Spatial and Temporal Structure of Receptive Fields in Primate
... orientation, and elongation of the excitatory (a . 0) or inhibitory (a , 0) component represented by the Gaussian f unction. Each component is delayed with respect to skin stimulation, and therefore the effect of each component is displaced from its true center by an amount and direction that is pro ...
... orientation, and elongation of the excitatory (a . 0) or inhibitory (a , 0) component represented by the Gaussian f unction. Each component is delayed with respect to skin stimulation, and therefore the effect of each component is displaced from its true center by an amount and direction that is pro ...
Effect of Adrenalectomy on Miniature Inhibitory Postsynaptic
... with either Lucifer yellow (4 mg/ml; Molecular Probes, Leiden, The Netherlands) or Alexa Hydrozin 488 (1.75 mM; Molecular Probes). Series resistance and capacitance were monitored during the whole recording using pCLAMP7(Axon Instruments). Recordings with an uncompensated series resistance of less t ...
... with either Lucifer yellow (4 mg/ml; Molecular Probes, Leiden, The Netherlands) or Alexa Hydrozin 488 (1.75 mM; Molecular Probes). Series resistance and capacitance were monitored during the whole recording using pCLAMP7(Axon Instruments). Recordings with an uncompensated series resistance of less t ...
A computational model of action selection in the basal ganglia. I. A
... central nervous system. The overall activity level of the neural representation of a given action may determine its salience or propensity to be selected for execution, as proposed by Koechlin and Burnod (1996). Rather than dealing directly with the neural codes for each action, we propose that the ...
... central nervous system. The overall activity level of the neural representation of a given action may determine its salience or propensity to be selected for execution, as proposed by Koechlin and Burnod (1996). Rather than dealing directly with the neural codes for each action, we propose that the ...
Control of breathing by interacting pontine and
... involving in the homeodynamic control of breathing, cardiovascular function, and different types of motor behaviors coordinated with breathing, such as coughing (see Loewy and Spyer, 1990, for review). The NTS is the major integrative site of these afferent inputs. The present study focuses on the m ...
... involving in the homeodynamic control of breathing, cardiovascular function, and different types of motor behaviors coordinated with breathing, such as coughing (see Loewy and Spyer, 1990, for review). The NTS is the major integrative site of these afferent inputs. The present study focuses on the m ...
Functional Properties of Corticotectal Neurons in the Monkey`s
... had some form of activity that preceded visually guided saccadic eye movements, including a range of neuron activity from purely visual to purely movement related. It is clear there are signals in the frontal eye field that could drive saccadic eye movements and neural pathways by which these signal ...
... had some form of activity that preceded visually guided saccadic eye movements, including a range of neuron activity from purely visual to purely movement related. It is clear there are signals in the frontal eye field that could drive saccadic eye movements and neural pathways by which these signal ...
Synchronisation hubs in the visual cortex may arise from strong
... The software for visual stimulation was a commercially available stimulation tool, ActiveSTIM (\www.ActiveSTIM.com). All receptive fields were determined by manually mapping with high-contrast white bars on a black background. Because of the spatial proximity of the electrode contacts, the receptive ...
... The software for visual stimulation was a commercially available stimulation tool, ActiveSTIM (\www.ActiveSTIM.com). All receptive fields were determined by manually mapping with high-contrast white bars on a black background. Because of the spatial proximity of the electrode contacts, the receptive ...
Information Processing in the Rostral Solitary Nucleus: Modulation
... recapitulate the response specificity observed in the rNST in vivo, and that presynaptic inhibition, postsynaptic inhibition, and inhibition by a broadly tuned inhibitory interneuron all function to improve the specificity of the modeled response to gustatory ...
... recapitulate the response specificity observed in the rNST in vivo, and that presynaptic inhibition, postsynaptic inhibition, and inhibition by a broadly tuned inhibitory interneuron all function to improve the specificity of the modeled response to gustatory ...
Rostral Fastigial Nucleus Activity in the Alert Monkey During Three
... movements from rostral FN. Seated monkeys were rotated sinusoidally around a horizontal earth-fixed axis (vertical stimulation) at different orientations 157 apart (including roll, pitch, vertical canal plane and intermediate planes). In addition, sinusoidal rotations around an earth-vertical axis ( ...
... movements from rostral FN. Seated monkeys were rotated sinusoidally around a horizontal earth-fixed axis (vertical stimulation) at different orientations 157 apart (including roll, pitch, vertical canal plane and intermediate planes). In addition, sinusoidal rotations around an earth-vertical axis ( ...
