Electrophysiological and Behavioral responses of Lucilia sericata
... Electroantennography allowed us to identify the odours that are detected by the olfactive system of Lucilia sericata by recording the electric activity of the olfactive neurons. Behavioral assays allowed us to identify and understand the behavioral reactions of Lucilia sericata when they are exposed ...
... Electroantennography allowed us to identify the odours that are detected by the olfactive system of Lucilia sericata by recording the electric activity of the olfactive neurons. Behavioral assays allowed us to identify and understand the behavioral reactions of Lucilia sericata when they are exposed ...
A Biologically Plausible Spiking Neuron Model of Fear Conditioning
... Blair, 2010). In order to replicate these findings, the R population of neurons is only excited by increases of its input. This is accomplished by a recurrent inhibition circuit which consists of the R population connected to an inhibitory population which in turn inhibits the R population. At the o ...
... Blair, 2010). In order to replicate these findings, the R population of neurons is only excited by increases of its input. This is accomplished by a recurrent inhibition circuit which consists of the R population connected to an inhibitory population which in turn inhibits the R population. At the o ...
Frequency-Dependent Processing in the Vibrissa Sensory System
... vibrissae are “whisked” at a rate between ⬃4 and 12 Hz. When whisked over a surface, multiple stimulus features on the surface (e.g., ridges in a grating) should create vibrissa vibrations at multiples of the whisking rate. As shown for this idealized surface, sweeping over 5 ridges at a rate of 8 H ...
... vibrissae are “whisked” at a rate between ⬃4 and 12 Hz. When whisked over a surface, multiple stimulus features on the surface (e.g., ridges in a grating) should create vibrissa vibrations at multiples of the whisking rate. As shown for this idealized surface, sweeping over 5 ridges at a rate of 8 H ...
Art.-Schoenbaum (R) - UCSD Cognitive Science
... Functions that require the integrity of OFC are also dependent on information provided through interconnected structures, allowing access to information regarding the context of cues and associations formed during learning through inputs from other systems. One key region, with respect to goal-direc ...
... Functions that require the integrity of OFC are also dependent on information provided through interconnected structures, allowing access to information regarding the context of cues and associations formed during learning through inputs from other systems. One key region, with respect to goal-direc ...
PDF
... preferable to an action that leads to the same outcome but with only 10% chance. What about a choice between actions that lead to different rewards? When comparing the worth of qualitatively different outcomes such as food and water, the motivational state of the animal must come into consideration ...
... preferable to an action that leads to the same outcome but with only 10% chance. What about a choice between actions that lead to different rewards? When comparing the worth of qualitatively different outcomes such as food and water, the motivational state of the animal must come into consideration ...
Human Nervous System
... • Is the space between two neurons or between a neuron and a receptor organ. ...
... • Is the space between two neurons or between a neuron and a receptor organ. ...
Brain rhythms in mental time travel
... The notion of context has many meanings in the memory literature. It can refer to the spatial environment in which an event occurs (Bjork and Richardson-Klavehn, 1989; Smith, 1988), the spatial environment during a particular temporal interval (Schacter, 1987; Tulving, 2002), the task performed whil ...
... The notion of context has many meanings in the memory literature. It can refer to the spatial environment in which an event occurs (Bjork and Richardson-Klavehn, 1989; Smith, 1988), the spatial environment during a particular temporal interval (Schacter, 1987; Tulving, 2002), the task performed whil ...
A neural basis for a false memory
... weak (65 lA) levels of NBstm that produce only a few seconds of cortical activation. The present study was initiated to determine if a higher, but still moderate, level of stimulation (100 lA) that activates the cortex would maximize the specificity of learning, that is produce the largest behavior ...
... weak (65 lA) levels of NBstm that produce only a few seconds of cortical activation. The present study was initiated to determine if a higher, but still moderate, level of stimulation (100 lA) that activates the cortex would maximize the specificity of learning, that is produce the largest behavior ...
Learning receptive fields using predictive feedback
... fields when exposed to natural images. Here, we use predictive feedback to explain tuning properties in medial superior temporal area (MST). We implement the hypothesis using a new, biologically plausible, algorithm based on matching pursuit, which retains all the features of the previous implementat ...
... fields when exposed to natural images. Here, we use predictive feedback to explain tuning properties in medial superior temporal area (MST). We implement the hypothesis using a new, biologically plausible, algorithm based on matching pursuit, which retains all the features of the previous implementat ...
