FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2257842005> ?p ?o ?g. }

• W2257842005 abstract "Learning and memorizing past information are critical features of neural networks. Several models have been proposed to explain the storage and retrieval of different kinds of information [1,2] . These models differ in terms of the types of memories they can store, in terms of the time scales on which they operate, and in terms of the persistence of the stored information. In particular, there are neural models for the long-term memory (LTM) system [2] and other neural models for the working memory (WM) system [1]. While there are some controversies whether LTM and WM are realized by distinct brain regions, there is no doubt about the fact that these two systems are at the same time tightly coupled and interact continuously [3]. However, it is still widely unclear how this interaction is actually realized. Here, we demonstrate a model reproducing and explaining the interaction between LTM and WM such as to exploit the abilities and advantages of the individual components.WM is most probably realized in the prefrontal cortex (PFC). To capture the diverse dynamics observed in PFC during WM experiments, we choose to model WM by a reservoir computing network [4]. Basically, it consists of a large reservoir of randomly and recurrently connected neurons coupled to the input signals. Due to the huge variety of different signals present in the reservoir, these networks can serve as universal function approximators. However, the influence of past inputs fades away within time scales of seconds to minutes.The hippocampus, especially its CA3 area, is believed to play a major role in LTM formation on time scales of hours to days. We model its auto-associative capabilities by the well-known idea of cell assemblies [5]. According to this idea, declarative knowledge translates into correlations of neural activities which, in turn, lead to a potentiation of excitatory synapses. This process forms groups of highly interconnected neurons - named cell assemblies. If the synapses in a recurrent network are governed by Hebbian plasticity, cell assemblies emerge in an unsupervised manner based on correlations observed in the network input. Experimental findings indicate that rather abstract or general LTM knowledge does not depend on the hippocampus but is transferred to the medial prefrontal cortex (mPFC). In our model, the representations in the mPFC are the central interface between LTM and WM. It receives signals from both the cell-assembly as well as the reservoir network.Analyzing the capabilities and characteristics of the proposed system, we train the reservoir to perform certain arithmetic operations within different contexts. During operation, the cell assembly network learns to detect and remember associations between context signals and computed results. This enables the system to remember results of earlier calculations beyond the WM capacity and to reuse them for later tasks. Thus, the system is able to perform computations based on short-term memories of the operands as well as to overcome the limits of the short-term memory by storing computed results into the long-term memory and transferring them back for further usage." @default.
• W2257842005 created "2016-06-24" @default.
• W2257842005 creator A5023811677 @default.
• W2257842005 creator A5077182745 @default.
• W2257842005 creator A5084861593 @default.
• W2257842005 date "2015-12-01" @default.
• W2257842005 modified "2023-09-24" @default.
• W2257842005 title "Towards a biological plausible model of the interaction of long-term memory and working memory" @default.
• W2257842005 cites W2044401623 @default.
• W2257842005 cites W2096707172 @default.
• W2257842005 cites W2133804059 @default.
• W2257842005 cites W2171865010 @default.
• W2257842005 doi "https://doi.org/10.1186/1471-2202-16-s1-p254" @default.
• W2257842005 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4699129" @default.
• W2257842005 hasPublicationYear "2015" @default.
• W2257842005 type Work @default.
• W2257842005 sameAs 2257842005 @default.
• W2257842005 citedByCount "0" @default.
• W2257842005 crossrefType "journal-article" @default.
• W2257842005 hasAuthorship W2257842005A5023811677 @default.
• W2257842005 hasAuthorship W2257842005A5077182745 @default.
• W2257842005 hasAuthorship W2257842005A5084861593 @default.
• W2257842005 hasBestOaLocation W22578420051 @default.
• W2257842005 hasConcept C121332964 @default.
• W2257842005 hasConcept C135796866 @default.
• W2257842005 hasConcept C136197465 @default.
• W2257842005 hasConcept C14036430 @default.
• W2257842005 hasConcept C147168706 @default.
• W2257842005 hasConcept C154945302 @default.
• W2257842005 hasConcept C15744967 @default.
• W2257842005 hasConcept C165696696 @default.
• W2257842005 hasConcept C169760540 @default.