Sound processing by local neural populations in the
... until recently, this has been technically impossible to do in vivo, because electrophysiological recording techniques cannot densely probe neurons at this spatial resolution, while optical techniques to monitor neural physiology have been limited to use at the surface of the tissue. Recently, this h ...
... until recently, this has been technically impossible to do in vivo, because electrophysiological recording techniques cannot densely probe neurons at this spatial resolution, while optical techniques to monitor neural physiology have been limited to use at the surface of the tissue. Recently, this h ...
Separating value from choice: delay discounting activity in the lateral
... The mathematical formulations used to study the neurophysiological signals governing choice behavior fall under one of two major theoretical frameworks: “choice probability” or “subjective value.” These two formulations represent behavioral quantities closely tied to the decision process, but it is ...
... The mathematical formulations used to study the neurophysiological signals governing choice behavior fall under one of two major theoretical frameworks: “choice probability” or “subjective value.” These two formulations represent behavioral quantities closely tied to the decision process, but it is ...
Review Early Steps in the Development of the Forebrain
... Figure 1. Organization of the Rostral Neural Plate and Forebrain in Embryonic Zebrafish (A and B) Cartoons of the rostral neural plate of a zebrafish embryo with anterior to the left. The approximate locations of cells destined to give rise to various territories are shown in different colors. The t ...
... Figure 1. Organization of the Rostral Neural Plate and Forebrain in Embryonic Zebrafish (A and B) Cartoons of the rostral neural plate of a zebrafish embryo with anterior to the left. The approximate locations of cells destined to give rise to various territories are shown in different colors. The t ...
Rhythms for Cognition: Communication through
... communication, the communicating brain areas have specialized neuronal groups, i.e. a given brain area has neurons receiving inputs and different neurons sending outputs (Felleman and Van Essen, 1991; Markov et al., 2014). Thus, the new CTC takes anatomical data on inter-areal projections more close ...
... communication, the communicating brain areas have specialized neuronal groups, i.e. a given brain area has neurons receiving inputs and different neurons sending outputs (Felleman and Van Essen, 1991; Markov et al., 2014). Thus, the new CTC takes anatomical data on inter-areal projections more close ...
Functional Properties of Parietal Visual Neurons: Mechanisms of
... Testing and identification of neurons. Once the action potential of a cortical neuron was isolated and recording appeared stable, a test run was begun. It consisted of visual stimuli moving in randomly sequenced trials in each of 8 directions at 60” or 90Vsec along meridians 100” long, evenly distri ...
... Testing and identification of neurons. Once the action potential of a cortical neuron was isolated and recording appeared stable, a test run was begun. It consisted of visual stimuli moving in randomly sequenced trials in each of 8 directions at 60” or 90Vsec along meridians 100” long, evenly distri ...
Computational Intelligence in Intrusion Detection System
... Many research efforts have been focused on how to construct affection and accurate intrusion detection models.A variety of computational intelligence techniques have been proposed in the literature including fuzzy logic [8], neural networks [9] and support vector machines (SVM) [8, 10]. In particula ...
... Many research efforts have been focused on how to construct affection and accurate intrusion detection models.A variety of computational intelligence techniques have been proposed in the literature including fuzzy logic [8], neural networks [9] and support vector machines (SVM) [8, 10]. In particula ...
Vagal Input to Lateral Area 3a in Cat Cortex
... the first time (Siegfried 1961), others (Aubert 1970; Aubert and Legros 1971; Korn and Masson 1963; Massion et al. 1966) clearly differentiated the evoked potential in the lateral sigmoid gyrus, at the lateral extent of sensorimotor cortex, from the evoked potential focus in the orbital gyrus, which ...
... the first time (Siegfried 1961), others (Aubert 1970; Aubert and Legros 1971; Korn and Masson 1963; Massion et al. 1966) clearly differentiated the evoked potential in the lateral sigmoid gyrus, at the lateral extent of sensorimotor cortex, from the evoked potential focus in the orbital gyrus, which ...
Axonal morphometry of hippocampal pyramidal neurons semi
... proportion of dendrites far outweighs that of axons (even if incomplete). To alleviate this problem, we recently devised a reconstruction technique combining 2D tracing with an algorithmic approach. Similar hybrid methodologies had been only previously applied to dendritic trees (Wolf et al. 1995). ...
... proportion of dendrites far outweighs that of axons (even if incomplete). To alleviate this problem, we recently devised a reconstruction technique combining 2D tracing with an algorithmic approach. Similar hybrid methodologies had been only previously applied to dendritic trees (Wolf et al. 1995). ...
