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angol tézisfüzet0531
angol tézisfüzet0531

... The retrograde tracer cholera toxin β subunit (CTB; List Biological Laboratories) was injected into specific brain regions where the majority of PHAL/pro-TRHcontaining, double-labeled axons were found in the anterograde tract-tracing experiment (0.5% CTB, 6.0 µamps for 11-15 min, pulsed at 7 second ...
Axonogenesis in the Brain of Zebrafish Embryos
Axonogenesis in the Brain of Zebrafish Embryos

... A method for consistent labeling of neurons in embryonic nervous systems can be extremely useful for studies of axonogenesis. For example, an antibody against HRP, which appears to label all insect embryonic neurons, was used to identify many of the early peripheral neurons of insect embryos and to ...
No Slide Title
No Slide Title

... meaningful hand movements made by the experimenter or another monkey. F5 is endowed with an ...
Impaired odour discrimination on desynchronization of odour
Impaired odour discrimination on desynchronization of odour

... saline or picrotoxin and then conditioned with C, an aliphatic alcohol, after a recovery interval t 1 ¼ 10 min (Fig. 4a). Training and testing were conducted blind. Bees in both PCT- and saline-treated groups learned the conditioned-stimulus sucrose pairing equally well, showing a maximum response b ...
Organization of Cortical and Thalamic Input to Pyramidal Neurons in
Organization of Cortical and Thalamic Input to Pyramidal Neurons in

... that are critical for repolarizing the axon. Under these conditions, short laser pulses (1–2 ms) depolarized ChR2-expressing axons in the vicinity of the laser beam and triggered the local release of glutamate. NMDA receptors were blocked (CPP) to sharpen excitatory postsynaptic responses and to pre ...
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Vesicular glutamate transporter 3

... ter of serotonergic neurons, whereas the DRDSh consists of scattered serotonergic neurons in the surrounding regions (Abrams et al., 2005; Lowry et al., 2008). The rat DR has, however, been indicated to contain a substantial number of nonserotonergic neurons (Descarries et al., 1982). Numerous studi ...
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Olfactory modulation by dopamine in the context of aversive learning

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... the anterior thalamic nuclei play an important role in memory (Mair et al., 1979; Mayes et al., 1988; Kopelman, 1995; Parker and Gaffan, 1997a; Gaffan and Parker, 2000), suggested by strong inputs from the hippocampal formation and the hypothalamic mammillary body in various species, including rats, ...
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Dendritic Morphology of Pyramidal Neurons in the

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found that in flight, 3D hippocampal place cells had nearly spherical

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REFLEX ARCS - Anatomy.tv
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neuronal types and their specification dynamics in

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Bridging Cytoarchitectonics and Connectomics in Human Cerebral
Bridging Cytoarchitectonics and Connectomics in Human Cerebral

... Cytoarchitectonic mappings of the human cortex were taken from the 1925 Von Economo and Koskinas work Die Cytoarchitektonik der Hirnrinde des erwachsenen Menschen (Von Economo and Koskinas, 1925) [translated Cytoarchitectonics of the Adult Human Cerebral Cortex (Triarhou, 2008)]. As described in the ...
Appendix Basics of the Nervous System
Appendix Basics of the Nervous System

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disparity detection from stereo

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Cell-Type Specific Channelopathies in the Prefrontal Cortex of the
Cell-Type Specific Channelopathies in the Prefrontal Cortex of the

... the most common form of inherited mental retardation. In the fmr1-/y mouse model of FXS, we found neuron-type-specific alterations in the function of a group of ion channels within the prefrontal cortex, a brain region associated with many cognitive deficits in FXS. Because of these alterations, neu ...
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Visual and presaccadic activity in area 8Ar of the macaque monkey

... increasing size with eccentricity. These trends are demonstrated in the frontal eye fields (FEF), ...
The LIM and POU homeobox genes ttx-3 and unc
The LIM and POU homeobox genes ttx-3 and unc

... 2010). However, few neuronal transcription factors are expressed exclusively in only one specific neuronal cell type (Gray et al., 2004; Lein et al., 2007). For example, in addition to being expressed in midbrain dopaminergic neurons, Nurr1 is expressed in other nondopaminergic neuronal cell types i ...
Neurons in the Most Superficial Lamina of the Mouse Superior
Neurons in the Most Superficial Lamina of the Mouse Superior

... center of the RFs of the imaged cells or full screen of the stimulus monitor. For imaging, the gratings were displayed for 3 s, and a gray background was shown for 5 s between presentations. The spatial and temporal frequencies of the drifting gratings were 0.08 cycles/° and 2 Hz, respectively, chos ...
Inferring spike-timing-dependent plasticity from spike train data
Inferring spike-timing-dependent plasticity from spike train data

... [5]. Here we instead attempt to estimate STDP in vivo by using simultaneously recorded extracellular spike trains and develop methods to estimate the time-varying strength of synapses. In the past few years model-based methods have been developed that allow the estimation of coupling between pairs o ...
PDF
PDF

... Genome Informatics) expression was found to be reduced in Gde2null cortices by 20%, although overall numbers of Ctip2+ (Bcl11b– Mouse Genome Informatics) layer V neurons was unchanged, whereas there was a dramatic loss of RORb+ layer IV neurons (Fig. 2B,B⬘,C,C⬘,H). Strikingly, Gde2–/– animals showed ...
Art.-Schoenbaum (R) - UCSD Cognitive Science
Art.-Schoenbaum (R) - UCSD Cognitive Science

... Comparison of neural activity on positive go and negative go trials revealed that a substantial population of neurons in both OFC and ABL fired differentially depending on whether the subsequent outcome was to be the rewarding sucrose solution or the aversive quinine. This comparison of activity was ...
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Mirror neuron

A mirror neuron is a neuron that fires both when an animal acts and when the animal observes the same action performed by another. Thus, the neuron ""mirrors"" the behavior of the other, as though the observer were itself acting. Such neurons have been directly observed in primate species. Birds have been shown to have imitative resonance behaviors and neurological evidence suggests the presence of some form of mirroring system. In humans, brain activity consistent with that of mirror neurons has been found in the premotor cortex, the supplementary motor area, the primary somatosensory cortex and the inferior parietal cortex.The function of the mirror system is a subject of much speculation. Many researchers in cognitive neuroscience and cognitive psychology consider that this system provides the physiological mechanism for the perception/action coupling (see the common coding theory). They argue that mirror neurons may be important for understanding the actions of other people, and for learning new skills by imitation. Some researchers also speculate that mirror systems may simulate observed actions, and thus contribute to theory of mind skills, while others relate mirror neurons to language abilities. Neuroscientists such as Marco Iacoboni (UCLA) have argued that mirror neuron systems in the human brain help us understand the actions and intentions of other people. In a study published in March 2005 Iacoboni and his colleagues reported that mirror neurons could discern if another person who was picking up a cup of tea planned to drink from it or clear it from the table. In addition, Iacoboni has argued that mirror neurons are the neural basis of the human capacity for emotions such as empathy.It has also been proposed that problems with the mirror neuron system may underlie cognitive disorders, particularly autism. However the connection between mirror neuron dysfunction and autism is tentative and it remains to be seen how mirror neurons may be related to many of the important characteristics of autism.Despite the excitement generated by these findings, to date, no widely accepted neural or computational models have been put forward to describe how mirror neuron activity supports cognitive functions such as imitation. There are neuroscientists who caution that the claims being made for the role of mirror neurons are not supported by adequate research.
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