Expectancies in decision making, reinforcement
... model-based decision making. Recall that dynamic evaluation lookahead requires both the generation and evaluation of potential choice outcomes, implying the existence of neural representations spatio-temporally dissociated from current stimuli (Johnson et al., 2009a). Johnson and Redish (2007) rece ...
... model-based decision making. Recall that dynamic evaluation lookahead requires both the generation and evaluation of potential choice outcomes, implying the existence of neural representations spatio-temporally dissociated from current stimuli (Johnson et al., 2009a). Johnson and Redish (2007) rece ...
3.05 Neural Substrates of Remembering – Electroencephalographic
... must thus be generated by sets of neurons that are oriented together in such a way to produce electrical fields that will conduct to distant locations where recording electrodes are placed. Much neural activity may be electrically silent at the scalp, in the sense that the EEG may not include signal ...
... must thus be generated by sets of neurons that are oriented together in such a way to produce electrical fields that will conduct to distant locations where recording electrodes are placed. Much neural activity may be electrically silent at the scalp, in the sense that the EEG may not include signal ...
A computational model of action selection in the basal ganglia. I. A
... next'. This situation is particularly acute if several such units are competing for a common resource as, for example, with the neural systems involved in feeding and drinking, both of which require the use of oral muscles. In other cases, multiple simultaneous actions may be permitted as, for examp ...
... next'. This situation is particularly acute if several such units are competing for a common resource as, for example, with the neural systems involved in feeding and drinking, both of which require the use of oral muscles. In other cases, multiple simultaneous actions may be permitted as, for examp ...
Canonical Microcircuits for Predictive Coding
... bility—defined as the number of observed connections divided by total number of pairs recorded—and connection strength— defined in terms of postsynaptic responses. Thomson et al. (2002) used these techniques to study layers 2 to 5 (L2 to L5) of the cat and rat visual systems. The most frequently con ...
... bility—defined as the number of observed connections divided by total number of pairs recorded—and connection strength— defined in terms of postsynaptic responses. Thomson et al. (2002) used these techniques to study layers 2 to 5 (L2 to L5) of the cat and rat visual systems. The most frequently con ...
Brain-Computer - University of South Australia
... long-term restrictions of autonomy [Salvini et al, 2008]. Privacy has been specifically identified as an ethical issue relevant to BCIs [Wolpaw et al, 2006]. However, the only detailed discussion of privacy and BCIs [Denning et al, 2009] conflates privacy with data security and therefore conceptuali ...
... long-term restrictions of autonomy [Salvini et al, 2008]. Privacy has been specifically identified as an ethical issue relevant to BCIs [Wolpaw et al, 2006]. However, the only detailed discussion of privacy and BCIs [Denning et al, 2009] conflates privacy with data security and therefore conceptuali ...
Hybrid Scheme for Modeling Local Field Potentials from Point
... (I) in cortical layers 2/3, 4, 5, and 6. External input is provided by a population of TC neurons and cortico-cortical afferents. The color coding of neuron populations is used consistently throughout this paper. Red arrows: excitatory connections. Blue arrows: inhibitory connections. See Tables 1–2 ...
... (I) in cortical layers 2/3, 4, 5, and 6. External input is provided by a population of TC neurons and cortico-cortical afferents. The color coding of neuron populations is used consistently throughout this paper. Red arrows: excitatory connections. Blue arrows: inhibitory connections. See Tables 1–2 ...
Article - Dynamic Connectome Lab
... range of frequencies from 2 to 450 Hz (the overlap continues down to 1 Hz; this is not shown to improve the plot resolution at higher frequencies). The results in Fig. 1 were generated using uncorrelated synaptic inputs over the entire dendritic tree of each neuron in each population, with neurons a ...
... range of frequencies from 2 to 450 Hz (the overlap continues down to 1 Hz; this is not shown to improve the plot resolution at higher frequencies). The results in Fig. 1 were generated using uncorrelated synaptic inputs over the entire dendritic tree of each neuron in each population, with neurons a ...
INTRAANALYZER CONDITIONED REFLEX PROPERTIES OF TWO
... form of reflex activity was summed. The literature contains experimentally substantiated data, according to which a direct neuronal connection may be identified by using certain parameters of cross-correlation histograms. It is customary to assume that histograms with nonsymmetrical and short-term i ...
... form of reflex activity was summed. The literature contains experimentally substantiated data, according to which a direct neuronal connection may be identified by using certain parameters of cross-correlation histograms. It is customary to assume that histograms with nonsymmetrical and short-term i ...
An implantable neural probe with monolithically integrated dielectric
... a region can provide information about their roles in both network functions and behavior. This goal cannot be achieved effectively by electrical stimulation since it indiscriminately stimulates neuronal processes, including somata, dendrites and axons in a complex manner [2]. Recent advances in opt ...
... a region can provide information about their roles in both network functions and behavior. This goal cannot be achieved effectively by electrical stimulation since it indiscriminately stimulates neuronal processes, including somata, dendrites and axons in a complex manner [2]. Recent advances in opt ...
Multiplicative Gain Changes Are Induced by Excitation or Inhibition
... in vivo are measured in the curve of firing rate versus stimulus parameter. We find that when this curve is considered, and when the nonlinear relationships between stimulus parameter and input current and between input current and firing rate in vivo are taken into account, then simple excitation o ...
