What is the other 85% of V1 doing?
... neurons would probably have some feel for these things. But for the many readers not directly involved in collecting the data, there is no way of knowing these unreported aspects of V1 physiology. It is possible that someone may eventually come up with a theory that could account for some of these u ...
... neurons would probably have some feel for these things. But for the many readers not directly involved in collecting the data, there is no way of knowing these unreported aspects of V1 physiology. It is possible that someone may eventually come up with a theory that could account for some of these u ...
Negative BOLD in Sensory Cortices During
... retrieve an event or a visual image from memory. However the brain mechanisms behind this phenomenon remain poorly understood. Recently, we showed that during visual mental imagery, auditory areas show a much more robust deactivation than during visual perception. Here we ask whether this is a speci ...
... retrieve an event or a visual image from memory. However the brain mechanisms behind this phenomenon remain poorly understood. Recently, we showed that during visual mental imagery, auditory areas show a much more robust deactivation than during visual perception. Here we ask whether this is a speci ...
Arbib, 2008 - Semantic Scholar
... ancestor of human and monkey. I stress that a mirror system does not provide imitation in itself. A monkey with an action in its repertoire may have mirror neurons active both when executing and observing that action yet does not repeat the observed action. Nor, crucially, does it use observation of ...
... ancestor of human and monkey. I stress that a mirror system does not provide imitation in itself. A monkey with an action in its repertoire may have mirror neurons active both when executing and observing that action yet does not repeat the observed action. Nor, crucially, does it use observation of ...
Corticothalamic feedback and sensory processing
... demonstrated by revisiting the experiments of Suga and co-workers [33–35]. Once a sensory signal is initially transmitted from the MGB to the cortex, further activity in the MGB (and other corticofugal targets [39]) is markedly modified by feedback from the activated regions of cortex. The activati ...
... demonstrated by revisiting the experiments of Suga and co-workers [33–35]. Once a sensory signal is initially transmitted from the MGB to the cortex, further activity in the MGB (and other corticofugal targets [39]) is markedly modified by feedback from the activated regions of cortex. The activati ...
TOWARDS AN "EARLY NEURAL CIRCUIT SIMULATOR": A FPGA
... Each of the roughly 30 whiskers on the rat's face has associated with it between 1500 and 2000 ganglion neurons, If our dynamical state hypothesis is correct [6], these neurons must cover (in a pair-wise manner) the full state space of [θ, dθ/dt, M, dM/dt]. This is equivalent to approximately 50,000 ...
... Each of the roughly 30 whiskers on the rat's face has associated with it between 1500 and 2000 ganglion neurons, If our dynamical state hypothesis is correct [6], these neurons must cover (in a pair-wise manner) the full state space of [θ, dθ/dt, M, dM/dt]. This is equivalent to approximately 50,000 ...
Neural Correlates of Object-Associated Choice Behavior
... Task-factor analysis and multicollinearity control. Neurons that significantly modulated their activity during the task events were further subjected to a two-way ANOVA with the object category (toy and egg) and spatial choice (left and right touch responses) as main factors. If the ANOVA showed sig ...
... Task-factor analysis and multicollinearity control. Neurons that significantly modulated their activity during the task events were further subjected to a two-way ANOVA with the object category (toy and egg) and spatial choice (left and right touch responses) as main factors. If the ANOVA showed sig ...
neural representation and the cortical code
... how a feature is encoding by a neuron from the experimenter’s point of view. The neuronal response is treated as the dependent variable, and the experimenter’s goal is to determine the neuronal response for each feature within a set. An alternative perspective is to attempt to determine the stimulus ...
... how a feature is encoding by a neuron from the experimenter’s point of view. The neuronal response is treated as the dependent variable, and the experimenter’s goal is to determine the neuronal response for each feature within a set. An alternative perspective is to attempt to determine the stimulus ...
Mechanisms to synchronize neuronal activity
... and each stimulus is represented by an assembly of neurons, how can these neurons be assigned to the dierent assemblies and the representation be read out? This problem, of decoding distributed representations of individual objects, is known as the ``binding problem'' and is currently hotly debated ...
