29 results found
    1. Neuroscience

    Dendritic spikes in hippocampal granule cells are necessary for long-term potentiation at the perforant path synapse

    Sooyun Kim et al.
    A novel mechanism of local plasticity in the distal dendrites of hippocampal granule cells.
    1. Neuroscience

    High and asymmetric somato-dendritic coupling of V1 layer 5 neurons independent of visual stimulation and locomotion

    Valerio Francioni et al.
    Layer 5 neuron apical tuft in mouse visual cortex display widespread, highly correlated calcium signals, with a strong and asymmetric coupling to somatic signals, independent of visual stimulation and locomotion.
    1. Neuroscience

    Locus coeruleus to basolateral amygdala noradrenergic projections promote anxiety-like behavior

    Jordan G McCall et al.
    Selective activation of locus coeruleus noradrenergic terminals drives anxiety-like behaviors through activation of β-adrenergic receptors in the basolateral amygdala.
    1. Human Biology and Medicine
    2. Neuroscience

    Unique membrane properties and enhanced signal processing in human neocortical neurons

    Guy Eyal et al.
    Models and experiments reveal that human L2/3 pyramidal neurons have distinctively low specific membrane capacitance which might have a significant impact on signal processing in human neocortex.
    1. Neuroscience

    Dendritic sodium spikes are required for long-term potentiation at distal synapses on hippocampal pyramidal neurons

    Yujin Kim et al.
    At distal synapses onto hippocampal CA1 pyramidal neurons, synaptic plasticity is dependent on dendritically initiated sodium spikes, thus establishing a new role for voltage-gated sodium channels in the dendrites that may have important implications for how learning rules are implemented.
    1. Neuroscience

    Kv1.1 contributes to a rapid homeostatic plasticity of intrinsic excitability in CA1 pyramidal neurons in vivo

    Peter James Morgan et al.
    Short, theta-bursts of action potential firing decrease the global excitability of CA1 pyramidal neurons, providing an internal mechanism which could regulate their allocation to memory engrams.
    1. Computational and Systems Biology
    2. Neuroscience

    Biologically plausible learning in recurrent neural networks reproduces neural dynamics observed during cognitive tasks

    Thomas Miconi
    A biologically plausible learning rule allows recurrent neural networks to learn nontrivial tasks, using only sparse, delayed rewards, and the neural dynamics of trained networks exhibit complex dynamics observed in animal frontal cortices.
    1. Neuroscience

    Reward-based training of recurrent neural networks for cognitive and value-based tasks

    H Francis Song et al.
    A two-part neural network models reward-based training and provides a unified framework in which to study diverse computations that can be compared to electrophysiological recordings from behaving animals.
    1. Neuroscience

    Predicting non-linear dynamics by stable local learning in a recurrent spiking neural network

    Aditya Gilra, Wulfram Gerstner
    Recurrent neuronal networks learn to predict movement in a self-supervised way using biologically plausible learning rules.
    1. Neuroscience

    Coordination of rapid cholinergic and dopaminergic signaling in striatum during spontaneous movement

    Mark Howe et al.
    Optical recordings reveal previously unknown neuromodulator dynamics in the striatum during animal movements that suggest a new interpretation of the underpinnings of bradykinetic movements exhibited in Parkinson's Disease patients.

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