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The Design and Function of Cochlear Implants
The Design and Function of Cochlear Implants

... millimeters of skin to a receiver/stimulator that has been surgically implanted in the temporal bone above the ear. The signals then pass to an array of electrodes inside the cochlea. Target cells in the spiral ganglion are separated from the electrodes by a bony partition. Scott N.’s device uses th ...
feature analyzers in the brain
feature analyzers in the brain

... RECOGNITION & LOCALIZATION OF PREDATORS & PREY ...
Ajna Light Theory and Science Guy Harriman June 2015 The Ajna
Ajna Light Theory and Science Guy Harriman June 2015 The Ajna

... DMT is naturally generated twice in the lifetime, at birth and again at death. It is responsible for allowing these potentially traumatic emotional life transition processes to happen gracefully. After a near death experience, one's full life flashes by, and a tunnel of light appears. Both of these ...
The Hippocampal-Entorhinal Complex performs Bayesian
The Hippocampal-Entorhinal Complex performs Bayesian

... offsets, meaning that a small number of them can cover an environment. Grid cells have also been suggested to play a major role in path integration, their activation being updated depending on the animal’s movement speed and direction [3, 4, 25, 26]. They seem to exist not only in mammals but also i ...
Physiology Ch 45 p543-557 [4-25
Physiology Ch 45 p543-557 [4-25

Basal Ganglia
Basal Ganglia

... cerebral cortex. They receive information from the frontal cortex about behavior that is being planned for a particular situation. In turn, the basal ganglia affect activity in the frontal cortex through a series of neural projections that ultimately go back up to the same cortical areas from which ...
What is Psychology?
What is Psychology?

... Why Do We Dream? • Rapid Eye Movement (REM) Sleep: Sleep periods characterized by fast eye movement behind closed eyelids, loss of muscle tone, and dreaming. • Activation-Synthesis Theory: Theory that dreaming results from cortical synthesis and interpretation of neural signals triggered by activit ...
What Are Emotional States, and Why Do We
What Are Emotional States, and Why Do We

... noxious stimuli. 4. Communication. Monkeys, for example, may communicate their emotional state to others, for instance by making face expressions (such as an open-mouth threat to indicate the extent to which they are willing to compete for resources), and this may influence the behaviour of other a ...
Why light
Why light

... The places were neurotransmitter substances get “dumped” and then have the potential to activate other neurons are called synapses. The word, synapse, means, roughly, neural gap. It is also used as a verb – meaning to connect with, neurally. “He went out last night and synapsed with some of his frie ...
File
File

... Second: there are receptors on the pre-synaptic as well as the post-synaptic elements for many secreted transmitter. These (pre-synaptic receptors or auto-receptors) often inhibit further secretion of the ligand, providing feedback control. Third: although there are many ligands and many sub-types o ...
to a  of the units.
to a of the units.

... which controls movement, sensory processing, and thinking. The cortex (meaning ‘bark’ in Latin) is only about 2-3 mm thick. The ‘wrinkles’ on the cortex are called gyri (pronounced jie-rye), which is Latin for ‘roll’ or ‘fold’. One such roll is called a gyrus. The grooves between the gyri are called ...
Autistic-Spectrum-Disorders-Current
Autistic-Spectrum-Disorders-Current

... With autism: No desynchronization • Inversion of the pattern of hemispheric activation was found in autistic children • ↑ cortical activity RT hemisphere posteriorly, including the centro-parietal and temporo-occipital ...
Letter to Neuroscience
Letter to Neuroscience

... It would appear that directional information is particularly critical for a rat (and other species) when engaged in locomotor/exploratory behaviors and less so during non-locomotor activities such as grooming or consumatory acts. Accordingly, theta may serve as an important signal involved in the di ...
Hypocretinergic Neurons are Primarily involved in Activation
Hypocretinergic Neurons are Primarily involved in Activation

... restless legs syndrome, which is characterized by irresistible leg movements, there is an increase in CSF levels of hypocretin.36 In addition, as we have shown in the present report, during QS, which is a quiescent motor state, there is practically no activation of hypocretinergic neurons. This latt ...
PathophysiologyofPain23
PathophysiologyofPain23

... Adapted with permission from Cooper BY, et al. Pain. 1986;24:103 and from Lee KH, et al. In: Fields HL, Dubner R, Cervero F, eds. Proceedings of the Fourth World Congress on Pain. New York, NY: Raven Press; 1985:204. ...
Pathophysiology of Pain
Pathophysiology of Pain

... Adapted with permission from Cooper BY, et al. Pain. 1986;24:103 and from Lee KH, et al. In: Fields HL, Dubner R, Cervero F, eds. Proceedings of the Fourth World Congress on Pain. New York, NY: Raven Press; 1985:204. ...
Nature 402
Nature 402

... wires(50μm in diameter), and were positioned in the PFC for recording and in the amygdala for lesion respectively. • The behavior of mice was observed using a video camera monitor system. ...
mechanisms of neurotransmitter receptor biogenesis and trafficking
mechanisms of neurotransmitter receptor biogenesis and trafficking

... little is known. For example, we now know that GABA is found in the endoplasmic reticulum. We do not know how it gets inside this cell organelle but assume it is transported there by a protein. Because it has been known for decades that GABA is present inside mitochondria, a cell organelle involved ...
Decoding the Contents of Visual Short
Decoding the Contents of Visual Short

... exercise of the similarity task without any memory demand to make sure and Tong, 2009), with the not-remembered sample serving as a control. that participants understood the instructions and were able to execute The retro-cue was presented on top of a colored pattern mask that was the task. The actu ...
Brain activity during non-automatic motor production of discrete multi
Brain activity during non-automatic motor production of discrete multi

... periods between the visual instruction and response were B3 s longer during TIME than during PRESSURE, hence set related and buildup neurones were probably active for longer periods in the former. This inequality could have contributed to the extent of activity shown in medial premotor region as a r ...
lecture #6
lecture #6

... measured across the membrane of a cell • resting membrane potential = membrane potential of a neuron measured when it is unstimulated – results from the build-up of negative ions in the cytosol along the inside of the neuron’s PM – the outside of the PM becomes more positive – this difference in cha ...
File - thebiotutor.com
File - thebiotutor.com

... Cerebellum and Muscle Tone The cerebellum has neural connections with other parts of the brain and the peripheral parts of the body. So at any given moment it continuously receives sensory information from the bones, joints and muscles about their position, rate and direction of movement and forces ...
The Nervous System
The Nervous System

... living human brains—and showing an astonishing level of detail about learning, emotions, and memory. Chief among these harmless techniques is functional magnetic resonance imaging, or fMRI. Regular MRI shows the location of soft tissue; fMRI tracks the movement of glucose through the brain. Because ...
A simultaneous ERP/fMRI investigation of the P300 aging effect
A simultaneous ERP/fMRI investigation of the P300 aging effect

... this regard. EEG traces cortical neural activity with finegrained temporal accuracy (in the order of milliseconds) but allows only limited inferences to be drawn regarding underlying generators, especially when multiple generators are simultaneously activated. In direct contrast, fMRI provides a sop ...
File
File

... In the CNS, the myelin sheath is formed by _____________________________________________. o One ________________________________________ forms the myelin sheath for ________________________________________. o The nucleus is located _____________ from the myelin sheath and outward ___________________ ...
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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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