... and each stimulus is represented by an assembly of neurons, how can these neurons be assigned to the dierent assemblies and the representation be read out? This problem, of decoding distributed representations of individual objects, is known as the ``binding problem'' and is currently hotly debated ...
Neuronal oscillations and brain wave dynamics in a LIF model
... would fire. So a 5 would be a 50% of firing, and a 9 90%. Input strings were changed to match the amount of incoming charge to the first trial, only higher to account for the fact that the input neurons were now not synchronized and so would have more trouble to reach the threshold of subsequent neu ...
... would fire. So a 5 would be a 50% of firing, and a 9 90%. Input strings were changed to match the amount of incoming charge to the first trial, only higher to account for the fact that the input neurons were now not synchronized and so would have more trouble to reach the threshold of subsequent neu ...
Intermediate
... Besides ocular dominance and orientation columns, several other types of columns are also present in the visual cortex. The most fundamental of these are what might be called position columns. Neurons in V1 have small receptive fields localized at specific positions in visual space. Moving verticall ...
... Besides ocular dominance and orientation columns, several other types of columns are also present in the visual cortex. The most fundamental of these are what might be called position columns. Neurons in V1 have small receptive fields localized at specific positions in visual space. Moving verticall ...
Harris KD. Neural signatures of cell assembly organization. Nat Rev
... to two animals, and a sensory responsive neuron was recorded from each animal. Because there is no causal influence from one brain to the other, the response of two neurons recorded in the two brains will be independent, for any given stimulus presentation (conditional independence). Nevertheless, b ...
... to two animals, and a sensory responsive neuron was recorded from each animal. Because there is no causal influence from one brain to the other, the response of two neurons recorded in the two brains will be independent, for any given stimulus presentation (conditional independence). Nevertheless, b ...
BACOFUN_2016 Meeting Booklet - Barrel Cortex Function 2016
... Dense Statistical Connectome of Rat Barrel Cortex Daniel Udvary, Robert Egger, Vincent J. Dercksen, and Marcel Oberlaender Synaptic connectivity is one important constrain for cortical signal flow and function. Consequently, a complete synaptic connectivity map (i.e., connectome) of a cortical area ...
... Dense Statistical Connectome of Rat Barrel Cortex Daniel Udvary, Robert Egger, Vincent J. Dercksen, and Marcel Oberlaender Synaptic connectivity is one important constrain for cortical signal flow and function. Consequently, a complete synaptic connectivity map (i.e., connectome) of a cortical area ...
![arXiv:1004.1028v1 [q-bio.PE] 7 Apr 2010](http://s1.studyres.com/store/data/017319873_1-eed33fcefd6efcd08d19e93d0cb6871f-300x300.png)
arXiv:1004.1028v1 [q-bio.PE] 7 Apr 2010
... or NEEs [7, 37, 38]. We found that the NEE at the vnd locus, or NEEvnd , is conserved in Drosophila and mosquitos. As such it was present in the latest common ancestor of dipterans ∼240–270 million years ago (Mya) [39, 40], or at least >200 Mya [41]. We found that conserved “canonical” NEEs occur at ...
... or NEEs [7, 37, 38]. We found that the NEE at the vnd locus, or NEEvnd , is conserved in Drosophila and mosquitos. As such it was present in the latest common ancestor of dipterans ∼240–270 million years ago (Mya) [39, 40], or at least >200 Mya [41]. We found that conserved “canonical” NEEs occur at ...
V U Z (vzw)
... occurrence of these toxins is species-dependent. The majority of the investigated conotoxins block neuromuscular and neuronal transmission by interacting with pre- and postsynaptically located ion channels or ligand-gated ion channels (Gray et al., 1988; Oliveraet al., 1985; Oliveraet al., 1994). Th ...
... occurrence of these toxins is species-dependent. The majority of the investigated conotoxins block neuromuscular and neuronal transmission by interacting with pre- and postsynaptically located ion channels or ligand-gated ion channels (Gray et al., 1988; Oliveraet al., 1985; Oliveraet al., 1994). Th ...
