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Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information
We present an extension of a neurobiologically inspired robotics model, termed CoRLEGO (Choice reaching with a LEGO arm robot). CoRLEGO models experimental evidence from choice reaching tasks (CRT). In a CRT participants are asked to rapidly reach and touch an item presented on the screen. These exp...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Pergamon Press
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4681879/ https://www.ncbi.nlm.nih.gov/pubmed/26667353 http://dx.doi.org/10.1016/j.neunet.2015.10.005 |
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author | Strauss, Soeren Woodgate, Philip J.W. Sami, Saber A. Heinke, Dietmar |
author_facet | Strauss, Soeren Woodgate, Philip J.W. Sami, Saber A. Heinke, Dietmar |
author_sort | Strauss, Soeren |
collection | PubMed |
description | We present an extension of a neurobiologically inspired robotics model, termed CoRLEGO (Choice reaching with a LEGO arm robot). CoRLEGO models experimental evidence from choice reaching tasks (CRT). In a CRT participants are asked to rapidly reach and touch an item presented on the screen. These experiments show that non-target items can divert the reaching movement away from the ideal trajectory to the target item. This is seen as evidence attentional selection of reaching targets can leak into the motor system. Using competitive target selection and topological representations of motor parameters (dynamic neural fields) CoRLEGO is able to mimic this leakage effect. Furthermore if the reaching target is determined by its colour oddity (i.e. a green square among red squares or vice versa), the reaching trajectories become straighter with repetitions of the target colour (colour streaks). This colour priming effect can also be modelled with CoRLEGO. The paper also presents an extension of CoRLEGO. This extension mimics findings that transcranial direct current stimulation (tDCS) over the motor cortex modulates the colour priming effect (Woodgate et al., 2015). The results with the new CoRLEGO suggest that feedback connections from the motor system to the brain’s attentional system (parietal cortex) guide visual attention to extract movement-relevant information (i.e. colour) from visual stimuli. This paper adds to growing evidence that there is a close interaction between the motor system and the attention system. This evidence contradicts the traditional conceptualization of the motor system as the endpoint of a serial chain of processing stages. At the end of the paper we discuss CoRLEGO’s predictions and also lessons for neurobiologically inspired robotics emerging from this work. |
format | Online Article Text |
id | pubmed-4681879 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Pergamon Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-46818792016-01-11 Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information Strauss, Soeren Woodgate, Philip J.W. Sami, Saber A. Heinke, Dietmar Neural Netw 2015 Special Issue We present an extension of a neurobiologically inspired robotics model, termed CoRLEGO (Choice reaching with a LEGO arm robot). CoRLEGO models experimental evidence from choice reaching tasks (CRT). In a CRT participants are asked to rapidly reach and touch an item presented on the screen. These experiments show that non-target items can divert the reaching movement away from the ideal trajectory to the target item. This is seen as evidence attentional selection of reaching targets can leak into the motor system. Using competitive target selection and topological representations of motor parameters (dynamic neural fields) CoRLEGO is able to mimic this leakage effect. Furthermore if the reaching target is determined by its colour oddity (i.e. a green square among red squares or vice versa), the reaching trajectories become straighter with repetitions of the target colour (colour streaks). This colour priming effect can also be modelled with CoRLEGO. The paper also presents an extension of CoRLEGO. This extension mimics findings that transcranial direct current stimulation (tDCS) over the motor cortex modulates the colour priming effect (Woodgate et al., 2015). The results with the new CoRLEGO suggest that feedback connections from the motor system to the brain’s attentional system (parietal cortex) guide visual attention to extract movement-relevant information (i.e. colour) from visual stimuli. This paper adds to growing evidence that there is a close interaction between the motor system and the attention system. This evidence contradicts the traditional conceptualization of the motor system as the endpoint of a serial chain of processing stages. At the end of the paper we discuss CoRLEGO’s predictions and also lessons for neurobiologically inspired robotics emerging from this work. Pergamon Press 2015-12 /pmc/articles/PMC4681879/ /pubmed/26667353 http://dx.doi.org/10.1016/j.neunet.2015.10.005 Text en Crown Copyright © Published by Elsevier Ltd. All rights reserved. http://creativecommons.org/licenses/by/4.0/ This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | 2015 Special Issue Strauss, Soeren Woodgate, Philip J.W. Sami, Saber A. Heinke, Dietmar Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information |
title | Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information |
title_full | Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information |
title_fullStr | Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information |
title_full_unstemmed | Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information |
title_short | Choice reaching with a LEGO arm robot (CoRLEGO): The motor system guides visual attention to movement-relevant information |
title_sort | choice reaching with a lego arm robot (corlego): the motor system guides visual attention to movement-relevant information |
topic | 2015 Special Issue |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4681879/ https://www.ncbi.nlm.nih.gov/pubmed/26667353 http://dx.doi.org/10.1016/j.neunet.2015.10.005 |
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