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Auditory Neurons in the Dorsal Cortex of the Inferior Colliculus
Auditory Neurons in the Dorsal Cortex of the Inferior Colliculus

... the auditory nerve. The cochlear nucleus is subdivided into ventral and dorsal divisions (VCN and DCN, respectively). The ventral division can be further subdivided into the anterior ventral cochlear nucleus (AVCN), and the posterior ventral cochlear nucleus (PVCN). Each division of the CN receives ...
MS Word DOC - AvianBrain.org
MS Word DOC - AvianBrain.org

... major histogenetic divisions: the pallium and the subpallium. The existence of these two divisions is based on developmental, molecular, and connectivity data explained below. If we consider the telencephalon isolated from the rest of the brain, the pallium is located at the top of the telencephalic ...
Neuroscience of Addiction Review
Neuroscience of Addiction Review

... neurons also fires to sensory stimuli (sounds or lights) that have been experimentally paired with cocaine delivery. Nucleus accumbens neurons may therefore mediate conditioned drug responses (Carelli and Deadwyler, 1996). Similarly, conditioned sensory stimuli are strong elicitors of “craving” in c ...
Fast Network Oscillations in the Hippocampal CA1
Fast Network Oscillations in the Hippocampal CA1

... waves in the CA1 region were generated by more than one mechanism. The frequencies of the individual, high-frequency oscillatory epochs were best described by a bimodal distribution with peaks at 180 and 110 Hz. The faster events were of larger amplitude than the “slow” (110 Hz) oscillations (Figs. ...
Hypergravity hinders axonal development of motor neurons
Hypergravity hinders axonal development of motor neurons

... space mission for 16 days (DeFelipe et al., 2002). Alterations in gravity could also affect the development of neuronal projections. In hypergravity conditions, 150G force induced neuron-like cell differentiation and development of longer neurites in cultured PC12 cells (Genchi et al., 2015). Moreov ...
Evolutionary Connectionism and Mind/Brain Modularity - laral
Evolutionary Connectionism and Mind/Brain Modularity - laral

... rather than being innate. In this chapter we argue for a form of connectionism which is not anti-modularist or antiinnatist. Connectionist modules are anatomically separated and/or functionally specialized parts of a neural network and they may be the result of a process of evolution in a population ...
Plasticity of Binocularity and Visual Acuity Are Differentially Limited
Plasticity of Binocularity and Visual Acuity Are Differentially Limited

... Coronal sections containing visual cortex were washed in TBS (50 mM Tris-HCl, 150 mM NaCl, pH 7.4, 3 ⫻ 5 min) and then incubated in 100 mM sodium citrate buffer, pH 4.5, (Sigma-Aldrich S1804) at 95°C for 10 min for antigen retrieval. Sections were allowed to cool to room temperature and then washed ...
Evolutionary Connectionism and Mind/Brain Modularity - laral
Evolutionary Connectionism and Mind/Brain Modularity - laral

... rather than being innate. In this chapter we argue for a form of connectionism which is not anti-modularist or antiinnatist. Connectionist modules are anatomically separated and/or functionally specialized parts of a neural network and they may be the result of a process of evolution in a population ...
No Slide Title
No Slide Title

... Director, Headache Research and Treatment Program David Geffen School of Medicine at UCLA ...
BMC Neuroscience
BMC Neuroscience

... The second analysis addressed this question by considering the relationship of the structural type of pairs of connected cortices. This analysis was motivated by our previous findings that cortical type is highly correlated with the laminar pattern of ipsilateral corticocortical connections [15]. St ...
Human Reflexes Introductory Reading and
Human Reflexes Introductory Reading and

... Reflex testing is an important diagnostic tool for assessing the condition of the nervous system. Distorted, exaggerated, or reflexes that are absent may indicate degeneration or pathology of portions of the nervous system, often before other signs are apparent. If the spinal cord is damaged, then r ...
Brain stem excitatory and inhibitory signaling pathways regulating
Brain stem excitatory and inhibitory signaling pathways regulating

... (CNS) control of cholinergic outflow to the airways: 1) transmission of bronchoconstrictive signals from the airways to the airway-related vagal preganglionic neurons (AVPNs) and 2) regulation of AVPN responses to excitatory inputs by central GABAergic inhibitory pathways. In addition, the autocrine ...
Print this article - University of Toronto Journal of Undergraduate Life
Print this article - University of Toronto Journal of Undergraduate Life

... periods of levodopa exposure [19, 24]. In addition to experimental investigations, numerous observational studies have shown that the severity and the duration of PD, the duration of levodopa therapy and high initial dose of levodopa are major risk factors associated with LIDs [20, 25, 26]. All toge ...
Neuron-Binding Human Monoclonal Antibodies Support Central
Neuron-Binding Human Monoclonal Antibodies Support Central

... significantly more remyelination (14). The direct transfer of sera or purified immunoglobulin (Ig) from SCH-immunized, uninfected mice to non-immunized, TMEV-infected mice promoted the same degree of remyelination as pre-immunization (15, 16). Analogous immunization of mice with SCH prior to axonal ...
Dopamine Deficiency in a Genetic Mouse Model of Lesch
Dopamine Deficiency in a Genetic Mouse Model of Lesch

... We have examined several aspects of neurotransmitter function in the brains of mice carrying a deletion mutation in the gene encoding the purine salvage enzyme hypoxanthine-guanine phosphoribosyltransferase (HPRT). During the first 6 weeks of postnatal development, dopamine levels in whole-brain ext ...
A behavioral switch: cGMP and PKC signaling in olfactory neurons
A behavioral switch: cGMP and PKC signaling in olfactory neurons

