Meerkat Manor: An approach to simulated, genetic co
... Adding food worked well, as meerkats were able to learn how to move appropriately when food is nearby. Mind you, no hawks are present yet. It’s merely meerkats and food in a safe environment. Yet, the meerkats were still often too good; they initially ate all the food quickly and died due to starvat ...
... Adding food worked well, as meerkats were able to learn how to move appropriately when food is nearby. Mind you, no hawks are present yet. It’s merely meerkats and food in a safe environment. Yet, the meerkats were still often too good; they initially ate all the food quickly and died due to starvat ...
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... simple loss of information regarding expected value. Instead, without orbitofrontal input, dopaminergic error signals failed to reflect internal information about the impending response that distinguished externally similar states leading to differently valued future rewards. These results are consi ...
... simple loss of information regarding expected value. Instead, without orbitofrontal input, dopaminergic error signals failed to reflect internal information about the impending response that distinguished externally similar states leading to differently valued future rewards. These results are consi ...
Sensory Adaptation and Short Term Plasticity as Bayesian
... filter). We then model the response of the postsynaptic neuron by the observed presynaptic activity divided by the total estimate of the presynaptic excitability (see Methods for details). The effect of this optimal adaptation rule is to normalize the inputs from each presynaptic neuron. Inputs from ...
... filter). We then model the response of the postsynaptic neuron by the observed presynaptic activity divided by the total estimate of the presynaptic excitability (see Methods for details). The effect of this optimal adaptation rule is to normalize the inputs from each presynaptic neuron. Inputs from ...
Modulation of Inhibitory Synaptic Potentials in the Piriform Cortex
... linear function is used for computing the summed firing rate of the inhibitory population. The constant A represents the afferent input to a population of neurons during a period of time. This constant represents both the summed firing rate across a population of mitral cells in the olfactory bulb i ...
... linear function is used for computing the summed firing rate of the inhibitory population. The constant A represents the afferent input to a population of neurons during a period of time. This constant represents both the summed firing rate across a population of mitral cells in the olfactory bulb i ...
An Integrative Theory on Prefrontal Cortex Function
... them. They provide bias signals throughout much of the rest of the brain, affecting not only visual processes but also other sensory modalities, as well as systems responsible for response execution, memory retrieval, emotional evaluation, etc. The aggregate effect of these bias signals is to guide ...
... them. They provide bias signals throughout much of the rest of the brain, affecting not only visual processes but also other sensory modalities, as well as systems responsible for response execution, memory retrieval, emotional evaluation, etc. The aggregate effect of these bias signals is to guide ...
Neuromorphic computing
... Point neuron simulators - NEST The simulation is discretized into time steps of a certain duration (Δ). The simulation loop works as follows: 1. PSC for all delivered events are computed 2. membrane potential is updated and new events are bufferized 3. new events are sent towards post-synaptic node ...
... Point neuron simulators - NEST The simulation is discretized into time steps of a certain duration (Δ). The simulation loop works as follows: 1. PSC for all delivered events are computed 2. membrane potential is updated and new events are bufferized 3. new events are sent towards post-synaptic node ...
view - E-LIB Bremen - Universität Bremen
... can be modelled with high precision by using compact mathematical models with only few parameters. There are competitions held where the goal is to predict the electrical behavior of neuron, and these models reach a very high accuracy in the prediction of neuronal spike times [3]. With modern superc ...
... can be modelled with high precision by using compact mathematical models with only few parameters. There are competitions held where the goal is to predict the electrical behavior of neuron, and these models reach a very high accuracy in the prediction of neuronal spike times [3]. With modern superc ...
MAY 5, 2000 Submitted to the Annual Review of Neuroscience AN
... patterns of activity that represent goals and the means to achieve them. They provide bias signals throughout much of the rest of the brain, affecting not only visual processes, but also other sensory modalities, as well as systems responsible for response execution, memory retrieval, emotional eval ...
... patterns of activity that represent goals and the means to achieve them. They provide bias signals throughout much of the rest of the brain, affecting not only visual processes, but also other sensory modalities, as well as systems responsible for response execution, memory retrieval, emotional eval ...
Evidence for time division multiplexing of multiple simultaneous
... bioRxiv preprint first posted online Feb. 9, 2017; doi: http://dx.doi.org/10.1101/107185. The copyright holder for this preprint (which was not peer-reviewed) is the author/funder. All rights reserved. No reuse allowed without permission. ...
... bioRxiv preprint first posted online Feb. 9, 2017; doi: http://dx.doi.org/10.1101/107185. The copyright holder for this preprint (which was not peer-reviewed) is the author/funder. All rights reserved. No reuse allowed without permission. ...
body proportions in infancy and early childhood
... • Over one quarter of the world’s children under age 5 are moderately or severely underweight. • In 2012, 15% of American households experienced food insecurity (lack of consistent access to food). • The most common nutrients missing from infants and toddlers’ diets are iron, zinc, and calcium. Kuth ...
... • Over one quarter of the world’s children under age 5 are moderately or severely underweight. • In 2012, 15% of American households experienced food insecurity (lack of consistent access to food). • The most common nutrients missing from infants and toddlers’ diets are iron, zinc, and calcium. Kuth ...
Schema Theory
... predictor element to compensate for delays from the periphery. The result is a feedback system which can act like a feedforward system described by the optimality principle in "familiar" situations, where the conditions of the desired behavior are not perturbed and accuracy requirements are such tha ...
... predictor element to compensate for delays from the periphery. The result is a feedback system which can act like a feedforward system described by the optimality principle in "familiar" situations, where the conditions of the desired behavior are not perturbed and accuracy requirements are such tha ...