• W2257842005 hasConcept C169900460 @default.
• W2257842005 hasConcept C179226034 @default.
• W2257842005 hasConcept C180747234 @default.
• W2257842005 hasConcept C188147891 @default.
• W2257842005 hasConcept C21963081 @default.
• W2257842005 hasConcept C2781195155 @default.
• W2257842005 hasConcept C30038468 @default.
• W2257842005 hasConcept C38652104 @default.
• W2257842005 hasConcept C41008148 @default.
• W2257842005 hasConcept C50644808 @default.
• W2257842005 hasConcept C61797465 @default.
• W2257842005 hasConcept C62520636 @default.
• W2257842005 hasConcept C78458016 @default.
• W2257842005 hasConcept C86803240 @default.
• W2257842005 hasConceptScore W2257842005C121332964 @default.
• W2257842005 hasConceptScore W2257842005C135796866 @default.
• W2257842005 hasConceptScore W2257842005C136197465 @default.
• W2257842005 hasConceptScore W2257842005C14036430 @default.
• W2257842005 hasConceptScore W2257842005C147168706 @default.
• W2257842005 hasConceptScore W2257842005C154945302 @default.
• W2257842005 hasConceptScore W2257842005C15744967 @default.
• W2257842005 hasConceptScore W2257842005C165696696 @default.
• W2257842005 hasConceptScore W2257842005C169760540 @default.
• W2257842005 hasConceptScore W2257842005C169900460 @default.
• W2257842005 hasConceptScore W2257842005C179226034 @default.
• W2257842005 hasConceptScore W2257842005C180747234 @default.
• W2257842005 hasConceptScore W2257842005C188147891 @default.
• W2257842005 hasConceptScore W2257842005C21963081 @default.
• W2257842005 hasConceptScore W2257842005C2781195155 @default.
• W2257842005 hasConceptScore W2257842005C30038468 @default.
• W2257842005 hasConceptScore W2257842005C38652104 @default.
• W2257842005 hasConceptScore W2257842005C41008148 @default.
• W2257842005 hasConceptScore W2257842005C50644808 @default.
• W2257842005 hasConceptScore W2257842005C61797465 @default.
• W2257842005 hasConceptScore W2257842005C62520636 @default.
• W2257842005 hasConceptScore W2257842005C78458016 @default.
• W2257842005 hasConceptScore W2257842005C86803240 @default.
• W2257842005 hasLocation W22578420051 @default.
• W2257842005 hasLocation W22578420052 @default.
• W2257842005 hasLocation W22578420053 @default.
• W2257842005 hasLocation W22578420054 @default.
• W2257842005 hasOpenAccess W2257842005 @default.
• W2257842005 hasPrimaryLocation W22578420051 @default.
• W2257842005 hasRelatedWork W1600201879 @default.
• W2257842005 hasRelatedWork W2019818616 @default.
• W2257842005 hasRelatedWork W2026203218 @default.
• W2257842005 hasRelatedWork W2037675443 @default.
• W2257842005 hasRelatedWork W2041574177 @default.
• W2257842005 hasRelatedWork W2047215756 @default.
• W2257842005 hasRelatedWork W2051928575 @default.
• W2257842005 hasRelatedWork W2079351736 @default.
• W2257842005 hasRelatedWork W2080408188 @default.
• W2257842005 hasRelatedWork W2097586254 @default.
• W2257842005 hasRelatedWork W2124780821 @default.
• W2257842005 hasRelatedWork W2142736245 @default.
• W2257842005 hasRelatedWork W2143822179 @default.
• W2257842005 hasRelatedWork W2165206109 @default.
• W2257842005 hasRelatedWork W2231416193 @default.
• W2257842005 hasRelatedWork W2344600084 @default.
• W2257842005 hasRelatedWork W2414006382 @default.
• W2257842005 hasRelatedWork W3212470137 @default.
• W2257842005 hasRelatedWork W9631182 @default.
• W2257842005 hasRelatedWork W97471852 @default.
• W2257842005 isParatext "false" @default.
• W2257842005 isRetracted "false" @default.
• W2257842005 magId "2257842005" @default.
• W2257842005 workType "article" @default.