The use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leeches
The present manuscript aims at identifying patterns of electrical activity recorded from neurons of the leech nervous system, characterizing specific behaviors. When leeches are at rest, the electrical activity of neurons and motoneurons is poorly correlated. When leeches move their head and/or tail...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2013-09-01
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| Series: | Frontiers in Integrative Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnint.2013.00069/full |
| _version_ | 1818356662304505856 |
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| author | León Jacobo Juárez-Hernández Giacomo eBisson Vincent eTorre |
| author_facet | León Jacobo Juárez-Hernández Giacomo eBisson Vincent eTorre |
| author_sort | León Jacobo Juárez-Hernández |
| collection | DOAJ |
| description | The present manuscript aims at identifying patterns of electrical activity recorded from neurons of the leech nervous system, characterizing specific behaviors. When leeches are at rest, the electrical activity of neurons and motoneurons is poorly correlated. When leeches move their head and/or tail, in contrast, action potential (AP) firing becomes highly correlated. When the head or tail suckers detach, specific patterns of electrical activity are detected. During elongation and contraction the electrical activity of motoneurons in the Medial Anterior and Dorsal Posterior nerves increase respectively and several motoneurons are activated both during elongation and contraction. During crawling, swimming and pseudo-swimming patterns of electrical activity are better described by the dendrograms of cross-correlations of motoneurons pairs. Dendrograms obtained from different animals exhibiting the same behavior are similar and by averaging these dendrograms we obtained a template underlying a given behavior. By using this template, the corresponding behavior is reliably identified from the recorded electrical activity. The analysis of dendrograms during different leech behavior reveals the fine orchestration of motoneurons firing specific to each stereotyped behavior. Therefore, dendrograms capture the subtle changes in the correlation pattern of neuronal networks when they become involved in different tasks or functions. |
| first_indexed | 2024-12-13T20:00:46Z |
| format | Article |
| id | doaj.art-c8cae33f209c4059b3936ea8212a7715 |
| institution | Directory Open Access Journal |
| issn | 1662-5145 |
| language | English |
| last_indexed | 2024-12-13T20:00:46Z |
| publishDate | 2013-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Integrative Neuroscience |
| spelling | doaj.art-c8cae33f209c4059b3936ea8212a77152022-12-21T23:33:12ZengFrontiers Media S.A.Frontiers in Integrative Neuroscience1662-51452013-09-01710.3389/fnint.2013.0006954468The use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leechesLeón Jacobo Juárez-Hernández0Giacomo eBisson1Vincent eTorre2International School of Advanced Studies (ISAS-SISSA)International School of Advanced Studies (ISAS-SISSA)International School of Advanced Studies (ISAS-SISSA)The present manuscript aims at identifying patterns of electrical activity recorded from neurons of the leech nervous system, characterizing specific behaviors. When leeches are at rest, the electrical activity of neurons and motoneurons is poorly correlated. When leeches move their head and/or tail, in contrast, action potential (AP) firing becomes highly correlated. When the head or tail suckers detach, specific patterns of electrical activity are detected. During elongation and contraction the electrical activity of motoneurons in the Medial Anterior and Dorsal Posterior nerves increase respectively and several motoneurons are activated both during elongation and contraction. During crawling, swimming and pseudo-swimming patterns of electrical activity are better described by the dendrograms of cross-correlations of motoneurons pairs. Dendrograms obtained from different animals exhibiting the same behavior are similar and by averaging these dendrograms we obtained a template underlying a given behavior. By using this template, the corresponding behavior is reliably identified from the recorded electrical activity. The analysis of dendrograms during different leech behavior reveals the fine orchestration of motoneurons firing specific to each stereotyped behavior. Therefore, dendrograms capture the subtle changes in the correlation pattern of neuronal networks when they become involved in different tasks or functions.http://journal.frontiersin.org/Journal/10.3389/fnint.2013.00069/fullBehaviorleechelectrical activityCross-CovarianceDendrograms |
| spellingShingle | León Jacobo Juárez-Hernández Giacomo eBisson Vincent eTorre The use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leeches Frontiers in Integrative Neuroscience Behavior leech electrical activity Cross-Covariance Dendrograms |
| title | The use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leeches |
| title_full | The use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leeches |
| title_fullStr | The use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leeches |
| title_full_unstemmed | The use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leeches |
| title_short | The use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leeches |
| title_sort | use of dendrograms to describe the electrical activity of motoneurons underlying behaviors in leeches |
| topic | Behavior leech electrical activity Cross-Covariance Dendrograms |
| url | http://journal.frontiersin.org/Journal/10.3389/fnint.2013.00069/full |
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