Comparison of Synchronization Indices: Behavioral Study
The synchronization of a neuronal response to a given periodic stimulus is usually measured by Goldberg and Brown's vector strength metric. This index does not take omitted spikes into account. This particular limitation has motivated the development of two new indices: the corrected vector...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Online Access: | http://dx.doi.org/10.1155/2009/510235 |
| _version_ | 1811295337159065600 |
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| author | Pierre Dugué Régine Le Bouquin-Jeannès Gérard Faucon |
| author_facet | Pierre Dugué Régine Le Bouquin-Jeannès Gérard Faucon |
| author_sort | Pierre Dugué |
| collection | DOAJ |
| description | The synchronization of a neuronal response to a given periodic stimulus is usually measured by Goldberg and Brown's vector strength metric. This index does not take omitted spikes into account. This particular limitation has motivated the development of two new indices: the corrected vector strength index and the corrected phase variance index, both including a penalty factor linked to the firing rate. In this paper, a theoretical study on the normalization of the corrected phase variance index is conducted. Both indices are compared to four existing ones using a simulated dataset which considers three desynchronizing disturbances: irregularity in firing, added spikes, and omitted spikes. In the case of unimodal responses, the two new indices are satisfying and appear the more promising in the case of real signals. In the multimodal case, the entropy-based index is better than the others even if this index is not drawback-free. |
| first_indexed | 2024-04-13T05:31:54Z |
| format | Article |
| id | doaj.art-2287575a3c54437d98e0b3db635f12f3 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-04-13T05:31:54Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-2287575a3c54437d98e0b3db635f12f32022-12-22T03:00:24ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802009-01-01200910.1155/2009/510235Comparison of Synchronization Indices: Behavioral StudyPierre DuguéRégine Le Bouquin-JeannèsGérard FauconThe synchronization of a neuronal response to a given periodic stimulus is usually measured by Goldberg and Brown's vector strength metric. This index does not take omitted spikes into account. This particular limitation has motivated the development of two new indices: the corrected vector strength index and the corrected phase variance index, both including a penalty factor linked to the firing rate. In this paper, a theoretical study on the normalization of the corrected phase variance index is conducted. Both indices are compared to four existing ones using a simulated dataset which considers three desynchronizing disturbances: irregularity in firing, added spikes, and omitted spikes. In the case of unimodal responses, the two new indices are satisfying and appear the more promising in the case of real signals. In the multimodal case, the entropy-based index is better than the others even if this index is not drawback-free.http://dx.doi.org/10.1155/2009/510235 |
| spellingShingle | Pierre Dugué Régine Le Bouquin-Jeannès Gérard Faucon Comparison of Synchronization Indices: Behavioral Study EURASIP Journal on Advances in Signal Processing |
| title | Comparison of Synchronization Indices: Behavioral Study |
| title_full | Comparison of Synchronization Indices: Behavioral Study |
| title_fullStr | Comparison of Synchronization Indices: Behavioral Study |
| title_full_unstemmed | Comparison of Synchronization Indices: Behavioral Study |
| title_short | Comparison of Synchronization Indices: Behavioral Study |
| title_sort | comparison of synchronization indices behavioral study |
| url | http://dx.doi.org/10.1155/2009/510235 |
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