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Connectionist Models: Basics
Connectionist Models: Basics

... 5) remember clothes worn by the people 6) remember position of people and objects 7) estimate how long the “unexpected visitor” has been away from family ...
fMRI of speech and language
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Ch 48-49 Reading Guide
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Roger Sperry`s Classic Experiment (1940`s)
Roger Sperry`s Classic Experiment (1940`s)

... Frog behavior:  Dangle a lure frog will grab it with its  tongue. ...


... persistent firing, it could be re-elicited for as long as the recording was maintained. The plateau potential that sustained persistent firing displayed very pronounced voltage dependence. When stimuli of equivalent strength were presented from increasingly negative resting levels, plateau-potential ...
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... Not all patients with this form of amnesia are unable form new explicit long-term memories, as was the case with H.M. ...
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Recovery of consciousness after brain injury: a mesocircuit hypothesis

... include recovery past the level of severe disability even for patients who remain in MCS for greater than 6 months or a year. Rare cases that demonstrate endpoints of very late recovery from MCS are documented including reemergence of higher functional levels of spoken conversation, autobiographical ...
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similar cortical mechanisms for perceptual and motor learning

... similar ‘hardware’ – neurons and synapses – they must have close analogies at the level of implementation. However, the issue is whether those similarities extend to the algorithmic level. Such similarities would simplify the interaction between sensory and motor systems, but have neuroscientists ob ...
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Excitatory amino acid receptors

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Investigating - The Biotechnology Institute

... synapse–as a signal is passed between the neurons. Initially, neurons have an electrical “charge”–like a battery. This charge is caused by the accumulation of different ions (atoms with a positive or negative charge) on the inside and outside of the neuron. When neurons are in a resting state (not s ...
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... differences are in the field parameters, which are overlapping by default, and the existence of inhibitory synapses between the three neurons. These synapses are part of a system known as lateral inhibition, in which neighboring receptive fields can often turn each other off in order to increase con ...
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... *A placebo might reduce stress, allowing the body to regain some natural, optimum level called health. *Special molecules may exist that help carry out placebo responses. For example, a recent study found that stressed animals can produce a valium-like substance in their brains, but only if they hav ...
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Sensorimotor Neural Plasticity following Hand Transplantation

... motor and sensory neurons can abruptly reinnervate onto organs that were not the original target organs even though it is a different function and territory. The result of this abrupt reinnervation can be an abnormal pattern of input or output activity that is shown in the cortical maps. The cortica ...
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The relationship between heart-brain dynamics, positive emotions

... This presentation will discuss the background and overview of clinical and behavioral outcome results of a new approach to self-regulation and stress management that has a wide range of health enhancement applications. These include improved access to intuition and cognitive functioning such as focu ...
kainic acid oxidative stress J Appl Toxicol 2001
kainic acid oxidative stress J Appl Toxicol 2001

... seems that hypothalamus, striatum and cerebral cortex are resistant to KA-induced oxidative injury. The mechanisms underlying this highly region-specific pattern of oxidative damage are far from being well understood. In an attempt to explain, at least partially, this selective pattern of oxidative ...
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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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