna Pilko, Roy Wollman
    There are inherent tradeoffs in the control of cellular response variability by paracrine communication during the establishment of initial wound response signaling gradients.

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