Articles in PresS. J Neurophysiol (March 20, 2003). 10.1152/jn
... account for the characteristic nonlinear voltage dependence of the outward current measured in spiny neurons. We recognize that the si K+ current is likely to arise from at least two channel types, but for the sake of simplicity we have treated it as a single conductance. This combined outward curre ...
... account for the characteristic nonlinear voltage dependence of the outward current measured in spiny neurons. We recognize that the si K+ current is likely to arise from at least two channel types, but for the sake of simplicity we have treated it as a single conductance. This combined outward curre ...
How Inhibition Shapes Cortical Activity
... 2007; Stokes and Isaacson, 2010; Yoshimura and Callaway, 2005). Thus, not only are GABAergic interneurons excited in proportion to the level of local network activity, but they directly influence it through their inhibitory feedback. This simple connectivity pattern is ubiquitous in cortex and forms ...
... 2007; Stokes and Isaacson, 2010; Yoshimura and Callaway, 2005). Thus, not only are GABAergic interneurons excited in proportion to the level of local network activity, but they directly influence it through their inhibitory feedback. This simple connectivity pattern is ubiquitous in cortex and forms ...
Afferents of dopamine neurons
... Bolam, Francis and Henderson (1991) Neuroscience 41:483-494 Ross, Mena-Segovia, Magill and Bolam unpublished ...
... Bolam, Francis and Henderson (1991) Neuroscience 41:483-494 Ross, Mena-Segovia, Magill and Bolam unpublished ...
Dissociated functional significance of decision
... Because muscimol inactivations require comparisons across relatively long time scales, it remains logically possible that LIP normally plays a critical role in decision making, given that other areas are processing information in parallel and are able to quickly compensate when it is artificially in ...
... Because muscimol inactivations require comparisons across relatively long time scales, it remains logically possible that LIP normally plays a critical role in decision making, given that other areas are processing information in parallel and are able to quickly compensate when it is artificially in ...
Jesús Pujol Martí Neural map organization and development in the lateral-line system
... functionally complex, mediating contrasting behaviours that are also present in the adult fish. A decade ago, Ghysen‟s research group showed that the lateralis (lateral-line) sensory neurons display a topographic neural map. The same group shed some light on when and how this map is established. Sin ...
... functionally complex, mediating contrasting behaviours that are also present in the adult fish. A decade ago, Ghysen‟s research group showed that the lateralis (lateral-line) sensory neurons display a topographic neural map. The same group shed some light on when and how this map is established. Sin ...
14. Development and Plasticity
... from climbing fibers through many hundreds or thousands of synapses. In contrast, the model as shown in (C) that utilizes specific input to a presynaptic terminal as is known to exist in invertebrate systems, would have to supply the UCS to all synapses simultaneously in order to achieve the same ki ...
... from climbing fibers through many hundreds or thousands of synapses. In contrast, the model as shown in (C) that utilizes specific input to a presynaptic terminal as is known to exist in invertebrate systems, would have to supply the UCS to all synapses simultaneously in order to achieve the same ki ...
Subthalamic Stimulation-Induced Synaptic Responses in Substantia
... neurons reversed at approximately 231 mV, intermediate between the expected reversal potential for an excitatory and an inhibitory postsynaptic potential (EPSP and IPSP). Blockade of GABAA receptors with bicuculline caused a positive shift in the reversal potential to near 0 mV, suggesting that STN ...
... neurons reversed at approximately 231 mV, intermediate between the expected reversal potential for an excitatory and an inhibitory postsynaptic potential (EPSP and IPSP). Blockade of GABAA receptors with bicuculline caused a positive shift in the reversal potential to near 0 mV, suggesting that STN ...
14. Development and Plasticity
... from climbing fibers through many hundreds or thousands of synapses. In contrast, the model as shown in (C) that utilizes specific input to a presynaptic terminal as is known to exist in invertebrate systems, would have to supply the UCS to all synapses simultaneously in order to achieve the same ki ...
... from climbing fibers through many hundreds or thousands of synapses. In contrast, the model as shown in (C) that utilizes specific input to a presynaptic terminal as is known to exist in invertebrate systems, would have to supply the UCS to all synapses simultaneously in order to achieve the same ki ...
Neural Encoding I: Firing Rates and Spike Statistics
... Characterizing the relationship between stimulus and response is difficult because neuronal responses are complex and variable. Neurons typically respond by producing complex spike sequences that reflect both the intrinsic dynamics of the neuron and the temporal characteristics of the stimulus. Isol ...
... Characterizing the relationship between stimulus and response is difficult because neuronal responses are complex and variable. Neurons typically respond by producing complex spike sequences that reflect both the intrinsic dynamics of the neuron and the temporal characteristics of the stimulus. Isol ...