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FINAL-FTDMulticenterStudy_R - ORBi
FINAL-FTDMulticenterStudy_R - ORBi

... We then performed direct comparison analyses in order to replicate previous findings [21] by comparing metabolism in the different behavioral subgroups of fv-FTD. We therefore divided the FTD group into subgroups based on NPI scores for disinhibition and apathy. A score of 8 or more was considered ...
Self-images in the video monitor coded by monkey intraparietal
Self-images in the video monitor coded by monkey intraparietal

... (twice the spontaneous firing rate of this cell). The densest area of excitation (namely, the visual RF) encompassed the area of the hand containing the somatosensory RF (Fig. 2D). As reported earlier (Iriki et al., 1996), this visual RF was formed around the hand regardless of the gaze direction (b ...
REVIEWS - Ping Pong
REVIEWS - Ping Pong

... information about ongoing glucose availability and use, as well as about body fat. Another difference is that leptin is a better correlate of subcutaneous fat47,48, whereas insulin correlates better with visceral fat49–51. Because visceral fat poses a much greater risk than subcutaneous fat for deve ...
Document
Document

... network, rather than at specific locations. In other words, in neural networks, both data and its processing are global rather than local.  Learning is a fundamental and essential characteristic of biological neural networks. The ease with which they can learn led to attempts to emulate a biologica ...
Graduate School Systems Neuroscience, MEDS 5371 2011 BASAL
Graduate School Systems Neuroscience, MEDS 5371 2011 BASAL

State-Dependent Computation Using Coupled Recurrent Networks
State-Dependent Computation Using Coupled Recurrent Networks

... input that match patterns embedded in the excitatory synaptic weights. The overall strength of the excitatory response is used to suppress outliers via the dynamical inhibitory threshold imposed by the global inhibitory neuron. Thus, the circuit can be seen as imposing an interpretation on an incomp ...
Papazian Lab Homepage Electrical excitability in the brain
Papazian Lab Homepage Electrical excitability in the brain

... molecular to the behavioral. We are studying how voltage controls the activity of K+ channels, how changes in channel function or expression affect the firing patterns of neurons and the emergent properties of neuronal circuits, and how altering neuronal excitability affects behavior. We are also in ...
Edge of chaos and prediction of computational performance for
Edge of chaos and prediction of computational performance for

... Fig. 1. Performance of different types of neural microcircuit models with linear readouts for classification of spike patterns. (a) In the top row are two examples of the 80 spike patterns that were used as templates for noisy variations (each consisting of 4 Poisson spike trains at 20 Hz over 200 m ...
vocabulary - anatomy and physiology one
vocabulary - anatomy and physiology one

... Explain what happens in the depolarization and repolarization phases of an action potential. Explain how changes in membrane permeability and the movement of sodium ions and potassium ions cause each phase. Explain how afterpotential occurs and its importance. Describe the relative and absolute refr ...
Objectives 35 - U
Objectives 35 - U

... striatum; internal capsule grows between these structures leaving bridges of gray matter - putamen and globus pallidus have different connections, but are physically attached 2. General connections - basal ganglia have few projections downstream to brainstem and spinal cord - instead, they affect mo ...
Canonical computations of cerebral cortex
Canonical computations of cerebral cortex

Development of the Nervous System of Carinina ochracea
Development of the Nervous System of Carinina ochracea

... proboscis housed in a fluid-filled secondary body cavity (the rhynchocoel), and a ring-shaped brain, encircling the proboscis insertion instead of the mouth opening [10,11]. Currenly available immunohistochemical observations on nervous system development in Nemertea draw a heterogeneous and still f ...
Review Article Long-Term Memory Search across the
Review Article Long-Term Memory Search across the

... cell layers to reach photoreceptor-containing cones and rods. Retinal image formation relies mainly on differential glutamate signalling by ON and OFF cones [19, 40]. Local calculations performed by dendritic branches of direction-selective retinal ganglion cells (RGC) and asymmetric nature of synapt ...
Presumed Apoptosis and Reduced Arcuate Nucleus
Presumed Apoptosis and Reduced Arcuate Nucleus

... TUNEL+ cells in hypoglycemic brains. A survey of sections through the entire brain showed only 2 areas in which there were cells exhibiting the TUNEL reaction (Fig. 2). The results were similar for animals subjected to either 1 or 3 bouts of hypoglycemia (Table 1) and for those given insulin by intr ...
How is the stimulus represented in the nervous system?
How is the stimulus represented in the nervous system?

