Matching tutor to student: rules and mechanisms for
... We considered a model for information transfer that is composed of three sub-circuits: a conductor, a student, and a tutor (see Fig. 1B). The conductor provides input to the student in the form of temporally precise patterns. The goal of learning is for the student to convert this input to a predefi ...
... We considered a model for information transfer that is composed of three sub-circuits: a conductor, a student, and a tutor (see Fig. 1B). The conductor provides input to the student in the form of temporally precise patterns. The goal of learning is for the student to convert this input to a predefi ...
Amo, Neuron, 2014
... activated to negative or aversive emotional events or by situations where the outcome does not match the initial expectation, suggesting a role in transmitting antireward and aversive information (Matsumoto and Hikosaka, 2007, 2009). LHb neurons are connected to GABAergic neurons in the rostromedial ...
... activated to negative or aversive emotional events or by situations where the outcome does not match the initial expectation, suggesting a role in transmitting antireward and aversive information (Matsumoto and Hikosaka, 2007, 2009). LHb neurons are connected to GABAergic neurons in the rostromedial ...
Transfer Learning using Computational Intelligence
... 2) Self-labeling methods which include unlabeled target domain samples in the training process and initialize their labels and then iteratively refine the labels. Self-training has a close relationship with the Expectation Maximization (EM) algorithm, which has hard and soft versions. The hard versi ...
... 2) Self-labeling methods which include unlabeled target domain samples in the training process and initialize their labels and then iteratively refine the labels. Self-training has a close relationship with the Expectation Maximization (EM) algorithm, which has hard and soft versions. The hard versi ...
A population density approach that facilitates slow inhibitory synapses
... for cortical neurons, and this difference can have a profound effect on network dynamics that cannot be captured with neurons having only fast synapses. We thus extend the model to include slow inhibitory synapses. In this model, neurons are grouped into large populations of similar neurons. For eac ...
... for cortical neurons, and this difference can have a profound effect on network dynamics that cannot be captured with neurons having only fast synapses. We thus extend the model to include slow inhibitory synapses. In this model, neurons are grouped into large populations of similar neurons. For eac ...
Inhibitory Plasticity Balances Excitation and Inhibition in Sensory
... T. P. Vogels,1*† H. Sprekeler,1* F. Zenke,1 C. Clopath,1,2 W. Gerstner1 Cortical neurons receive balanced excitatory and inhibitory synaptic currents. Such a balance could be established and maintained in an experience-dependent manner by synaptic plasticity at inhibitory synapses. We show that this ...
... T. P. Vogels,1*† H. Sprekeler,1* F. Zenke,1 C. Clopath,1,2 W. Gerstner1 Cortical neurons receive balanced excitatory and inhibitory synaptic currents. Such a balance could be established and maintained in an experience-dependent manner by synaptic plasticity at inhibitory synapses. We show that this ...
working draft - DAVID KAPLAN | Macquarie University
... autonomy several decades when boldly pronouncing that “[t]he mind can be studied independently from the brain. Psychology (the study of the programs) can be pursued independently from neurophysiology (the study of the machine and the machine code)” (Johnson-Laird 1983, 9). It is important to keep t ...
... autonomy several decades when boldly pronouncing that “[t]he mind can be studied independently from the brain. Psychology (the study of the programs) can be pursued independently from neurophysiology (the study of the machine and the machine code)” (Johnson-Laird 1983, 9). It is important to keep t ...
I Know What You Are Doing: A - Università degli Studi di Parma
... reaching movement toward a bookshelf, he/she will have little doubt that the person in question is going to pick up a book, even if the book is not visible. Full visual information about an action is not necessary to recognize its goal. Action understanding could be based on a mechanism that can tri ...
... reaching movement toward a bookshelf, he/she will have little doubt that the person in question is going to pick up a book, even if the book is not visible. Full visual information about an action is not necessary to recognize its goal. Action understanding could be based on a mechanism that can tri ...
Burst Firing and Modulation of Functional Connectivity in Cat Striate
... (bursts) and stimulus orientation. They showed that with stimuli at optimal orientations, proportionally more spikes were contained in bursts than were found with stimuli at nonoptimal orientations. Debusk et al. (1997) confirmed and extended these results. The reduction of spikes in bursts with non ...
