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Identification and characterisation of regionally enriched cortex
Identification and characterisation of regionally enriched cortex

... association studies of schizophrenia and bipolar affective disorder. However, none of the candidate genes, at the gene set level, seemed to be associated to these illnesses. In this work we have also partially characterised one of the 65 regionally enriched genes, the unannotated gene hypothetical p ...
Werkstuk Biologie The Tongue  <strong style="line
Werkstuk Biologie The Tongue
Proceedings of 2013 BMI the Second International Conference on
Proceedings of 2013 BMI the Second International Conference on

... but stay awake while lying in the MRI scanner. The rs-fMRI technique emerged from the phenomena that approximately 95% of the brain’s metabolism occurs because of spontaneous neuronal activity. The blood-oxygen-level-dependent (BOLD) fMRI signal indirectly measures the spontaneous neural activity. T ...
Brains, Bodies, and Behavior - 2012 Book Archive
Brains, Bodies, and Behavior - 2012 Book Archive

... Not only do the neural signals travel via electrical charges within the neuron, but they also travel via chemical transmission between the neurons. Neurons are separated by junction areas known as synapses13, areas where the terminal buttons at the end of the axon of one neuron nearly, but don’t qui ...
Goal-direction and top-down control
Goal-direction and top-down control

... in PFC showed much slower learning (approx. 30 trials, closely following improvements in behaviour). This difference in learning speed between PFC and BG is consistent with our hypothesis: simple, concrete associations, such as between a stimulus and a motor response, are first identified by the str ...
The Structure of the Nervous System
The Structure of the Nervous System

... dorsal side,and the bottom side is the ventral side. If we look down on the nervous system,we see that it may be divided into two equal halves (Figure 7.2b). The right side of the brain and spinal cord is the mirror image of the left side. This characteristicis known as bilateralsymmetry.with just a ...
Proceedings of 2014 BMI the Third International Conference on
Proceedings of 2014 BMI the Third International Conference on

... On   one   hand   neuroscience   is   rich   in   data   and   poor   in   theory.       On   the   other   hand,   many   computer   scientists   are   busy   with   engineering   inspired   methods,   not   motivated   by   brain   in ...
and Third-Order Neurons of Cockroach Ocelli
and Third-Order Neurons of Cockroach Ocelli

... responses are essentially linear. Second-order neurons o f a variety of visual systems also generate essentially linear responses. This is the case in vertebrate retinas (Naka et al., 1979; Tranchina et al., 1983; Chappell et al., 1985), in Limulus lateral eyes (Knight et al., 1970), in insect compo ...
Lentivirus-based genetic manipulations of cortical neurons and their
Lentivirus-based genetic manipulations of cortical neurons and their

... onset of the genetic manipulation and the cell type that is affected (1–3). However, even the most specific genetic designs affect entire populations of neurons, typically in multiple brain regions. The current transgenic兾knockout technologies thus do not allow targeting of small neuronal networks o ...
The Area Postrema - Queen`s University
The Area Postrema - Queen`s University

... autonomic systems controlling the cardiovascular system to ensure the heart beats hard enough and fast enough to provide perfusion of tissues at a level appropriate to ensure both the supply of oxygen and fuels, and the removal of metabolic products. To achieve this, these autonomic systems must con ...
Ramayya, A. G., Zaghloul, K. A., Weidemann, C. T., Baltuch, G. H.
Ramayya, A. G., Zaghloul, K. A., Weidemann, C. T., Baltuch, G. H.

... The human substantia nigra (SN) is thought to consist of two functionally distinct neuronal populations—dopaminergic (DA) neurons in the pars compacta subregion and GABA-ergic neurons in the pars reticulata subregion. However, a functional dissociation between these neuronal populations has not prev ...
the biological perspective
the biological perspective

... of little sac-like structures in it called synaptic vesicles. The word vesicle is Latin and means a “little blister” or “fluid-filled sac.” Inside the synaptic vesicles are chemicals suspended in fluid, which are molecules of substances called neurotransmitters. The name is simple enough—they are in ...
NERVOUS SYSTEM
NERVOUS SYSTEM

... ...
Regulation of thalamocortical axon branching by BDNF and synaptic vesicle cycling
Regulation of thalamocortical axon branching by BDNF and synaptic vesicle cycling

... have contributed equally to this work. ...
EVOLUTIONARY AUTONOMOUS AGENTS: A NEUROSCIENCE
EVOLUTIONARY AUTONOMOUS AGENTS: A NEUROSCIENCE