Learning Through Imitation: a Biological Approach to Robotics
... but also when they observe the same actions executed by another monkey or even by a human demonstrator. These types of neurons have been termed “mirror neurons” to underlie their capacity to respond to the actions of others as if they were made by one self. Neurons with the same mirroring properties ...
... but also when they observe the same actions executed by another monkey or even by a human demonstrator. These types of neurons have been termed “mirror neurons” to underlie their capacity to respond to the actions of others as if they were made by one self. Neurons with the same mirroring properties ...
Recounting the impact of Hubel and Wiesel
... lack of knowledge about the neuronal processing beyond the retina that might underlie that perception. Possibly the largest group specifically interested in perception were psychologists who had accumulated a large number of observations about behaviour, many of whom were searching for an understand ...
... lack of knowledge about the neuronal processing beyond the retina that might underlie that perception. Possibly the largest group specifically interested in perception were psychologists who had accumulated a large number of observations about behaviour, many of whom were searching for an understand ...
Modelling Cerebellar Function in Saccadic Adaptation
... • Same basic circuit repeated many times (hence “neuronal machine”) • Important: half the cells in the entire brain are in the cerebellum ...
... • Same basic circuit repeated many times (hence “neuronal machine”) • Important: half the cells in the entire brain are in the cerebellum ...
Emotion and decision-making explained: A prEcis
... (f) Another design principle is that the outputs of the reward and punishment value systems must be treated by the action system as being the goals for action. The action systems must be built to try to maximize the activation of the representations produced by rewarding events, and to minimize the ...
... (f) Another design principle is that the outputs of the reward and punishment value systems must be treated by the action system as being the goals for action. The action systems must be built to try to maximize the activation of the representations produced by rewarding events, and to minimize the ...
Brain Receptor Imaging - Society of Nuclear Medicine
... (1). Receptors can be characterized by their affinity and density; as proteins, they are degraded after a functional period by specific proteases. The function of receptors is obvious in direct neurotransmission, where the interaction of a presynaptically released transmitter with the postsynaptic r ...
... (1). Receptors can be characterized by their affinity and density; as proteins, they are degraded after a functional period by specific proteases. The function of receptors is obvious in direct neurotransmission, where the interaction of a presynaptically released transmitter with the postsynaptic r ...
Role of Feedforward and Feedback Projections in Figure
... reflected by the fact that the majority of neurons in the primary visual cortex are sensitive to such contextual influences from surrounding regions. Surrounding stimuli outside the classical receptive field do not activate the cell but modulate the response to the stimulus that falls within it. Thi ...
... reflected by the fact that the majority of neurons in the primary visual cortex are sensitive to such contextual influences from surrounding regions. Surrounding stimuli outside the classical receptive field do not activate the cell but modulate the response to the stimulus that falls within it. Thi ...
reviews - Center for Complex Systems and Brain Sciences
... site of recording30, or is anaesthetized31. In addition, several psychophysical studies, as well as introspection, indicate that we are not blind to the world outside the focus of attention. Thus we can make simple judgments on objects to which we are not attending32, although those judgments are li ...
... site of recording30, or is anaesthetized31. In addition, several psychophysical studies, as well as introspection, indicate that we are not blind to the world outside the focus of attention. Thus we can make simple judgments on objects to which we are not attending32, although those judgments are li ...
A Biologically Inspired Visuo-Motor Control Model based on a Deflationary
... another individual (observed-GO action). Because of their characteristic activation, these neurons have been called mirror neurons (Fadiga et al. 2000; Gallese et al. 1996; Rizzolatti et al. 1996; Rizzolatti et al. 2001). Hence, the AIP, PF ⇔ F5 circuit is often called Mirror System (MSys). The expr ...
... another individual (observed-GO action). Because of their characteristic activation, these neurons have been called mirror neurons (Fadiga et al. 2000; Gallese et al. 1996; Rizzolatti et al. 1996; Rizzolatti et al. 2001). Hence, the AIP, PF ⇔ F5 circuit is often called Mirror System (MSys). The expr ...