Neuronal correlates of the serotonin-dependent behavior of the pteropod mollusc Clione limacina
Identifieur interne : 000787 ( Main/Exploration ); précédent : 000786; suivant : 000788Neuronal correlates of the serotonin-dependent behavior of the pteropod mollusc Clione limacina
Auteurs : A. Kabotyanskii [Russie] ; A. Sakharov [Russie]Source :
- Neuroscience and Behavioral Physiology [ 0097-0549 ] ; 1991-09-01.
Abstract
Abstract: A pharmacological model of hunting behavior, previously developed by the authors on the basis of the utilization of 5-hydroxytryptophan (5-HTP), a precursor of serotonin synthesis (5-IIT), was employed in order to determine its cytochemical and neurophysiological correlates. In the presence of baseline behavior, 5-HT-containing neurons were not detected by the glyoxylate method, but they were readily identified in the buccal, cerebral, and pedal (the greatest number) ganglia of the CNS and in the peripheral organs during hunting behavior induced by an injection of 5-HTP (100–200 μ/g). The disappearance of pauses in the initial unsustained fictive swimming, an increase in the frequency of the rhythm of swimming and in the generation of spikes in each cycle, as well as a change in the phasing of the locomotor cycle, the neurophysiological correlates of “fast” locomotion in the presence of 5-HTP-induced hunting behavior, were recorded in isolated pedal ganglia in the presence of 5-HTP (100–200 μ/ml). The activity of 5-HT-neurons of the pedal ganglia, which was initially synchronized with the episodes of swimming, increases against the background of 5-HTP and becomes continuous. The effects of exogenous and endogenous 5-HT on the generator of locomotion are identical, and are induced by the direct action of the mediator on the membrane of the locomotor neurons. The hypothesis of the participation of 5-HT in the monoaminergic control of behavior is discussed.
Url:
DOI: 10.1007/BF01200277
Affiliations:
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Kabotyanskii</name><affiliation wicri:level="3"><country>Russie</country><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName><wicri:orgArea>N. K. Kol'tsov Institute of Developmental Biology, Academy of Sciences of the USSR</wicri:orgArea></affiliation></author><author><name sortKey="Sakharov, A" sort="Sakharov, A" uniqKey="Sakharov A" first="A." last="Sakharov">A. Sakharov</name><affiliation wicri:level="3"><country>Russie</country><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName><wicri:orgArea>N. K. Kol'tsov Institute of Developmental Biology, Academy of Sciences of the USSR</wicri:orgArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Neuroscience and Behavioral Physiology</title><title level="j" type="abbrev">Neurosci Behav Physiol</title><idno type="ISSN">0097-0549</idno><idno type="eISSN">1573-899X</idno><imprint><publisher>Kluwer Academic Publishers-Plenum Publishers</publisher><pubPlace>New York</pubPlace><date type="published" when="1991-09-01">1991-09-01</date><biblScope unit="volume">21</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="page" from="422">422</biblScope><biblScope unit="page" to="435">435</biblScope></imprint><idno type="ISSN">0097-0549</idno></series><idno type="istex">4DDC34A483BA24BB4D3660733FE022F10F152EE0</idno><idno type="DOI">10.1007/BF01200277</idno><idno type="ArticleID">BF01200277</idno><idno type="ArticleID">Art7</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0097-0549</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: A pharmacological model of hunting behavior, previously developed by the authors on the basis of the utilization of 5-hydroxytryptophan (5-HTP), a precursor of serotonin synthesis (5-IIT), was employed in order to determine its cytochemical and neurophysiological correlates. In the presence of baseline behavior, 5-HT-containing neurons were not detected by the glyoxylate method, but they were readily identified in the buccal, cerebral, and pedal (the greatest number) ganglia of the CNS and in the peripheral organs during hunting behavior induced by an injection of 5-HTP (100–200 μ/g). The disappearance of pauses in the initial unsustained fictive swimming, an increase in the frequency of the rhythm of swimming and in the generation of spikes in each cycle, as well as a change in the phasing of the locomotor cycle, the neurophysiological correlates of “fast” locomotion in the presence of 5-HTP-induced hunting behavior, were recorded in isolated pedal ganglia in the presence of 5-HTP (100–200 μ/ml). The activity of 5-HT-neurons of the pedal ganglia, which was initially synchronized with the episodes of swimming, increases against the background of 5-HTP and becomes continuous. The effects of exogenous and endogenous 5-HT on the generator of locomotion are identical, and are induced by the direct action of the mediator on the membrane of the locomotor neurons. The hypothesis of the participation of 5-HT in the monoaminergic control of behavior is discussed.</div></front></TEI><affiliations><list><country><li>Russie</li></country><region><li>District fédéral central</li></region><settlement><li>Moscou</li></settlement></list><tree><country name="Russie"><region name="District fédéral central"><name sortKey="Kabotyanskii, A" sort="Kabotyanskii, A" uniqKey="Kabotyanskii A" first="A." last="Kabotyanskii">A. Kabotyanskii</name></region><name sortKey="Sakharov, A" sort="Sakharov, A" uniqKey="Sakharov A" first="A." last="Sakharov">A. Sakharov</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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