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 ...
Fluctuations in Perceptual Decisions Panagiota Theodoni
... Logothetis 2013). We could, therefore, study with rigorous scientific ...
... Logothetis 2013). We could, therefore, study with rigorous scientific ...
Modulation of Inhibitory Synaptic Potentials in the Piriform Cortex
... In these equations, W represents the average strength of excitatory synapses arising from cortical pyramidal cells and synapsing on other excitatory neurons. If neuronal output is in spikes/ms, then synaptic strength reflects the change in membrane voltage per spike (mV/ spike) because of the membra ...
... In these equations, W represents the average strength of excitatory synapses arising from cortical pyramidal cells and synapsing on other excitatory neurons. If neuronal output is in spikes/ms, then synaptic strength reflects the change in membrane voltage per spike (mV/ spike) because of the membra ...
Neurons in red nucleus and primary motor cortex exhibit similar
... Primary motor cortex (M1) and red nucleus (RN) are brain regions involved in limb motor control. Both structures are highly interconnected with the cerebellum and project directly to the spinal cord, although the contribution of RN is smaller than M1. It remains uncertain whether RN and M1 serve sim ...
... Primary motor cortex (M1) and red nucleus (RN) are brain regions involved in limb motor control. Both structures are highly interconnected with the cerebellum and project directly to the spinal cord, although the contribution of RN is smaller than M1. It remains uncertain whether RN and M1 serve sim ...
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... mainly because of a lack of knowledge about how representations fully autonomously emerge inside the closed brain skull, using information from the exposed two ends (the sensory end and the motor end). As reviewed here, this situation is changing. A fundamental challenge for emergent models is abstr ...
... mainly because of a lack of knowledge about how representations fully autonomously emerge inside the closed brain skull, using information from the exposed two ends (the sensory end and the motor end). As reviewed here, this situation is changing. A fundamental challenge for emergent models is abstr ...
Brain Research, 178 (1979) 363-380 363 © Elsevier/North
... Both the anterior and dorsal regions with larger receptive fields were cytoarchitectonically distinguishable from the remainder of IT. In the anterior region the cortex loses the columnar appearance of the rest of IT, layer 4 becomes thinner, the infragranular layers become thicker, and there is a l ...
... Both the anterior and dorsal regions with larger receptive fields were cytoarchitectonically distinguishable from the remainder of IT. In the anterior region the cortex loses the columnar appearance of the rest of IT, layer 4 becomes thinner, the infragranular layers become thicker, and there is a l ...
Reference frames for representing the location of visual and tactile
... visual space. The analysis presented above suggests that this hypothesis is unlikely to hold for all neurons and for all eye positions. Indeed, bimodal cells showed the same broad distribution of visual RF types, from head- to eye-centered encoding, as the general population of VIP cells (Fig. 3). T ...
... visual space. The analysis presented above suggests that this hypothesis is unlikely to hold for all neurons and for all eye positions. Indeed, bimodal cells showed the same broad distribution of visual RF types, from head- to eye-centered encoding, as the general population of VIP cells (Fig. 3). T ...
Understanding Circuit Dynamics Using the Stomatogastric Nervous
... Recent years have seen a rebirth of interest in understanding how neural circuits generate behavior. Therefore, it is a particularly good time to review and critically examine what we know about the stomatogastric nervous system (STNS), one of the premier systems for analyzing how circuit dynamics a ...
... Recent years have seen a rebirth of interest in understanding how neural circuits generate behavior. Therefore, it is a particularly good time to review and critically examine what we know about the stomatogastric nervous system (STNS), one of the premier systems for analyzing how circuit dynamics a ...
Self-Organizing Visual Cortex Model using Homeostatic Plasticity
... An automatic threshold adaptation is one of the desirable extensions to the LISSOM model for enhancing its reliability and making it more relevant biologically [19, chapter 17]. In current LISSOM model, activation thresholds (the upper and lower bound of neuron’s activation function) should be tuned ...
... An automatic threshold adaptation is one of the desirable extensions to the LISSOM model for enhancing its reliability and making it more relevant biologically [19, chapter 17]. In current LISSOM model, activation thresholds (the upper and lower bound of neuron’s activation function) should be tuned ...
