Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish
Recently, we reported evidence for a novel mechanism of peripheral sensory coding based on oscillatory synchrony. Spontaneously oscillating electroreceptors in weakly electric fish (Mormyridae) respond to electrosensory stimuli with a phase reset that results in transient synchrony across the recept...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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eLife Sciences Publications Ltd
2016-06-01
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| Series: | eLife |
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| Online Access: | https://elifesciences.org/articles/16851 |
| _version_ | 1811202624417955840 |
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| author | Alejandro Vélez Bruce A Carlson |
| author_facet | Alejandro Vélez Bruce A Carlson |
| author_sort | Alejandro Vélez |
| collection | DOAJ |
| description | Recently, we reported evidence for a novel mechanism of peripheral sensory coding based on oscillatory synchrony. Spontaneously oscillating electroreceptors in weakly electric fish (Mormyridae) respond to electrosensory stimuli with a phase reset that results in transient synchrony across the receptor population (Baker et al., 2015). Here, we asked whether the central electrosensory system actually detects the occurrence of synchronous oscillations among receptors. We found that electrosensory stimulation elicited evoked potentials in the midbrain exterolateral nucleus at a short latency following receptor synchronization. Frequency tuning in the midbrain resembled peripheral frequency tuning, which matches the intrinsic oscillation frequencies of the receptors. These frequencies are lower than those in individual conspecific signals, and instead match those found in collective signals produced by groups of conspecifics. Our results provide further support for a novel mechanism for sensory coding based on the detection of oscillatory synchrony among peripheral receptors. |
| first_indexed | 2024-04-12T02:41:55Z |
| format | Article |
| id | doaj.art-49ac714c8f0a42029a2e93f1acaed657 |
| institution | Directory Open Access Journal |
| issn | 2050-084X |
| language | English |
| last_indexed | 2024-04-12T02:41:55Z |
| publishDate | 2016-06-01 |
| publisher | eLife Sciences Publications Ltd |
| record_format | Article |
| series | eLife |
| spelling | doaj.art-49ac714c8f0a42029a2e93f1acaed6572022-12-22T03:51:18ZengeLife Sciences Publications LtdeLife2050-084X2016-06-01510.7554/eLife.16851Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fishAlejandro Vélez0Bruce A Carlson1https://orcid.org/0000-0002-2151-0443Department of Biology, Washington University in St. Louis, St. Louis, United StatesDepartment of Biology, Washington University in St. Louis, St. Louis, United StatesRecently, we reported evidence for a novel mechanism of peripheral sensory coding based on oscillatory synchrony. Spontaneously oscillating electroreceptors in weakly electric fish (Mormyridae) respond to electrosensory stimuli with a phase reset that results in transient synchrony across the receptor population (Baker et al., 2015). Here, we asked whether the central electrosensory system actually detects the occurrence of synchronous oscillations among receptors. We found that electrosensory stimulation elicited evoked potentials in the midbrain exterolateral nucleus at a short latency following receptor synchronization. Frequency tuning in the midbrain resembled peripheral frequency tuning, which matches the intrinsic oscillation frequencies of the receptors. These frequencies are lower than those in individual conspecific signals, and instead match those found in collective signals produced by groups of conspecifics. Our results provide further support for a novel mechanism for sensory coding based on the detection of oscillatory synchrony among peripheral receptors.https://elifesciences.org/articles/16851Mormyridaeelectrosensationweakly electric fishelectrosensory systemsensory system evolution |
| spellingShingle | Alejandro Vélez Bruce A Carlson Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish eLife Mormyridae electrosensation weakly electric fish electrosensory system sensory system evolution |
| title | Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish |
| title_full | Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish |
| title_fullStr | Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish |
| title_full_unstemmed | Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish |
| title_short | Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish |
| title_sort | detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish |
| topic | Mormyridae electrosensation weakly electric fish electrosensory system sensory system evolution |
| url | https://elifesciences.org/articles/16851 |
| work_keys_str_mv | AT alejandrovelez detectionoftransientsynchronyacrossoscillatingreceptorsbythecentralelectrosensorysystemofmormyridfish AT bruceacarlson detectionoftransientsynchronyacrossoscillatingreceptorsbythecentralelectrosensorysystemofmormyridfish |