... (bursts) and stimulus orientation. They showed that with stimuli at optimal orientations, proportionally more spikes were contained in bursts than were found with stimuli at nonoptimal orientations. Debusk et al. (1997) confirmed and extended these results. The reduction of spikes in bursts with non ...
computational modeling of observational learning - FORTH-ICS
... our ability to learn during observation. Motor mental images include a representation of the body of the demonstrator, rather than just the consequences of its actions (Jeannerod, 1994), indicating that perception is embodied and modal. For this reason, motor imagery has bee ...
... our ability to learn during observation. Motor mental images include a representation of the body of the demonstrator, rather than just the consequences of its actions (Jeannerod, 1994), indicating that perception is embodied and modal. For this reason, motor imagery has bee ...
A Review of Cell Assemblies by Huyck and
... laminar architecture, that is roughly a metre square sheet, with six thin layers (Raizada and Grossberg, 2003). This paper mostly considers cortical CAs (but see Section 3.1.4). Neuroscientists have divided the cortex into areas (e.g. Brodmann areas), and when there ...
... laminar architecture, that is roughly a metre square sheet, with six thin layers (Raizada and Grossberg, 2003). This paper mostly considers cortical CAs (but see Section 3.1.4). Neuroscientists have divided the cortex into areas (e.g. Brodmann areas), and when there ...
Neurons in Anterior Cingulate Cortex Multiplex
... of the targets [the low value (LV) targets] turned red. The other one [the gyral, ACC (Rudebeck et al., 2006a)], and rostral to the cingulate motor high value (HV) target] turned one of six colors: dark gray, light gray, areas (Shima et al., 1991; Shima and Tanji, 1998). Additional details on orange ...
... of the targets [the low value (LV) targets] turned red. The other one [the gyral, ACC (Rudebeck et al., 2006a)], and rostral to the cingulate motor high value (HV) target] turned one of six colors: dark gray, light gray, areas (Shima et al., 1991; Shima and Tanji, 1998). Additional details on orange ...
Basal Ganglia: Internal Organization
... substantia nigra pars compacta (SNc). The two major inputs to the basal ganglia are from the cortex and the thalamus (mainly the intralaminar nuclei). The SNr and GPi constitute the output nuclei of the basal ganglia. The basal ganglia influence behavior by the output nuclei (SNr/GPi) projecting to ...
... substantia nigra pars compacta (SNc). The two major inputs to the basal ganglia are from the cortex and the thalamus (mainly the intralaminar nuclei). The SNr and GPi constitute the output nuclei of the basal ganglia. The basal ganglia influence behavior by the output nuclei (SNr/GPi) projecting to ...
Hippocampal mechanisms for the context-dependent retrieval of episodes 2005 Special issue
... model (Fig. 4) was constrained by anatomical and physiological data (Amaral & Witter, 1989). As a simple overview, these subregions perform the following function (Fig. 4A). At a given location, the current place input cues the forward retrieval of all previously experienced sequences from that loca ...
... model (Fig. 4) was constrained by anatomical and physiological data (Amaral & Witter, 1989). As a simple overview, these subregions perform the following function (Fig. 4A). At a given location, the current place input cues the forward retrieval of all previously experienced sequences from that loca ...
Mechanism of Irregular Firing of Suprachiasmatic Nucleus Neurons
... The suprachiasmatic nucleus (SCN) of the hypothalamus contains the primary circadian pacemaker in mammals (Gillette and Tischkau 1999). Neuronal electrical activity recorded in the SCN shows a circadian rhythm, even after the neurons are isolated (Honma et al. 1998; Liu and Reppert 2000; Welsh et al ...
... The suprachiasmatic nucleus (SCN) of the hypothalamus contains the primary circadian pacemaker in mammals (Gillette and Tischkau 1999). Neuronal electrical activity recorded in the SCN shows a circadian rhythm, even after the neurons are isolated (Honma et al. 1998; Liu and Reppert 2000; Welsh et al ...
Neuron Production, Neuron Number, and Structure Size Are
... made. Pearson correlations were calculated for the areas of both hemispheres (n ⫽ 12). The correlation coefficients were .981 and .899. The volumes of four control regions were also determined with a SPOT Insight Color video camera and SPOT Advanced imaging software (Diagnostic Instruments, Version ...
... made. Pearson correlations were calculated for the areas of both hemispheres (n ⫽ 12). The correlation coefficients were .981 and .899. The volumes of four control regions were also determined with a SPOT Insight Color video camera and SPOT Advanced imaging software (Diagnostic Instruments, Version ...
Spatial tuning of reaching activity in the medial parieto
... (iv) M2. Inward reach movement, i.e. movement towards the memorized target outside the field of view. M1 and M2 periods of neural modulation related to arm movements towards the LED and towards the home button, respectively; both epochs could start before the onset of arm movement in case the neural ...