A Weighted and Directed Interareal Connectivity
... way to explore their network properties (Watts and Strogatz 1998; Barabasi and Albert 1999; Watts 1999; Newman 2003; Boccaletti et al. 2006). Just as with many other real-world networks (Boccaletti et al. 2006), cortico-cortical connections are directed as well as weighted. Here, we investigated bot ...
... way to explore their network properties (Watts and Strogatz 1998; Barabasi and Albert 1999; Watts 1999; Newman 2003; Boccaletti et al. 2006). Just as with many other real-world networks (Boccaletti et al. 2006), cortico-cortical connections are directed as well as weighted. Here, we investigated bot ...
Mechanisms of excitability in the central and peripheral nervous
... to investigate whether KA can suppress the cellular response to synchronized synaptic input while minimally affecting desynchronized input. • Objective 2: To investigate whether KA can suppress fast ripple activity Fast ripples, high–frequency oscillations (200–1000 Hz), have been identified as poss ...
... to investigate whether KA can suppress the cellular response to synchronized synaptic input while minimally affecting desynchronized input. • Objective 2: To investigate whether KA can suppress fast ripple activity Fast ripples, high–frequency oscillations (200–1000 Hz), have been identified as poss ...
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... behaving as clocklike oscillators. Synaptic inputs to cortical neurons measured in vivo also display large stochastic fluctuations (236). Such irregular neural firing patterns may be computationally desirable to maximize information content of spike trains for neural coding of sensory information (3 ...
... behaving as clocklike oscillators. Synaptic inputs to cortical neurons measured in vivo also display large stochastic fluctuations (236). Such irregular neural firing patterns may be computationally desirable to maximize information content of spike trains for neural coding of sensory information (3 ...
Neurophysiological and Computational Principles of Cortical
... behaving as clocklike oscillators. Synaptic inputs to cortical neurons measured in vivo also display large stochastic fluctuations (236). Such irregular neural firing patterns may be computationally desirable to maximize information content of spike trains for neural coding of sensory information (3 ...
... behaving as clocklike oscillators. Synaptic inputs to cortical neurons measured in vivo also display large stochastic fluctuations (236). Such irregular neural firing patterns may be computationally desirable to maximize information content of spike trains for neural coding of sensory information (3 ...
The Neural Basis of Human Error Processing: Reinforcement
... (1992) showed that the amplitude of the ERN increased as participants were motivated, via a payoff function, to strive for accuracy over speed in a choice reaction-time task (see also Gehring et al., 1993). His work has suggested that the system that produces the ERN is sensitive to the importance o ...
... (1992) showed that the amplitude of the ERN increased as participants were motivated, via a payoff function, to strive for accuracy over speed in a choice reaction-time task (see also Gehring et al., 1993). His work has suggested that the system that produces the ERN is sensitive to the importance o ...
Activity of Defined Mushroom Body Output Neurons
... compartment marker proteins. The dendritic marker DenMark (Nicolaı¨ et al., 2010) localized exclusively to the horizontal MB lobe tips, while the presynaptic active zone protein Syd-1 (Owald et al., 2010) localized to the processes of the M4/6 neurons that lie outside of the MB in the superior media ...
... compartment marker proteins. The dendritic marker DenMark (Nicolaı¨ et al., 2010) localized exclusively to the horizontal MB lobe tips, while the presynaptic active zone protein Syd-1 (Owald et al., 2010) localized to the processes of the M4/6 neurons that lie outside of the MB in the superior media ...
Temporal modulation of the dynamics of neuronal networks with
... research was for me at that time. In addition, I also want to stress that the internships tightly supervised by Pedro Gonçalves, Christian Machens and Sophie Denève have deeply shaped my path in research. The atmosphere and the extreme diversity and open-mindedness of the Group for Neural Theory at ...
... research was for me at that time. In addition, I also want to stress that the internships tightly supervised by Pedro Gonçalves, Christian Machens and Sophie Denève have deeply shaped my path in research. The atmosphere and the extreme diversity and open-mindedness of the Group for Neural Theory at ...
Repetition suppression - Philosophical Transactions of the Royal
... presented again, after it had been turned off for 15 min, the response of the neuron was fully recovered (figure 1e). Repetition suppression has since been observed in singleunit activity across a large number of different experimental conditions and brain regions, including the IT cortex [35,37–39] ...
... presented again, after it had been turned off for 15 min, the response of the neuron was fully recovered (figure 1e). Repetition suppression has since been observed in singleunit activity across a large number of different experimental conditions and brain regions, including the IT cortex [35,37–39] ...
The encoding and decoding of com-
... readout stage. We propose a novel neural readout circuit based on wavelet transform that decodes the TPC over different frequency bands. We show that, in comparison with pure linear readouts used previously, the proposed system provides a robust, fast and highly compact representation of visual inpu ...
... readout stage. We propose a novel neural readout circuit based on wavelet transform that decodes the TPC over different frequency bands. We show that, in comparison with pure linear readouts used previously, the proposed system provides a robust, fast and highly compact representation of visual inpu ...
Condition interference in rats performing a choice task with switched
... of at least 20 trials. Subsequently, the block was changed when the rat selected the more rewarding hole in ≥80% of the last 20 variable-reward-condition trials (Ito and Doya, 2009; Funamizu et al., 2012). The block change was conducted so as to (i) include all four reward-probability settings in ea ...
... of at least 20 trials. Subsequently, the block was changed when the rat selected the more rewarding hole in ≥80% of the last 20 variable-reward-condition trials (Ito and Doya, 2009; Funamizu et al., 2012). The block change was conducted so as to (i) include all four reward-probability settings in ea ...