Common control principles of basal ganglia - thalamocortical loops and the hippocampus

Research output: Contribution to journalArticle

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Abstract

The learning features of the hippocampal formation and the basal ganglia - thalamocortical loops are analyzed on the basis of their recent models utilizing control concepts for both architectures. According to the model of the trisynaptic loop of the hippocampus independent components of long term memory are trained by this loop and during the consolidation of these memories they are temporally locked by the same loop. Temporal locking, or temporal compensation, is achieved by control means. It is further argued that the control signal develops statistically independent components, important for goal oriented systems since independent components promote generalization and higher order concept formation. The control model of the basal ganglia - thalamocortical loops - is based on a similar architecture. It exhibits global stability and on-line tunability if certain structural conditions are met. It is argued that skill learning forms a hierarchy that first identifies `sign-proper' feedback channels and then tunes these channels. These channels can control and can also serve as error feedback correcting means for an external motor programme generator. The possibility of skill learning for hippocampal subjects is discussed.

Original languageEnglish
Pages (from-to)649-677
Number of pages29
JournalNeural Network World
Volume7
Issue number6
Publication statusPublished - 1997

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Basal Ganglia
Hippocampus
Learning
Concept Formation
Long-Term Memory
Feedback
Data storage equipment
Automatic programming
Consolidation

ASJC Scopus subject areas

  • Software

Cite this

Common control principles of basal ganglia - thalamocortical loops and the hippocampus. / Lőrincz, A.

In: Neural Network World, Vol. 7, No. 6, 1997, p. 649-677.

Research output: Contribution to journalArticle

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