Probing neural circuits in the zebrafish: a suite of optical techniques
... larval hindbrain and, when looking at labeled neurons at depth in the hindbrain, did not yield dramatically better images than the more convenient long-workingdistance objectives. ...
... larval hindbrain and, when looking at labeled neurons at depth in the hindbrain, did not yield dramatically better images than the more convenient long-workingdistance objectives. ...
IMPROVING OF ARTIFICIAL NEURAL NETWORKS
... second generation of ANN. The third generation was studied since 1930, with British scientists Alan Lloyd Hodgkin (1914-1998) y Andrew Fielding Huxley (he was born in 1917), nowadays SNN are based on this model. These authors finished their research in 1950 and their mathematical model is known as H ...
... second generation of ANN. The third generation was studied since 1930, with British scientists Alan Lloyd Hodgkin (1914-1998) y Andrew Fielding Huxley (he was born in 1917), nowadays SNN are based on this model. These authors finished their research in 1950 and their mathematical model is known as H ...
Sparse Coding in the Neocortex
... contributing to the utility of center-surround receptive field organization, along with decorrelation and response gain. Furthermore, sparse codes of natural sounds have been shown to produce temporal response profiles with properties similar to those of early auditory neurons (Lewicki, 2002). This ...
... contributing to the utility of center-surround receptive field organization, along with decorrelation and response gain. Furthermore, sparse codes of natural sounds have been shown to produce temporal response profiles with properties similar to those of early auditory neurons (Lewicki, 2002). This ...
SHORT COMMUNICATION Localization of a vocal pattern generator
... example for a significant correlation between call duration and the duration of neuronal activity is shown as a scatterplot in Fig. 2E. Neurons showing a syllable-correlated activity could be easily distinguished from neurons having no correlated activity by their clear correlation between syllable r ...
... example for a significant correlation between call duration and the duration of neuronal activity is shown as a scatterplot in Fig. 2E. Neurons showing a syllable-correlated activity could be easily distinguished from neurons having no correlated activity by their clear correlation between syllable r ...
Using Music to Tap Into a Universal Neural Grammar
... Entrainment Entrainment is the principle whereby two or more systems synchronize their rhythmic activity. It is known that the pendulums of grandfather clocks that are placed in close proximity will begin to swing in synchrony, or entrain to one another. The phenomenon of entrainment is common in b ...
... Entrainment Entrainment is the principle whereby two or more systems synchronize their rhythmic activity. It is known that the pendulums of grandfather clocks that are placed in close proximity will begin to swing in synchrony, or entrain to one another. The phenomenon of entrainment is common in b ...
intraembryonic mesoderm胚內中胚層
... 4. Notochordal canal disappears; primitive pit is now called neurenteric canal神經原腸管. The remain of notochordal process is flattened and called notochordal plate脊索板. 5. Notochordal plate infolds to form notochord脊索. 6. Notochord detaches from endoderm. Notochordal canal Endoderm ...
... 4. Notochordal canal disappears; primitive pit is now called neurenteric canal神經原腸管. The remain of notochordal process is flattened and called notochordal plate脊索板. 5. Notochordal plate infolds to form notochord脊索. 6. Notochord detaches from endoderm. Notochordal canal Endoderm ...
ALGORITHMICS - Universitatea de Vest din Timisoara
... What is this course about ? Computational Intelligence “is a branch of the study of artificial intelligence; it aims to use learning, adaptive, or evolutionary algorithms to create programs that are, in some sense, intelligent. “ ...
... What is this course about ? Computational Intelligence “is a branch of the study of artificial intelligence; it aims to use learning, adaptive, or evolutionary algorithms to create programs that are, in some sense, intelligent. “ ...
The Biological Bases of Time-to
... because these neurons respond only to the direct collision course of approaching objects (Wang & Frost, 1992, Sun & Frost, 1998), and not to simulation of the movement of pigeons toward the same stationary objects (Sun & Frost, submitted). Also the work on locust looming detectors would fit this cat ...
... because these neurons respond only to the direct collision course of approaching objects (Wang & Frost, 1992, Sun & Frost, 1998), and not to simulation of the movement of pigeons toward the same stationary objects (Sun & Frost, submitted). Also the work on locust looming detectors would fit this cat ...
