Abstract：
:The question was investigated whether long-lasting transients of activity, observed to occur in the intact cerebral cortex (EEG slow (delta) waves and 'K' complexes) as well as in isolated tissues cultured in vitro, can also emerge in a model network of excitatory and inhibitory cells. We show that such transients can indeed occur even if the cells do not have built-in slow kinetics. For certain parameter settings, the network is in a bistable state in which periods of increased activity (long-lasting transients) alternate with minimal activity. Transients are triggered by spontaneously firing cells ('noise'), which, rather than via a build-up of recurrent synaptic inhibition, also initiate their termination. During a transient, the network continually makes transitions from one equilibrium to another as a result of spontaneous firing until it is switched back to the quiescent state, i.e., after a variable period of time of noise-induced transitions the transient is terminated. If the network is small, activity can terminate even without inhibition. In large networks, inhibition keeps the network sensitive to spontaneously firing cells by holding it in the neighbourhood of a critical point between active and quiescent state.
journal_name
Biol Cybernjournal_title
Biological cyberneticsauthors
van Ooyen A,van Pelt J,Corner MA,da Silva FHdoi
10.1007/BF00204400keywords:
subject
Has Abstractpub_date
1992-01-01 00:00:00pages
269-77issue
3eissn
0340-1200issn
1432-0770journal_volume
67pub_type
杂志文章abstract：:According to modern views of the cerebellum in motor control, each cerebellar functional unit, or microzone, learns how to execute predictive and coordinative control, based on long-term depression of the granule cell-Purkinje cell synapses. In the present paper, in light of recent experimental and theoretical studies...
journal_title：Biological cybernetics
pub_type： 杂志文章
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journal_title：Biological cybernetics
pub_type： 杂志文章
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journal_title：Biological cybernetics
pub_type： 杂志文章
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journal_title：Biological cybernetics
pub_type： 杂志文章
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更新日期：1997-08-01 00:00:00
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pub_type： 杂志文章
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s004220050335
更新日期：1997-03-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00652225
更新日期：1996-03-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-015-0653-7
更新日期：2015-10-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
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pub_type： 杂志文章
doi：10.1007/BF00340063
更新日期：1983-01-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00319980
更新日期：1982-01-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00203135
更新日期：1992-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s004220000169
更新日期：2000-09-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00422-002-0376-4
更新日期：2003-03-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00344396
更新日期：1983-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00422-020-00840-y
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00336981
更新日期：1985-01-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00365219
更新日期：1987-01-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章,评审
doi：10.1007/s00422-011-0451-9
更新日期：2011-07-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00354987
更新日期：1987-01-01 00:00:00
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pub_type： 杂志文章
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00336963
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doi：10.1007/s00422-012-0542-2
更新日期：2013-04-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00353957
更新日期：1982-01-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-010-0386-6
更新日期：2010-08-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-009-0319-4
更新日期：2009-08-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s00422-018-0746-1
更新日期：2018-06-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/s004220100284
更新日期：2002-01-01 00:00:00
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journal_title：Biological cybernetics
pub_type： 杂志文章
doi：10.1007/BF00338814
更新日期：1987-01-01 00:00:00
