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Parallel Evolution of Cortical Areas Involved in Skilled Hand Use
Parallel Evolution of Cortical Areas Involved in Skilled Hand Use

... deep stimulation (Figs. 2, 3). The most striking feature of area 5 is that it is dominated by the representation of the forelimb and hand, with very little space devoted to other body parts. Indeed, in the case in which the mediolateral extent of the IPS was examined most extensively (Fig. 3, R0503) ...
Neuronal Diversity and Temporal Dynamics: The Unity of
Neuronal Diversity and Temporal Dynamics: The Unity of

... with neurogliaform cells, are a major source of nitric oxide, probably released by their extraordinarily dense axons. They modulate preand postsynaptic excitability at slower time scales and more diffusely than do other interneurons providing homeostasis to the network. How the different firing patt ...
Modulation of Synaptic Transmission to Second
Modulation of Synaptic Transmission to Second

... The caudal nucleus tractus solitarius (cNTS), where peripheral chemoreceptor afferents and other visceral afferents make their first central synapses (Mifflin, 1992), has intense anatomical connections with central noradrenergic neural structures (Loewy, 1990). The cNTS also contains noradrenergic n ...
Exposure to excess glucocorticoids alters dendritic
Exposure to excess glucocorticoids alters dendritic

... shaped. Such cells did not seem to be associated with areas of degeneration as they were usually observed adjacent t o apparently healthy CA3 pyramidal cells (Fig. 3). In some, but not all, C O R T - t r e a t e d brains, an increase was noted in the number of very small, darkly staining cells which ...
SENSE AND THE SINGLE NEURON: Probing the Physiology of
SENSE AND THE SINGLE NEURON: Probing the Physiology of

... Sensory physiology currently uses several approaches for investigating how the nervous system processes sensory information. The conceptually simplest of these is to measure tuning curves as selected parameters of the sensory stimulus are varied. A neuron is considered to be “tuned” if the response ...
1. A biological psychologist would be more likely to study
1. A biological psychologist would be more likely to study

... cell body to the axon to the dendrites. dendrites to the axon to the cell body. axon to the cell body to the dendrites. dendrites to the cell body to the axon. axon to the dendrites to the cell body. ...
Lecture
Lecture

... • Increases selectivity (reduces bandwidth of auditory filter) • Gives ear a logarithmic (non-linear) amplitude response ...
Letter to Neuroscience
Letter to Neuroscience

... Figure 3 depicts a MR AV cell (Fig. 3A) and a NR AV cell (Fig. 3B). As shown, the MR cell ¢res rhythmically in bursts with theta (top traces of Fig. 3A). The rhythmical activity is further exempli¢ed by the peaks in the autocorrelogram, the unit-EEG locked oscillations in the crosscorrelogram and th ...
Nervous System Intro Part 1
Nervous System Intro Part 1

... Continuation of the Nerve Impulse between Neurons  Impulses are able to cross the synapse to another nerve  Neurotransmitter is released from a nerve’s axon terminal  The dendrite of the next neuron has receptors that are stimulated by the neurotransmitter  An action potential is started in the ...
The comparative electrobiology of gelatinous
The comparative electrobiology of gelatinous

... another. Anyone animal will usually have several separate nerve nets, with each serving a particular function; for instance, one might innervate the tentacles, another the swimming muscle, and so on. Activity can spread between nerve nets, thereby conveying sensory information to an effector system. ...
Gee JNeuro 2012 - Stanford University
Gee JNeuro 2012 - Stanford University

... Given these previous findings, we first sought to confirm that that is highly specific for Cre-expressing neurons (Sohal et al., we could use h-current to classify neurons that have different 2009). We found that all of the presumed D2R-expressing neuprojection targeting. If prefrontal corticothalam ...
Slayt 1 - Department of Information Technologies
Slayt 1 - Department of Information Technologies

... – Image and data compression, automated information services, real-time translation of spoken language, customer payment processing systems ...
Vertical Organization of r=Aminobutyric Acid
Vertical Organization of r=Aminobutyric Acid

... Figure 2. Photomicrographs of a [3H]GABA injection and retrograde cell labeling in motor cortex of a monkey pretreated with amino-oxyacetic acid. The injection of [3H]GABA is in layers I to IIIA (A). Many labeled cells are found around the injection and, at some distance, in layer V. Bar = 200 pm. / ...
Learning & Memory
Learning & Memory

