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Messages from the Brain Connectivity Regarding Neural Correlates
Messages from the Brain Connectivity Regarding Neural Correlates

... seeking neural correlates of consciousness (NCC) has ranged from the neuronal level to the system level. Regarding system level studies, there is a large body of evidence supporting the idea that functional connectivity studies can help in examining NCC. Functional connectivity studies have suggeste ...
Saccade-Related Spread of Activity Across Superior Colliculus May
Saccade-Related Spread of Activity Across Superior Colliculus May

... experiments saccade length did not increase. Taken together, these experiments show two things: 1) sometimes a low level of activity spreads through the SC buildup neurons at around J Neurophysiol • VOL ...
Saccade-Related Spread of Activity Across
Saccade-Related Spread of Activity Across

... experiments saccade length did not increase. Taken together, these experiments show two things: 1) sometimes a low level of activity spreads through the SC buildup neurons at around J Neurophysiol • VOL ...
Microcircuits in visual cortex Kevan AC Martin
Microcircuits in visual cortex Kevan AC Martin

Visual and oculomotor selection: links, causes and
Visual and oculomotor selection: links, causes and

Rich-club organization in effective connectivity among cortical neurons
Rich-club organization in effective connectivity among cortical neurons

... Many studies have focused on communication networks between cortical brain regions. In contrast, very few studies have examined communication networks within a cortical region. This is the first study to combine such a large number of neurons (several hundred at a time) with such high temporal resol ...
Optogenetic Brain Interfaces
Optogenetic Brain Interfaces

... Therefore, microbial rhodopsins can be grouped into pumps, acting as photodiodes, and light-triggered ion channels which can be considered as light-dependent resistors. Regardless of the mechanism of action or the ion species conducted, all microbial rhodopsins rely on the same fundamental photoreac ...
HTM Cortical Learning Algorithms
HTM Cortical Learning Algorithms

... many levels in the hierarchy are necessary? There is a tradeoff between how much memory is allocated to each level and how many levels are needed. Fortunately, HTMs automatically learn the best possible representations at each level given the statistics of the input and the amount of resources alloc ...
1 Spiking Neurons
1 Spiking Neurons

... time window is set by the experimenter and depends on the type of neuron recorded from and the stimulus. In practice, to get sensible averages, several spikes should occur within the time window. Values of T = 100 ms or T = 500 ms are typical, but the duration may also be longer or shorter. This def ...
Decoding Complete Reach and Grasp Actions from Local Primary
Decoding Complete Reach and Grasp Actions from Local Primary

The control of rostrocaudal pattern in the developing spinal cord
The control of rostrocaudal pattern in the developing spinal cord

14. Development and Plasticity
14. Development and Plasticity

... all presynaptic spike trains) in simulation of an IF-neuron with 1000 input channels. The spike trains that lead to the results shown by stars were generated with each weight value fixed to value 0.015. The cross-correlations are consistent with zero when considered within the variance indicated by ...
14. Development and Plasticity
14. Development and Plasticity

Ramayya, A. G., Zaghloul, K. A., Weidemann, C. T., Baltuch, G. H.
Ramayya, A. G., Zaghloul, K. A., Weidemann, C. T., Baltuch, G. H.

Frontostriatal mechanisms in instruction-based learning
Frontostriatal mechanisms in instruction-based learning

... almost instantaneous) adoption of novel goal-directed behaviors. The overarching goal is to sketch the emerging framework for examining instruction-based learning and how this can be related to more established research approaches to instrumental learning and goaldirected action. We particularly foc ...
The neural basis for combinatorial coding in a cortical population response
The neural basis for combinatorial coding in a cortical population response

... The modern study of neural coding began with the discovery that neural responses to sensory stimuli are composed of discrete events: either a cell generates an action potential or it remains silent (Adrian, 1926). If we average, either over long periods of time or over many presentations of the same ...
Large-scale spatiotemporal spike patterning consistent with
Large-scale spatiotemporal spike patterning consistent with

... of significant directed connections between recorded neurons with narrow spike waveforms and mean spike rates of at least 1 Hz (to ensure numerical stability) in different time windows. The temporal evolution of the networks in 150 ms windows incremented by 50 ms steps is illustrated in Fig. 3a for m ...
Neural mechanisms underlying the evolvability of behaviour
Neural mechanisms underlying the evolvability of behaviour

A thalamic reticular networking model of consciousness
A thalamic reticular networking model of consciousness

... [Background]: It is reasonable to consider the thalamus a primary candidate for the location of consciousness, given that the thalamus has been referred to as the gateway of nearly all sensory inputs to the corresponding cortical areas. Interestingly, in an early stage of brain development, communic ...
Predictive Coding as a Model of Biased Competition in Visual
Predictive Coding as a Model of Biased Competition in Visual

... and (equivalently) ...
Integrator or coincidence detector? The role of the cortical neuron
Integrator or coincidence detector? The role of the cortical neuron

Surround suppression explained by long-range
Surround suppression explained by long-range

... of non-random connectivity, both local (P+ ) and long-range projections (PM ; see Methods). We simulated the presentation of wide-field stimulation with grating stimuli, as in Fig. 2, and measured the average correlation coefficient between neurons in the same column. Measurements of correlation coe ...
Stimulus Dependence of Local Field Potential Spectra: Experiment
Stimulus Dependence of Local Field Potential Spectra: Experiment

HIERARCHICAL MODELS OF VARIANCE SOURCES Harri Valpola
HIERARCHICAL MODELS OF VARIANCE SOURCES Harri Valpola

Neural Correlates for Perception of 3D Surface Orientation from
Neural Correlates for Perception of 3D Surface Orientation from

... disparity signals have been found in the parietal (11, 12) and temporal (13, 14) association cortices. However, binocular disparity is not the only cue for depth perception, because we can perceive depth even with one eye closed. Gibson (15) has proposed that texture gradient is an important cue for ...
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Recurrent neural network

A recurrent neural network (RNN) is a class of artificial neural network where connections between units form a directed cycle. This creates an internal state of the network which allows it to exhibit dynamic temporal behavior. Unlike feedforward neural networks, RNNs can use their internal memory to process arbitrary sequences of inputs. This makes them applicable to tasks such as unsegmented connected handwriting recognition or speech recognition
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