... on the basis of certain sensory stimuli16, and in particular, as in the EAA simulation, by food arousal17,18. This activity has been shown to control a variety of motor repertoires, mainly by inducing different activity patterns in the same network by modulating neuronal activity21,22 — again, in a ...
Transcranial Magnetic Stimulation: A Neuroscientific Probe of
Transcranial Magnetic Stimulation: A Neuroscientific Probe of

... Even then, selective stimulation of deep structures is currently not possible. Nevertheless, stimulation of subcortical regions of interest can be activated through transsynaptic action from stimulation of superficial cortical structures. A strength of TMS is that it can help establish causality, wh ...
Nervous System - Lakeridge Health
Nervous System - Lakeridge Health

... consciousness. Self-awareness and awareness of one’s environment may define the state of consciousness. One fact is clear; the excitation of cortical neurons by impulses conducted to them by the RAS is necessary for consciousness. The cerebral cortex cannot activate itself. Without continuous stimul ...
Advanced biomaterial strategies to transplant preformed micro
Advanced biomaterial strategies to transplant preformed micro

... to create tubular biomaterial micro-columns (less than half the diameter of a DBS lead) that allow for a well-controlled 3D environment with appropriate structural and chemical cues to support neuronal survival and their long distance axonal outgrowths in vitro. Our concept for nervous system repair ...
CNS - Algonquin College
CNS - Algonquin College

... consciousness. Self-awareness and awareness of one’s environment may define the state of consciousness. One fact is clear; the excitation of cortical neurons by impulses conducted to them by the RAS is necessary for consciousness. The cerebral cortex cannot activate itself. Without continuous stimul ...
Nervous Notes File
Nervous Notes File

...  You are born with all of the nerve cells you will ever ...
Corticothalamic feedback and sensory processing
Corticothalamic feedback and sensory processing

... Future studies that are aimed at understanding the functions served by corticothalamic feedback are likely to rely more heavily on experiments with alert animals performing behaviorally relevant tasks. These experiments are promising for two reasons. First, any concerns over anesthesia-dependent act ...
motor systems
motor systems

... cortical areas also participate of some kinematic and dynamic movement parameters. The non-primary motor areas appear more specialized, however, for selecting and controlling movements made in particular behavioral contexts, such as when the direction of a movement to be made must be remembered or w ...
David Hunter Hubel. 27 February 1926 — 22 September 2013
David Hunter Hubel. 27 February 1926 — 22 September 2013

... time of their experiments, there was little idea, much less experimental evidence, about how this reconstruction came about. What was known about the neuronal mechanisms of the cat retina was largely based on the investigations of Steve Kuffler on the output neurons of the retina, the ganglion cells ...
On acute gene expression changes after ventral root replantation
On acute gene expression changes after ventral root replantation

... system. Compared to avulsion without repair, ventral root replantation seems to rescue lesioned motoneurons from death. In this study we have analyzed the acute response to ventral root avulsion and replantation in adult rats with gene arrays combined with cluster analysis of gene ontology search te ...
Although people with the movies, narcolepsy
Although people with the movies, narcolepsy

... intriguingly, there are hints that narcolepsy might be an autoimmune disease, in which the immune system attacks normal brain tissue as foreign. This disorder has a number of extraordinary features. Besides cataplexy and sleepiness, two other classic symptoms are sleep paralysis and so-called hypnag ...
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Activity-dependent plasticity

A defining feature of the brain is its capacity to undergo changes based on activity-dependent functions, also called activity-dependent plasticity. Its ability to remodel itself forms the basis of the brain’s capacity to retain memories, improve motor function, and enhance comprehension and speech amongst other things. It is this trait to retain and form memories that is functionally linked to plasticity and therefore many of the functions individuals perform on a daily basis. This plasticity is the result of changed gene expression that occurs because of organized cellular mechanisms.The brain’s ability to adapt toward active functions has allowed humans to specialize in specific processes based on relative use and activity. For example, a right-handed person may perform any movement poorly with his/her left hand but continuous practice with the less dominant hand can make both hands just as able. Another example is if someone was born with a neurological disorder such as autism or had a stroke that resulted in a disorder, then they are capable of retrieving much of their lost function by practicing and “rewiring” the brain in order to incorporate these lost manners. Thanks to the pioneers within this field, many of these advances have become available to most people and many more will continue to arrive as new features of plasticity are discovered.
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