... • If animals learned to predict one type of event simply because it repeatedly occurred with another, they might often associate events in the environment that had no utility or advantage. • All animals capable of associative conditioning, from snails to humans, seem to associate events in their en ...
Nerve Muscle Physiology
Nerve Muscle Physiology

... • Act on motor sympathetic and sensory organs neurons • Regulates release of neurotransmitter from NMJ • Useful for treatment of motor neuron neuropathy and diabetic neuropathy • Others sub belong to neurotrophin family NT-4, ...
Role of the Preoptic-Anterior Hypothalamus in
Role of the Preoptic-Anterior Hypothalamus in

... thermal stimulation of this neural area. Early animal studies showed that warming the carotid blood or irrigating the third ventricle with warm saline produces panting and cutaneous vasodilation [3, 4, 7]. In these early studies, thermal stimulation was crude and not localized. The classic 1938 stud ...
ECE-453 Lecture 1
ECE-453 Lecture 1

... DL for Invariant Pattern Recognition (cont’) Each level in the system hierarchy has several modules that model cortical regions  A module can have several children and one parent, thus modules are arranged in a tree structure  The bottom most level is called level 1 and the level number increases ...
Cerebellum Learning objectives At the end of this lecture, the
Cerebellum Learning objectives At the end of this lecture, the

... Cerebellum Learning objectives At the end of this lecture, the students will be able to know: • Gross anatomy of the cerebellum • Various terms like folia, vermis, tracts and nuclei of cerebellum • Major efferent and afferent pathways and their function • Human diseases associated with cerebellar dy ...
Nerve Muscle Physiology
Nerve Muscle Physiology

... • Act on motor sympathetic and sensory organs neurons • Regulates release of neurotransmitter from NMJ • Useful for treatment of motor neuron neuropathy and diabetic neuropathy • Others sub belong to neurotrophin family NT-4, ...
File Now
File Now

... The retinal-geniculate-striate pathways include about 90 percent of axons of retinal ganglion cells. The left hemiretina of each eye (right visual field) connects to the right lateral geniculate nucleus (LGN); the right hemiretina (left visual field) connects to the left LGN. Most LGN neurons that p ...
Chaos and neural dynamics
Chaos and neural dynamics

... Let us discuss at first what progress has been achieved in this area for the last fifteen years and what key experiments can be used for the analysis. The main results in this avenue are associated with the analysis of the behavior of individual neurons and neural ensembles, which confirms that the ...
Multisensory anatomical pathways - Centre de Recherche Cerveau
Multisensory anatomical pathways - Centre de Recherche Cerveau

... area were also observed (de la Mothe et al., 2006a) in line with a similar observation in the Old World monkey (Smiley et al., 2007). In all cases, these heteromodal connections were described as not very dense, representing only few hundred projecting neurons. While this low strength of projection ...
Leading tonically active neurons of the striatum from reward
Leading tonically active neurons of the striatum from reward

... important for reward-related learning. Recent studies investigating the functional properties of TANs in behaving monkeys have shown that other factors beyond motivation can affect their responsiveness. There is now evidence that TAN responses reflect stimulus detection, movement control and recogni ...
syg-2
syg-2

... NEPH1 and nephrin are the mammalian orthologs which play a role in kidney development ...
Parallel Transformation of Tactile Signals in Central Circuits of
Parallel Transformation of Tactile Signals in Central Circuits of

... of the platform, and thus also the exposed parts of the head and thorax, were continually perfused with oxygenated saline. In all experiments except for those in Figure 7, all six legs were glued to the holder with UV-cured glue. A small hole was manually dissected in the cuticle of the ventral thor ...
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Feature detection (nervous system)

Feature detection is a process by which the nervous system sorts or filters complex natural stimuli in order to extract behaviorally relevant cues that have a high probability of being associated with important objects or organisms in their environment, as opposed to irrelevant background or noise. Feature detectors are individual neurons – or groups of neurons – in the brain which code for perceptually significant stimuli. Early in the sensory pathway feature detectors tend to have simple properties; later they become more and more complex as the features to which they respond become more and more specific. For example, simple cells in the visual cortex of the domestic cat (Felis catus), respond to edges – a feature which is more likely to occur in objects and organisms in the environment. By contrast, the background of a natural visual environment tends to be noisy – emphasizing high spatial frequencies but lacking in extended edges. Responding selectively to an extended edge – either a bright line on a dark background, or the reverse – highlights objects that are near or very large. Edge detectors are useful to a cat, because edges do not occur often in the background “noise” of the visual environment, which is of little consequence to the animal.
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