... (iv) M2. Inward reach movement, i.e. movement towards the memorized target outside the field of view. M1 and M2 periods of neural modulation related to arm movements towards the LED and towards the home button, respectively; both epochs could start before the onset of arm movement in case the neural ...
and Third-Order Neurons of Cockroach Ocelli
... shown that their responses contain characteristic nonlinearities. Spekreijse (1969) found that some ganglion cells of the goldfish retina exhibit half-wave rectified responses. The rectified responses have been noted in cat ganglion cells (Hochstein and Shapley, 1976; Victor, 1988), and catfish amac ...
... shown that their responses contain characteristic nonlinearities. Spekreijse (1969) found that some ganglion cells of the goldfish retina exhibit half-wave rectified responses. The rectified responses have been noted in cat ganglion cells (Hochstein and Shapley, 1976; Victor, 1988), and catfish amac ...
Superior Colliculus and Visual Spatial Attention
... node in a descending motor pathway; instead, it contains multiple classes of neurons that provide points of interconnection between many circuits serving a range of sensory, motor, and cognitive functions. ...
... node in a descending motor pathway; instead, it contains multiple classes of neurons that provide points of interconnection between many circuits serving a range of sensory, motor, and cognitive functions. ...
Neural crest cells and axonal specificity
... and become melanocytes (Kunisada et al. 1998). Therefore, the migration of neural crest cells appears to be regulated both by the extracellular matrix and by soluble factors secreted by potential destinations. As we will see later in this chapter, the movement of axonal growth cones can also be regu ...
... and become melanocytes (Kunisada et al. 1998). Therefore, the migration of neural crest cells appears to be regulated both by the extracellular matrix and by soluble factors secreted by potential destinations. As we will see later in this chapter, the movement of axonal growth cones can also be regu ...
Chronic multiunit recordings in behaving animals: advantages and
... the functioning of individual neurons. Here we will discuss a method for recording in behaving animals that uses chronically implanted micro-electrodes that allow one to track neural responses over a long period of time. In a majority of cases, multiunit activity, which is the aggregate spiking acti ...
... the functioning of individual neurons. Here we will discuss a method for recording in behaving animals that uses chronically implanted micro-electrodes that allow one to track neural responses over a long period of time. In a majority of cases, multiunit activity, which is the aggregate spiking acti ...
PDF
... dead neurons in the same penumbra. Regarding the maturation of the lesions in ischemic stroke,2 numerous studies investigating the delayed neuronal death have been performed during the past 3 decades.3– 6 In the classical neuropathology seen after cerebral ischemia, the cytoplasm of the ischemic neu ...
... dead neurons in the same penumbra. Regarding the maturation of the lesions in ischemic stroke,2 numerous studies investigating the delayed neuronal death have been performed during the past 3 decades.3– 6 In the classical neuropathology seen after cerebral ischemia, the cytoplasm of the ischemic neu ...
Full Text
... elapsed that reached statistical significance, with two cases having positive associations and two having negative associations. One case in this group did exhibit a greater rate of change than the other cases (2.1 mm/100 days). This case had a lesion involving the lateral geniculate nucleus (Fig. 5 ...
... elapsed that reached statistical significance, with two cases having positive associations and two having negative associations. One case in this group did exhibit a greater rate of change than the other cases (2.1 mm/100 days). This case had a lesion involving the lateral geniculate nucleus (Fig. 5 ...
All-Optical Interrogation of Neural Circuits
... have proceeded more or less in parallel, and it has proven very difficult to combine readout and manipulation of the same cells, and thus achieve fully “all-optical” interrogation of neural activity. Implementations of simultaneous optical readout and manipulation have faced three main challenges: r ...
... have proceeded more or less in parallel, and it has proven very difficult to combine readout and manipulation of the same cells, and thus achieve fully “all-optical” interrogation of neural activity. Implementations of simultaneous optical readout and manipulation have faced three main challenges: r ...
2015 Cosyne Program
... and theoretical/computational approaches to problems in systems neuroscience. To encourage interdisciplinary interactions, the main meeting is arranged in a single track. A set of invited talks are selected by the Executive Committee and Organizing Committee, and additional talks and posters are sel ...
... and theoretical/computational approaches to problems in systems neuroscience. To encourage interdisciplinary interactions, the main meeting is arranged in a single track. A set of invited talks are selected by the Executive Committee and Organizing Committee, and additional talks and posters are sel ...