Direction of action is represented in the ventral premotor cortex
... There has been considerable interest in using signals from the central nervous system to drive prosthetic devices and/or robotic arms28 (S. I. Helms-Tillery et al. Soc. Neurosci. Abstr. 26, 458.2, 2000). In most instances, investigators have found that signals from single neurons do not provide enou ...
... There has been considerable interest in using signals from the central nervous system to drive prosthetic devices and/or robotic arms28 (S. I. Helms-Tillery et al. Soc. Neurosci. Abstr. 26, 458.2, 2000). In most instances, investigators have found that signals from single neurons do not provide enou ...
Ventral Intraparietal Area of the Macaque: Anatomic Location and
... which a stimulus was presented, preferring a stimulus of equivalent visual angle and luminance presented near (within 20 cm) or very near (within 5 cm) the face. These neurons maintained their preference for near stimuli when tested monocularly, suggesting that visual cues other than disparity can s ...
... which a stimulus was presented, preferring a stimulus of equivalent visual angle and luminance presented near (within 20 cm) or very near (within 5 cm) the face. These neurons maintained their preference for near stimuli when tested monocularly, suggesting that visual cues other than disparity can s ...
Weber et al. - 2000
... Figure 2 shows examples of the cellular organization of the normal primate LGN (Fig. 2A) and after different periods of elevated IOP (Figs, 2B, 2C, 2D). The sections are presented in the coronal plane, with the nasal region of the nucleus to the left. The two ventral layers (Fig. 2A, layers 1, 2) ar ...
... Figure 2 shows examples of the cellular organization of the normal primate LGN (Fig. 2A) and after different periods of elevated IOP (Figs, 2B, 2C, 2D). The sections are presented in the coronal plane, with the nasal region of the nucleus to the left. The two ventral layers (Fig. 2A, layers 1, 2) ar ...
Epileptiform Activity Can Be Initiated in Various Neocortical Layers
... true of neocortical slices from randomly chosen regions including frontal, temporal, and occipital areas. This result indicates that initiation sites for generating epileptiform activity can be formed spontaneously regardless of the region of cortex. The initiation site in each stained cortical slic ...
... true of neocortical slices from randomly chosen regions including frontal, temporal, and occipital areas. This result indicates that initiation sites for generating epileptiform activity can be formed spontaneously regardless of the region of cortex. The initiation site in each stained cortical slic ...
Diversity and wiring variability of visual local neurons in the
... The Drosophila optic lobe contains four neuropils, each representing a different stage of visual processing: the lamina, medulla, lobula, and lobula plate (Morante and Desplan, 2004). Starting with the compound eye, visual signals are transmitted through a twodimensional array of modular longitudina ...
... The Drosophila optic lobe contains four neuropils, each representing a different stage of visual processing: the lamina, medulla, lobula, and lobula plate (Morante and Desplan, 2004). Starting with the compound eye, visual signals are transmitted through a twodimensional array of modular longitudina ...
Neuronal representation of visual motion and orientation in the fly
... terminate in the lamina, R7/R8 bypass the lamina and terminate in the medulla (Meinertzhagen and O’Neil, 1991). These two neuropils contain arrays of retinotopically arranged modules, the lamina cartridges and the medulla columns. Each of these modules receives primarily input from a single retinal ...
... terminate in the lamina, R7/R8 bypass the lamina and terminate in the medulla (Meinertzhagen and O’Neil, 1991). These two neuropils contain arrays of retinotopically arranged modules, the lamina cartridges and the medulla columns. Each of these modules receives primarily input from a single retinal ...
NEOCORTEX
... primates have the largest brains in proportion to their body weight. However, the human brain is three times as large as might be expected for a primate of equivalent weight (Passingham,1982). Furthermore, the human brain is not simply a scaled-up version of our closest primate relatives, i.e., the ...
... primates have the largest brains in proportion to their body weight. However, the human brain is three times as large as might be expected for a primate of equivalent weight (Passingham,1982). Furthermore, the human brain is not simply a scaled-up version of our closest primate relatives, i.e., the ...
A Stochastic Algorithm for Feature Selection in Pattern Recognition
... challenge when the set of variables has no specific order and when the search must be done over its subsets since many problems related to feature extraction have been shown to be NP-hard (Blum and Rivest, 1992). Therefore, automatic feature space construction and variable selection from a large set ...