... repulsive chemicals sensed by neurons called AWB, ASH and ADL. The sensory neurons detect environmental chemicals using G protein-coupled receptors (GPCRs) encoded by ~1700 chemoreceptor genes, as well as other receptors (Robertson and Thomas, 2006). Each sensory neuron expresses many chemoreceptor ...
Visual Experience Is Necessary for Maintenance But Not
Visual Experience Is Necessary for Maintenance But Not

... analyzed separately because they necessarily yield different estimates of RF size. (The difference arises because the threshold for defining the RF edge is set differently and stimulus features are different, but the 2 methods are internally consistent; Pallas and Finlay 1989). Stimuli were generate ...
NEURAL CONNECTIONS: Some You Use, Some You Lose
NEURAL CONNECTIONS: Some You Use, Some You Lose

... ending of the axon to the postsynaptic membrane of the adjoining dendrite. These chemical messengers then either excite or inhibit electrical activity in the postsynaptic cell. Via their synaptic connections, brain cells form the neural circuits that somehow support our sensory, motor, and cognitive ...
A Curious Commentary on a Book on Mirror Neurons and Other
A Curious Commentary on a Book on Mirror Neurons and Other

... recognizing emotions, or perceiving speech sounds. In fact, I evaluated individual claims within their own systems. I asked whether damage to the motor speech system affected speech perception, whether damage to the limb control system affected manual gesture understanding, whether facial paralysis ...
Executive Control Over Cognition: Stronger and Earlier Rule
Executive Control Over Cognition: Stronger and Earlier Rule

... 2009), we have an incomplete understanding of the neural mechReceived July 13, 2011; revised Dec. 1, 2011; accepted Dec. 21, 2011. Author contributions: S.J.G. and M.V.C. designed research; S.J.G., R.K.B., and S.S. performed research; S.J.G., S.S., and M.V.C. analyzed data; S.J.G., R.K.B., S.S., and ...
Histochemical and lmmunocytochemical Compartments of the
Histochemical and lmmunocytochemical Compartments of the

... Animals were deeply anesthetized with intravenous Nembutal and perfused through the left ventricle with 300 ml saline, followed by 3 liters of a fixative solution containing 2.0% or 4.0% paraformaldehyde and 0. l”Yaor 0.2% glutaraldehyde in 0.1 M phosphate buffer (pH, 7.4), then successively with lo ...
Sònia Najas Sales Role of DYRK1A in the development of Syndrome
Sònia Najas Sales Role of DYRK1A in the development of Syndrome

... syndrome (DS), which is caused by an extra copy of human chromosome (HSA) 21. The analysis of brain tissue from foetuses and children with DS and from trisomic mice that model the syndrome indicated that intellectual disability in DS is caused, at least in part, by alterations in the cytoarchitectur ...
Visual Stimulation Regulates the Expression of Transcription Factors
Visual Stimulation Regulates the Expression of Transcription Factors

... neurotransmitter/receptor systems, structural proteins, and intracellular second messengers are modulated by synaptic stimulation (Hendry and Kennedy, 1986; Castren et al., 1992; Benson et al., 1994). It is believed that these are either affected by or ultimately converge on the third-messenger syst ...
- Stem-cell and Brain Research Institute
- Stem-cell and Brain Research Institute

... Figure 1. How to extract SLN values from feedforward and feedback connections. (A) Diagram illustrating the distribution of labeled neurons in feedforward and feedback projections after injection of a tracer in the target area. Each area has a specific SLN value derived from the laminar distribution ...
spinal cord - Zanichelli
spinal cord - Zanichelli

... the cell becomes more positive (depolarization). The action potential ends, K+ channels open and the equilibrium is reestablished (polarization). ...
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Optogenetics



Optogenetics (from Greek optikós, meaning ""seen, visible"") is a biological technique which involves the use of light to control cells in living tissue, typically neurons, that have been genetically modified to express light-sensitive ion channels. It is a neuromodulation method employed in neuroscience that uses a combination of techniques from optics and genetics to control and monitor the activities of individual neurons in living tissue—even within freely-moving animals—and to precisely measure the effects of those manipulations in real-time. The key reagents used in optogenetics are light-sensitive proteins. Spatially-precise neuronal control is achieved using optogenetic actuators like channelrhodopsin, halorhodopsin, and archaerhodopsin, while temporally-precise recordings can be made with the help of optogenetic sensors for calcium (Aequorin, Cameleon, GCaMP), chloride (Clomeleon) or membrane voltage (Mermaid).The earliest approaches were developed and applied by Boris Zemelman and Gero Miesenböck, at the Sloan-Kettering Cancer Center in New York City, and Dirk Trauner, Richard Kramer and Ehud Isacoff at the University of California, Berkeley; these methods conferred light sensitivity but were never reported to be useful by other laboratories due to the multiple components these approaches required. A distinct single-component approach involving microbial opsin genes introduced in 2005 turned out to be widely applied, as described below. Optogenetics is known for the high spatial and temporal resolution that it provides in altering the activity of specific types of neurons to control a subject's behaviour.In 2010, optogenetics was chosen as the ""Method of the Year"" across all fields of science and engineering by the interdisciplinary research journal Nature Methods. At the same time, optogenetics was highlighted in the article on “Breakthroughs of the Decade” in the academic research journal Science. These journals also referenced recent public-access general-interest video Method of the year video and textual SciAm summaries of optogenetics.
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