Corticothalamic feedback and sensory processing
... Whether or not corticothalamic feedback serves a similar role in egocentric selection in the visual and somatosensory systems is an open question, however, results from recent work in the visual system may support the idea of egocentric selection [17]. Although this line of thinking is certainly sp ...
... Whether or not corticothalamic feedback serves a similar role in egocentric selection in the visual and somatosensory systems is an open question, however, results from recent work in the visual system may support the idea of egocentric selection [17]. Although this line of thinking is certainly sp ...
Proceedings from the 2015 UK-Korea Neuroscience Symposium
... mapping large-scale connectivity patterns at multiple scales: microscale for synapse-by-synapse or neuron-by-neuron analysis; and meso-scale for revealing local circuits. We performed a comprehensive fine-scale circuit mapping of hippocampal regions using the mGRASP. This mapping revealed spatially ...
... mapping large-scale connectivity patterns at multiple scales: microscale for synapse-by-synapse or neuron-by-neuron analysis; and meso-scale for revealing local circuits. We performed a comprehensive fine-scale circuit mapping of hippocampal regions using the mGRASP. This mapping revealed spatially ...
Ch 8 Nervous System Test Key 1. In a neuron, short, branching
... have no initial knee jerk response but after 2 weeks your response is exaggerated. What does it indicate? A. The neurons within the brain or spinal cord that modify this reflex have been damaged. b. The neurons within the periphery have been damaged. c. Your cerebral cortex was damaged but has since ...
... have no initial knee jerk response but after 2 weeks your response is exaggerated. What does it indicate? A. The neurons within the brain or spinal cord that modify this reflex have been damaged. b. The neurons within the periphery have been damaged. c. Your cerebral cortex was damaged but has since ...
Species-Recognition in the Field Cricket
... quency of the calling song of Teleogryllus oceanicus; female crickets are attracted to this frequency. Forty kHz is in the ultrasonic range and occurs in the vocalizations produced by insectivorous bats (Griffin, 1974); crickets attempting to escape from echolocating bats would be expected to react ...
... quency of the calling song of Teleogryllus oceanicus; female crickets are attracted to this frequency. Forty kHz is in the ultrasonic range and occurs in the vocalizations produced by insectivorous bats (Griffin, 1974); crickets attempting to escape from echolocating bats would be expected to react ...
Neuronal mechanisms for the perception of ambiguous stimuli
... The study of how the brain responds to a shift in the perceptual appearance of a figure provides insights into neuronal processes that are crucially associated with perceptual decision-making. In the ideal case, the neuronal signals do indeed reflect the shift in perceptual appearance, because the e ...
... The study of how the brain responds to a shift in the perceptual appearance of a figure provides insights into neuronal processes that are crucially associated with perceptual decision-making. In the ideal case, the neuronal signals do indeed reflect the shift in perceptual appearance, because the e ...
Zebrafish and motor control over the last decade
... lines with fluorescent subsets of neurons are leading to animals with color coded nervous systems (Higashijima et al., 2000, 2004a; Kimura et al., 2006). This allows for a combination with calcium indicators to look at the pattern of activity in one cell type, or for targeted patch recording directe ...
... lines with fluorescent subsets of neurons are leading to animals with color coded nervous systems (Higashijima et al., 2000, 2004a; Kimura et al., 2006). This allows for a combination with calcium indicators to look at the pattern of activity in one cell type, or for targeted patch recording directe ...
Poulet etal - Cornell University
... fused for external, or exafferent, sensory information of the same modality, which could elicit an inappropriate behavioural response. Thus, the discrimination between self-generated and external sensory stimuli is a fundamental problem in perception and a central question of sensory neuroscience. Ph ...
... fused for external, or exafferent, sensory information of the same modality, which could elicit an inappropriate behavioural response. Thus, the discrimination between self-generated and external sensory stimuli is a fundamental problem in perception and a central question of sensory neuroscience. Ph ...
(2006) Changes in visual receptive fields with microstimulation of
... same neurons, when two stimuli appeared in the RF, the effect of microstimulation was not predicted by the magnitude of the onset response to the aligned stimulus (r = 0.17; p > 0.09). Thus the impact of FEF stimulation on responses to pairs of RF stimuli was altered by the presence of the second RF ...