... challenge when the set of variables has no specific order and when the search must be done over its subsets since many problems related to feature extraction have been shown to be NP-hard (Blum and Rivest, 1992). Therefore, automatic feature space construction and variable selection from a large set ...
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... and electrophysiological subtypes also populate the neocortex with certain layer preferences, thus contributing to layer differences in local circuits (Markram et al., 2004; Miyoshi et al., 2007; Miyoshi and Fishell, 2011). Although this review is focused on the layered horizontal organization of th ...
... and electrophysiological subtypes also populate the neocortex with certain layer preferences, thus contributing to layer differences in local circuits (Markram et al., 2004; Miyoshi et al., 2007; Miyoshi and Fishell, 2011). Although this review is focused on the layered horizontal organization of th ...
The Involvement of Recurrent Connections in Area CA3 in
... the CA3 recurrent network and successfully accounts for some of ...
... the CA3 recurrent network and successfully accounts for some of ...
Total Wiring Length Minimization of C. elegans Neural
... using materials from [1] and new electron micrographs reported an updated set of data on electrical and chemical connections of the hermaphrodite worm. Although [3] was published in 2011, this updated connectivity dataset had been obtained before, and employed for example, in [4]. This refined datas ...
... using materials from [1] and new electron micrographs reported an updated set of data on electrical and chemical connections of the hermaphrodite worm. Although [3] was published in 2011, this updated connectivity dataset had been obtained before, and employed for example, in [4]. This refined datas ...
Developmental mechanics of the primate cerebral cortex
... explained by the global minimization of axonal tension in corticocortical projections; (2) mechanical forces resulting from cortical folding have a significant impact on the relative and absolute thickness of cortical layers in gyri and sulci; (3) folding forces may affect the cellular migration durin ...
... explained by the global minimization of axonal tension in corticocortical projections; (2) mechanical forces resulting from cortical folding have a significant impact on the relative and absolute thickness of cortical layers in gyri and sulci; (3) folding forces may affect the cellular migration durin ...
Spatial and temporal frequency selectivity of neurons in
... components (Campbell & Robson, 1968; Glezer et al., 1973; Maffei & Fiorentini, 1973). While at one stage this may have been seen as incompatible with feature-based representations (Hubel & Wiesel, 1962, 1968), physiological and psychophysical studies have since indicated that different Fourier chann ...
... components (Campbell & Robson, 1968; Glezer et al., 1973; Maffei & Fiorentini, 1973). While at one stage this may have been seen as incompatible with feature-based representations (Hubel & Wiesel, 1962, 1968), physiological and psychophysical studies have since indicated that different Fourier chann ...
Synaptic inhibition is caused by:
... Which of the following is not true regarding a group of end bulbs which affect one post-synaptic site of another neuron: a. each causes a potential of 1mV b. they will be from endings of more than one axon c. only EPSP or IPSP types will be present d. both spatial and temporal methods will be utiliz ...
... Which of the following is not true regarding a group of end bulbs which affect one post-synaptic site of another neuron: a. each causes a potential of 1mV b. they will be from endings of more than one axon c. only EPSP or IPSP types will be present d. both spatial and temporal methods will be utiliz ...
Bayesian Network Classifiers
... of naive Bayesian classifiers by avoiding unwarranted (by the data) assumptions about independence? In order to tackle this problem effectively, we need an appropriate language and efficient machinery to represent and manipulate independence assertions. Both are provided by Bayesian networks (Pearl, ...
... of naive Bayesian classifiers by avoiding unwarranted (by the data) assumptions about independence? In order to tackle this problem effectively, we need an appropriate language and efficient machinery to represent and manipulate independence assertions. Both are provided by Bayesian networks (Pearl, ...
kwanPNAS08
... by SOX5 (L-SOX5), a transcription factor that has been shown to regulate chondrogenesis, oligodendrogenesis, and the sequential generation of cortical neurons (13–16). In this study, we show that Sox5 postmitotically controls the laminar positioning, molecular differentiation, and layer-specific pat ...
... by SOX5 (L-SOX5), a transcription factor that has been shown to regulate chondrogenesis, oligodendrogenesis, and the sequential generation of cortical neurons (13–16). In this study, we show that Sox5 postmitotically controls the laminar positioning, molecular differentiation, and layer-specific pat ...