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  2. Hebbian theory - Wikipedia

    en.wikipedia.org/wiki/Hebbian_theory

    Hebbian theory is a neuropsychological theory claiming that an increase in synaptic efficacy arises from a presynaptic cell 's repeated and persistent stimulation of a postsynaptic cell. It is an attempt to explain synaptic plasticity, the adaptation of brain neurons during the learning process. It was introduced by Donald Hebb in his 1949 book ...

  3. Long-term potentiation - Wikipedia

    en.wikipedia.org/wiki/Long-term_potentiation

    Long-term potentiation (LTP) is a persistent increase in synaptic strength following high-frequency stimulation of a chemical synapse. Studies of LTP are often carried out in slices of the hippocampus, an important organ for learning and memory. In such studies, electrical recordings are made from cells and plotted in a graph such as this one.

  4. Attention Is All You Need - Wikipedia

    en.wikipedia.org/wiki/Attention_Is_All_You_Need

    For many years, sequence modelling and generation was done by using plain recurrent neural networks (RNNs). A well-cited early example was the Elman network (1990). In theory, the information from one token can propagate arbitrarily far down the sequence, but in practice the vanishing-gradient problem leaves the model's state at the end of a long sentence without precise, extractable ...

  5. Sensitization - Wikipedia

    en.wikipedia.org/wiki/Sensitization

    Sensitization is a non-associative learning process in which repeated administration of a stimulus results in the progressive amplification of a response. [1] Sensitization often is characterized by an enhancement of response to a whole class of stimuli in addition to the one that is repeated. For example, repetition of a painful stimulus may ...

  6. Network neuroscience - Wikipedia

    en.wikipedia.org/wiki/Network_neuroscience

    Network neuroscience is an approach to understanding the structure and function of the human brain through an approach of network science, through the paradigm of graph theory. [1] A network is a connection of many brain regions that interact with each other to give rise to a particular function. [2] Network Neuroscience is a broad field that ...

  7. Long-term memory - Wikipedia

    en.wikipedia.org/wiki/Long-term_memory

    Long-term memory (LTM) is the stage of the Atkinson–Shiffrin memory model in which informative knowledge is held indefinitely. It is defined in contrast to sensory memory, the initial stage, and short-term or working memory, the second stage, which persists for about 18 to 30 seconds. LTM is grouped into two categories known as explicit ...

  8. Pathophysiology of nerve entrapment - Wikipedia

    en.wikipedia.org/wiki/Pathophysiology_of_nerve...

    The median/ulnar nerves move 7.3mm and 9.8mm during elbow flexion and extension at the elbow. The median nerve moves 9.6mm with wrist flexion and extension. [2] This nerve movement also applies to the spinal nerves, which can stretch and slacken with movement of the spine. [4] This nerve gliding happens at intraneurial and extraneurial tissue ...

  9. Neural pathway - Wikipedia

    en.wikipedia.org/wiki/Neural_pathway

    A neural pathway connects one part of the nervous system to another using bundles of axons called tracts. The optic tract that extends from the optic nerve is an example of a neural pathway because it connects the eye to the brain; additional pathways within the brain connect to the visual cortex. In neuroanatomy, a neural pathway is the ...

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