... same neurons, when two stimuli appeared in the RF, the effect of microstimulation was not predicted by the magnitude of the onset response to the aligned stimulus (r = 0.17; p > 0.09). Thus the impact of FEF stimulation on responses to pairs of RF stimuli was altered by the presence of the second RF ...
Proceedings of 2013 BMI the Second International Conference on
... unable to move. Conventional assistive devices for people with severe motor disabilities are inherently limited, often relying on residual motor function for their use. Brain-computer interfaces (BCIs) aim to provide a more powerful signal source by tapping into the rich information content that is ...
... unable to move. Conventional assistive devices for people with severe motor disabilities are inherently limited, often relying on residual motor function for their use. Brain-computer interfaces (BCIs) aim to provide a more powerful signal source by tapping into the rich information content that is ...
Computational principles underlying recognition
... Boyan 1992, 1999). Local neurons perform first processing steps and then transmit their messages to a rather large number of ascending neurons (so far around 15–20 different types have been identified, see Römer and Marquart 1984; Stumpner 1988; Stumpner and Ronacher 1991, 1994). The ascending neuro ...
... Boyan 1992, 1999). Local neurons perform first processing steps and then transmit their messages to a rather large number of ascending neurons (so far around 15–20 different types have been identified, see Römer and Marquart 1984; Stumpner 1988; Stumpner and Ronacher 1991, 1994). The ascending neuro ...
action potential
... combining excitatory and inhibitory signals http://neuroscience.uth.tmc.edu/s1/introduction.html ...
... combining excitatory and inhibitory signals http://neuroscience.uth.tmc.edu/s1/introduction.html ...
03&04 ANS LECTURE Sultan Ayoub Meo Sept 2 2012
... ANS activated by centers located in the spinal cord, brain stem, hypothalamus and also cerebral cortex especially the limbic cortex can transmit signals to the lower centers, influence ...
... ANS activated by centers located in the spinal cord, brain stem, hypothalamus and also cerebral cortex especially the limbic cortex can transmit signals to the lower centers, influence ...
Impaired odour discrimination on desynchronization of odour
... pattern recognition remain to be demonstrated—a task requiring a behavioural paradigm. Using honeybees, we now demonstrate that odour encoding involves, as it does in locusts, the oscillatory synchronization of assemblies of projection neurons and that this synchronization is also selectively abolis ...
... pattern recognition remain to be demonstrated—a task requiring a behavioural paradigm. Using honeybees, we now demonstrate that odour encoding involves, as it does in locusts, the oscillatory synchronization of assemblies of projection neurons and that this synchronization is also selectively abolis ...
XVI. COMMUNICATIONS BIOPHYSICS W. Dr. Ursula
... stimuli in the form of a decrease of amplitude in the steady-state response begins at rates between Z/sec and 100/sec. For rates between 100/sec and 400/sec, wherein the peripheral responses are still synchronized with the stimulus frequency, only the first few (1-3) responses are larger in size tha ...
... stimuli in the form of a decrease of amplitude in the steady-state response begins at rates between Z/sec and 100/sec. For rates between 100/sec and 400/sec, wherein the peripheral responses are still synchronized with the stimulus frequency, only the first few (1-3) responses are larger in size tha ...
Stop-Signal Task - Gemstone Honors Program
... shown to reduce ADHD symptoms in patients (Weisler, 2005). The impact of Adderall® on neurotransmitters has been established through previous research; however, its impact on neural firing in relation to impulsivity is yet unexamined. Neural firing in a specific brain region during a task demonstrat ...
... shown to reduce ADHD symptoms in patients (Weisler, 2005). The impact of Adderall® on neurotransmitters has been established through previous research; however, its impact on neural firing in relation to impulsivity is yet unexamined. Neural firing in a specific brain region during a task demonstrat ...
6 slides per sheet
... Cortical Development: Laminar structure of the cortex is constructed from the inside-out Neurons are born in the ventricular layer and migrate radially along glia to their ...
... Cortical Development: Laminar structure of the cortex is constructed from the inside-out Neurons are born in the ventricular layer and migrate radially along glia to their ...
Current advances and pressing problems in studies of stopping
... SSRT in SEF [9!!] or LIP [32]. Thus, SEF and LIP do not satisfy the logical criteria necessary to contribute directly to movement control. Similarly, neurons in supplementary motor area (SMA) do not modulate early enough to control limb movements [33!]. Results from preSMA are mixed. One laboratory ...