... cortex show different patterns of response depending on sound source direction. ...
View PDF - Nedivi Lab
View PDF - Nedivi Lab

... be cell type specific. cpg15 is also expressed when target-derived tro- GPI-linked CPG15 and that the smaller protein is a soluble form of phic support is crucial for protection from apoptosis used to match CPG15. To determine whether both CPG15 forms are expressed in vivo and at neuron number with ...
A táplálékfelvétel, a só- és vízháztartás neuroanatómiája
A táplálékfelvétel, a só- és vízháztartás neuroanatómiája

... paraventriculáris magot a stresszválasz központi részének, a „hypothalamohypophysis-mellékvesekéreg szabályozó rendszer” („HPA axis”) kiinduló pontjának tekintik. ...
A Neurodynamical cortical model of visual attention and
A Neurodynamical cortical model of visual attention and

... to visual areas V 1, V 2, V 4, IT, and a set of Ôdorsal stream’ modules that correspond approximately to V 1, V 2 and PP. 2.1.2. The biased competition hypothesis of attention and visual search The dichotomy between parallel and serial operations in visual search has been challenged by psychological ...
Synchronisation hubs in the visual cortex may arise from strong
Synchronisation hubs in the visual cortex may arise from strong

... predict that the strength and orientation tuning of synaptic inhibition are heterogeneous across area 17 neurons, which could have important implications for these neurons’ sensory processing capabilities. Furthermore, although our experimental recordings were conducted in the visual cortex, our mod ...
Fig. 2 - eNeuro
Fig. 2 - eNeuro

... ␮M), which specifically binds with nicotinic receptors at the tadpole neuromuscular junctions (Li et al., 2004b; Li et al., 2014). After immobilization with ␣-bungarotoxin, the tadpole was re-pinned in the dissection bath and further cuts were made to remove ependymal cells from the inside of the hi ...
The Representation of Complex Images in Spatial Frequency
The Representation of Complex Images in Spatial Frequency

... Correspondence should be addressed to Naoum P. Issa, 947 East 58th Street, MC0926, Department of Neurobiology, University of Chicago, Chicago, IL 60637. E-mail: [email protected]. ...
1 The Brain and Behavior
1 The Brain and Behavior

... action and with the control of movement; the parietal lobe with somatic sensation, with forming a body image, and with relating one's body image with extrapersonal space; the occipital lobe with vision; the temporal lobe with hearing; and through its deep structures—the hippocampus and the amygdaloi ...
Severe Reduction of Rat Defensive Behavior to a Predator by
Severe Reduction of Rat Defensive Behavior to a Predator by

... Each day for 1 week before the experimental procedure, 10 animals were individually housed, and handled repeatedly by the same investigator that conducted the behavioral test. To examine the pattern of hypothalamic activation during the display of innate defensive behavior, five animals were then pl ...
[3h]cyclohexyladenosine
[3h]cyclohexyladenosine

... found (0 to 28 grains/600 pm3) was linear with tissue radioactivity (Unnerstall et al., 1981). Blank slides had a uniform grain density of 2.2 f 0.2 grains/600 pm3. The grain densities defined in this paper as significant were greater than or equal to 3.7 + 0.3 grains/600 pm3 (p < 0.005). All of the ...
prenatal formation of cortical input and development of
prenatal formation of cortical input and development of

... layer 5 neurons have had ample time to migrate to the cortex and to elaborate efferent axons that reach the nearby neostriaturn. Our findings are also in general agreement with the timing of development of efferent subcortical connections from the primary visual cortex in the same species (Shatz and ...
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Metastability in the brain

In the field of computational neuroscience, the theory of metastability refers to the human brain’s ability to integrate several functional parts and to produce neural oscillations in a cooperative and coordinated manner, providing the basis for conscious activity.Metastability, a state in which signals (such as oscillatory waves) fall outside their natural equilibrium state but persist for an extended period of time, is a principle that describes the brain’s ability to make sense out of seemingly random environmental cues. In the past 25 years, interest in metastability and the underlying framework of nonlinear dynamics has been fueled by advancements in the methods by which computers model brain activity.
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