... in vivo are measured in the curve of firing rate versus stimulus parameter. We find that when this curve is considered, and when the nonlinear relationships between stimulus parameter and input current and between input current and firing rate in vivo are taken into account, then simple excitation o ...
Spike-Timing Theory of Working Memory
... Copyright: ß 2010 Szatmáry, Izhikevich. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Funding: This work was ...
... Copyright: ß 2010 Szatmáry, Izhikevich. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Funding: This work was ...
The Sensitivity of Belief Networks to Imprecise Probabilities: An
... other real application domains than arti cially-generated networks. The problem domain that we use in this study is medical diagnosis for hepatobiliary disorders (liver and bile diseases). We derived the experimental BNs from an early quasi-probabilistic KB, named Computer-based Patient Case Simulat ...
... other real application domains than arti cially-generated networks. The problem domain that we use in this study is medical diagnosis for hepatobiliary disorders (liver and bile diseases). We derived the experimental BNs from an early quasi-probabilistic KB, named Computer-based Patient Case Simulat ...
Habituation, sensitization and Pavlovian conditioning
... stimulus as the CS. The more proximal nature of the US relative to the CS is true even for paradigms where the CS and the US are first encountered through the same sensory modality. For example, in taste preference conditioning, the gustatory stimulus is the CS, and the nutritive value of food which ...
... stimulus as the CS. The more proximal nature of the US relative to the CS is true even for paradigms where the CS and the US are first encountered through the same sensory modality. For example, in taste preference conditioning, the gustatory stimulus is the CS, and the nutritive value of food which ...
RHYTHM GENERATION IN SPINAL CULTURES: IS IT THE
... 2001). Since theses rhythms share many properties with the bursting induced in spinal cultures by disinhibition, we will discuss this model more extensively later in this chapter. 1.1.5 CPGs in rodent spinal cord (rat and mouse) The isolated spinal cord of the neonatal rat, introduced in 1987 by Kud ...
... 2001). Since theses rhythms share many properties with the bursting induced in spinal cultures by disinhibition, we will discuss this model more extensively later in this chapter. 1.1.5 CPGs in rodent spinal cord (rat and mouse) The isolated spinal cord of the neonatal rat, introduced in 1987 by Kud ...
Chapter 9b final
... fMRI – same regions of the hippocampus were activated during route learning and during SWS the following night Although people who are awakened during SWS seldom report dreaming, sleeping brain rehearses information that was acquired during the previous day Consistent with animal data ...
... fMRI – same regions of the hippocampus were activated during route learning and during SWS the following night Although people who are awakened during SWS seldom report dreaming, sleeping brain rehearses information that was acquired during the previous day Consistent with animal data ...
NIH Public Access - Department of Biochemistry | UW
... Two models are likelihood equivalent if f(y | M1) = f(y | M2) for any data set y, where f(y | M) represent the prior predictive density of the data, y, conditional on model M [Heckerman, Geiger and Chickering (1995)]. In this paper we extend the definition of likelihood equivalence to predictive den ...
... Two models are likelihood equivalent if f(y | M1) = f(y | M2) for any data set y, where f(y | M) represent the prior predictive density of the data, y, conditional on model M [Heckerman, Geiger and Chickering (1995)]. In this paper we extend the definition of likelihood equivalence to predictive den ...
Rules relating connections to cortical structure in primate prefrontal cortex H. Barbas
... sensory areas always originate in areas with higher laminar de4nition in comparison with the site of termination, while the opposite is true for projections proceeding in the reverse direction. We recently tested the structural model in the connections between prefrontal areas with medial temporal a ...
... sensory areas always originate in areas with higher laminar de4nition in comparison with the site of termination, while the opposite is true for projections proceeding in the reverse direction. We recently tested the structural model in the connections between prefrontal areas with medial temporal a ...
Mechanisms of Maximum Information Preservation in the Drosophila
... neurons in the Drosophila antennal lobe: ORNs, PNs, and LNs. We assume that these neurons fire according to a Poisson process with a time-independent firing rate for ORNs and a time-dependent firing rate for PNs and LNs. Our network model has a two-layer feed-forward architecture consisting of an OR ...
... neurons in the Drosophila antennal lobe: ORNs, PNs, and LNs. We assume that these neurons fire according to a Poisson process with a time-independent firing rate for ORNs and a time-dependent firing rate for PNs and LNs. Our network model has a two-layer feed-forward architecture consisting of an OR ...
Modulation of Synaptic Transmission to Second
... (AP-5), and 10 M CNQX. Membrane potential was changed from ⫺130 to ⫺30 mV in 10-mV steps. The duration of each step was 500 ms and voltage steps were applied every 2 s. Data Analysis. Data are presented as mean ⫾ S.E.M. Peak amplitudes of averaged evoked postsynaptic currents (ⱖ10 sweeps) were calc ...
... (AP-5), and 10 M CNQX. Membrane potential was changed from ⫺130 to ⫺30 mV in 10-mV steps. The duration of each step was 500 ms and voltage steps were applied every 2 s. Data Analysis. Data are presented as mean ⫾ S.E.M. Peak amplitudes of averaged evoked postsynaptic currents (ⱖ10 sweeps) were calc ...