... SSRT in SEF [9!!] or LIP [32]. Thus, SEF and LIP do not satisfy the logical criteria necessary to contribute directly to movement control. Similarly, neurons in supplementary motor area (SMA) do not modulate early enough to control limb movements [33!]. Results from preSMA are mixed. One laboratory ...
Neural and Computational Mechanisms of Action Processing
... sulcus region. In this region neurons with view-dependent and view-independent properties have been described before (Perrett et al., 1985). A common explanation for the computational function of view-tuned neuros in the visual pathway is that they represent an intermediate step towards view-invaria ...
... sulcus region. In this region neurons with view-dependent and view-independent properties have been described before (Perrett et al., 1985). A common explanation for the computational function of view-tuned neuros in the visual pathway is that they represent an intermediate step towards view-invaria ...
Sten Grillner
... thus demonstrated that the two basic modes of coordination could be generated by the spinal cord devoid of any influences from the brain. When the detailed motor pattern was recorded, in terms of electromyography (EMG) of the different limb muscles, the pattern was virtually identical to that of the ...
... thus demonstrated that the two basic modes of coordination could be generated by the spinal cord devoid of any influences from the brain. When the detailed motor pattern was recorded, in terms of electromyography (EMG) of the different limb muscles, the pattern was virtually identical to that of the ...
Lecture 14. Chiroptera II
... “Forelimb anatomy indicates that the new bat was capable of powered flight like other Eocene bats, but ear morphology suggests that it lacked their echolocation abilities, supporting a 'flight first' hypothesis for chiropteran evolution. The shape of the wings suggests that an undulating glidin ...
... “Forelimb anatomy indicates that the new bat was capable of powered flight like other Eocene bats, but ear morphology suggests that it lacked their echolocation abilities, supporting a 'flight first' hypothesis for chiropteran evolution. The shape of the wings suggests that an undulating glidin ...
Time course of the development of motor behaviors in the zebrafish
... offering the possibility of characterizing the molecular determinants for the development of locomotion. Aspects of the development of locomotion have been described in vertebrates including Xenopus (Kahn and Roberts, 1982), chick (O’Donovan, 1989), rats (Kudo and Yamada, 1987), and zebrafish (Kimme ...
... offering the possibility of characterizing the molecular determinants for the development of locomotion. Aspects of the development of locomotion have been described in vertebrates including Xenopus (Kahn and Roberts, 1982), chick (O’Donovan, 1989), rats (Kudo and Yamada, 1987), and zebrafish (Kimme ...
Stochastic dynamics as a principle of brain function
... factor in a network with a finite (i.e., limited) number of neurons. The spiking noise can be described as introducing statistical fluctuations into the finite-size system. It is important that the outcome that is reached, and not just its time course, is influenced on each trial by these statistical flu ...
... factor in a network with a finite (i.e., limited) number of neurons. The spiking noise can be described as introducing statistical fluctuations into the finite-size system. It is important that the outcome that is reached, and not just its time course, is influenced on each trial by these statistical flu ...
Document
... to the desired object. Moreover, where the clutter is adjacent to part of the object, the feature analysing neurons activated against a blank background may be different from those activated against a cluttered background, if there is no explicit segmentation process. In this paper we examine the pe ...
... to the desired object. Moreover, where the clutter is adjacent to part of the object, the feature analysing neurons activated against a blank background may be different from those activated against a cluttered background, if there is no explicit segmentation process. In this paper we examine the pe ...
Cortical remodelling induced by activity of ventral tegmental
... However, in experimental animals VP±AI pairs showed much greater spontaneous activity correlation than did other non-AI pairs. This effect was speci®c for the cortical zones with altered plasticityÐonly activity from the AI area that represented the paired stimulus frequency (9-kHz AI) became highly ...
... However, in experimental animals VP±AI pairs showed much greater spontaneous activity correlation than did other non-AI pairs. This effect was speci®c for the cortical zones with altered plasticityÐonly activity from the AI area that represented the paired stimulus frequency (9-kHz AI) became highly ...
Bayesian Computation in Recurrent Neural Circuits
... Bayesian Computation in Recurrent Neural Circuits Rajesh P. N. Rao ...
... Bayesian Computation in Recurrent Neural Circuits Rajesh P. N. Rao ...
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.