Sensory uncertainty decoded from visual cortex
... Using fMRI in combination with a generative model-based analysis, we found that probability distributions reflecting sensory uncertainty could reliably be estimated from human visual cortex and, moreover, that observers appeared to use knowledge of this uncertainty in their perceptual decisions. The ...
... Using fMRI in combination with a generative model-based analysis, we found that probability distributions reflecting sensory uncertainty could reliably be estimated from human visual cortex and, moreover, that observers appeared to use knowledge of this uncertainty in their perceptual decisions. The ...
Nonmonotonic inferences in neural networks
... Thirdly, the next sections will be devoted to showing that schemata support default assumptions about the environ-ment. The neural network is thus capable of filling in missing information. There are some elementary operations on schemata that will be of interest when we consider nonmonotonic infere ...
... Thirdly, the next sections will be devoted to showing that schemata support default assumptions about the environ-ment. The neural network is thus capable of filling in missing information. There are some elementary operations on schemata that will be of interest when we consider nonmonotonic infere ...
File
... The somatic nervous system regulates body activities that are under conscious control, such as the movement of skeletal muscles. Most of the time you have control over skeletal muscle movement, but when your body is in danger the central nervous system may take over. ...
... The somatic nervous system regulates body activities that are under conscious control, such as the movement of skeletal muscles. Most of the time you have control over skeletal muscle movement, but when your body is in danger the central nervous system may take over. ...
Autonomic Nervous System
... Sympathetic system - prepares the body for intense activity. Causes an increase in blood pressure, the release of energy-rich sugar into the blood, and the shutting down of activities not related to the body’s preparation to “fight or flee” in response to stress. ...
... Sympathetic system - prepares the body for intense activity. Causes an increase in blood pressure, the release of energy-rich sugar into the blood, and the shutting down of activities not related to the body’s preparation to “fight or flee” in response to stress. ...
Nervous System
... Increase of heart rate, force of contraction & BP Decrease in blood flow to nonessential organs Increase in blood flow to skeletal & cardiac muscle ...
... Increase of heart rate, force of contraction & BP Decrease in blood flow to nonessential organs Increase in blood flow to skeletal & cardiac muscle ...
Multiarray silicon probes with integrated optical fibers
... Recordings of large neuronal ensembles and neural stimulation of high spatial and temporal precision are important requisites for studying the real-time dynamics of neural networks. Multiple-shank silicon probes enable large-scale monitoring of individual neurons. Optical stimulation of genetically ...
... Recordings of large neuronal ensembles and neural stimulation of high spatial and temporal precision are important requisites for studying the real-time dynamics of neural networks. Multiple-shank silicon probes enable large-scale monitoring of individual neurons. Optical stimulation of genetically ...
Neurophysiological investigation of the basis of the fMRI signal
... exact relationship between the measured fMRI signal and the underlying neural activity is unclear. Here we present simultaneous intracortical recordings of neural signals and fMRI responses. We compared local ®eld potentials (LFPs), single- and multi-unit spiking activity with highly spatio-temporal ...
... exact relationship between the measured fMRI signal and the underlying neural activity is unclear. Here we present simultaneous intracortical recordings of neural signals and fMRI responses. We compared local ®eld potentials (LFPs), single- and multi-unit spiking activity with highly spatio-temporal ...
Neuroethology
Neuroethology is the evolutionary and comparative approach to the study of animal behavior and its underlying mechanistic control by the nervous system. This interdisciplinary branch of behavioral neuroscience endeavors to understand how the central nervous system translates biologically relevant stimuli into natural behavior. For example, many bats are capable of echolocation which is used for prey capture and navigation. The auditory system of bats is often cited as an example for how acoustic properties of sounds can be converted into a sensory map of behaviorally relevant features of sounds. Neuroethologists hope to uncover general principles of the nervous system from the study of animals with exaggerated or specialized behaviors.As its name implies, neuroethology is a multidisciplinary field composed of neurobiology (the study of the nervous system) and ethology (the study of behavior in natural conditions). A central theme of the field of neuroethology, delineating it from other branches of neuroscience, is this focus on natural behavior. Natural behaviors may be thought of as those behaviors generated through means of natural selection (i.e. finding mates, navigation, locomotion, predator avoidance) rather than behaviors in disease states, or behavioral tasks that are particular to the laboratory.