Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Quick Search
My eDoc
Session History
Support Wiki
Direct access to
document ID:

          Institute: MPI für Dynamik und Selbstorganisation     Collection: Nichtlineare Dynamik     Display Documents

ID: 673696.0, MPI für Dynamik und Selbstorganisation / Nichtlineare Dynamik
Compositionality in Neural Control: An Interdisciplinary Study of Scribbling Movements in Primates
Authors:Abeles, Moshe; Diesmann, Markus; Flash, Tamar; Geisel, Theo; Herrmann, J. Michael; Teicher, Mina
Date of Publication (YYYY-MM-DD):2013-09-12
Title of Journal:Frontiers in Computational Neuroscience
Sequence Number of Article:103
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:This article discusses the compositional structure of hand movements by analyzing and modeling neural and behavioral data obtained from experiments where a monkey (Macaca fascicularis) performed scribbling movements induced by a search task. Using geometrically based approaches to movement segmentation, it is shown that the hand trajectories are composed of elementary segments that are primarily parabolic in shape. The segments could be categorized into a small number of classes on the basis of decreasing intra-class variance over the course of training. A separate classification of the neural data employing a hidden Markov model showed a coincidence of the neural states with the behavioral categories. An additional analysis of both types of data by a data mining method provided evidence that the neural activity patterns underlying the behavioral primitives were formed by sets of specific and precise spike patterns. A geometric description of the movement trajectories, together with precise neural timing data indicates a compositional variant of a realistic synfire chain model. This model reproduces the typical shapes and temporal properties of the trajectories; hence the structure and composition of the primitives may reflect meaningful behavior.
External Publication Status:published
Document Type:Article
Communicated by:Folkert Müller-Hoissen
Affiliations:MPI für Dynamik und Selbstorganisation/Nichtlineare Dynamik
External Affiliations:Gonda Brain Research Center, Bar Ilan University, Ramat Gan, Israel
Department of Physiology, The Hebrew University of Jerusalem, Jerusalem, Israel
Institute of Neuroscience and Medicine (INM 6), Research Center Jülich, Jülich, Germany
Department of Applied Mathematics and Computer Science, Weizmann Institute of Science, Rehovot, Israel
IPAB, School of Informatics, University of Edinburgh, Edinburgh, UK
Emmy Noether Institute for Mathematics, Bar Ilan University, Ramat Gan, Israel
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.