FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1977029579> ?p ?o ?g. }

• W1977029579 endingPage "168" @default.
• W1977029579 startingPage "159" @default.
• W1977029579 abstract "1. The question was addressed what effects do some neurotransmitters exert upon the ongoing compound activity of an organized invertebrate ganglion, such as the visceral ganglion of the gastropod mollusc, Helix, recorded with extracellular semimicroelectrodes in the neuropile, avoiding dominating single units. 2. Methods of analysis based on systems theory are used: the electrical activity of the snail brain is considered to be a summation of different measurable variables or subsystems (in this case, frequency components). Frequency components were analyzed by the Fourier transform and, for quantification of each component, root-mean-square (RMS)-voltage of digitally filtered signals. 3. Spontaneous discharge of the untreated ganglion shows RMS-voltage of less than 10 microV in the 1-50 Hz range, most frequently 3-7 microV. Energy extended far above 50 Hz, with less decline than in vertebrates, but was quantified only up to 80 Hz due to the wider fluctuations of RMS-voltage in the range greater than 50 Hz. 4. ACh (10(-5)-10(-3) M) induces strong, dose-related increase of activity with spontaneous frequency responses in a broad band between 2 and 20 Hz which accompany fluctuations of minor peakings frequently centering at 2-4, 4-8, 9-15 and 20 Hz. These frequency centers still remain but as an impression since a statistical study on the reality and position of the peaks has not yet been done. ACh-induced excitation seems to be rather transient: all frequency components except the 4-8 Hz component decrease within 4-6 min. 5. DA (10(-4)-10(-3) M) induces a dose-related increase in the low frequency range (1-15 Hz) which reaches a maximum within 4 min and remains relatively unchanged for as long as 10 min. 6. NA (10(-5)-10(-2) M) mainly depresses the ganglionic activity, though moderately, reducing all components (-25%). The action of NA on the Helix ganglion seems to incline more towards inhibition of firing than towards excitation, especially depressing the 15-48 Hz activity, whereas that on the mammalian brain is known to be enhancement of alpha (8-13 Hz)- and beta (15-30 Hz)-activities. 7. The activities observed in the present investigation at several lower frequency power peaks are also commonly found in the electrograms of vertebrates and the EEG of higher animals. The manner, in which ACh and DA influence these peaks in Helix pomatia, are very similar to what has been reported on the EEG of mammals.(ABSTRACT TRUNCATED AT 400 WORDS)" @default.
• W1977029579 created "2016-06-24" @default.
• W1977029579 creator A5013126474 @default.
• W1977029579 creator A5048736254 @default.
• W1977029579 creator A5058681152 @default.
• W1977029579 date "1992-05-01" @default.
• W1977029579 modified "2023-09-26" @default.
• W1977029579 title "The effects of acetylcholine, dopamine and noradrenaline on the visceral ganglion of Helix pomatia—I. Ongoing compound field potentials of low frequencies" @default.
• W1977029579 cites W1556630129 @default.
• W1977029579 cites W1910258660 @default.
• W1977029579 cites W1971512811 @default.
• W1977029579 cites W1977610876 @default.
• W1977029579 cites W1984797774 @default.
• W1977029579 cites W1991696619 @default.
• W1977029579 cites W2001766383 @default.
• W1977029579 cites W2007777365 @default.
• W1977029579 cites W2008522792 @default.
• W1977029579 cites W2014601836 @default.
• W1977029579 cites W2015922388 @default.
• W1977029579 cites W2019807868 @default.
• W1977029579 cites W2029333776 @default.
• W1977029579 cites W2037292108 @default.
• W1977029579 cites W2041163957 @default.
• W1977029579 cites W2044270305 @default.
• W1977029579 cites W2044447895 @default.
• W1977029579 cites W2049289902 @default.
• W1977029579 cites W2057767213 @default.
• W1977029579 cites W2063042968 @default.
• W1977029579 cites W2065264370 @default.
• W1977029579 cites W2068684688 @default.
• W1977029579 cites W2074412543 @default.
• W1977029579 cites W2079173805 @default.
• W1977029579 cites W2083720607 @default.
• W1977029579 cites W2085549887 @default.
• W1977029579 cites W2093617918 @default.
• W1977029579 cites W2100270839 @default.
• W1977029579 cites W2120861502 @default.
• W1977029579 cites W2150786034 @default.
• W1977029579 cites W2169230922 @default.
• W1977029579 cites W2285935807 @default.
• W1977029579 cites W2330237814 @default.
• W1977029579 cites W2418820825 @default.
• W1977029579 cites W93629758 @default.
• W1977029579 doi "https://doi.org/10.1016/0742-8413(92)90058-f" @default.
• W1977029579 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/1358519" @default.
• W1977029579 hasPublicationYear "1992" @default.
• W1977029579 type Work @default.
• W1977029579 sameAs 1977029579 @default.
• W1977029579 citedByCount "9" @default.
• W1977029579 countsByYear W19770295792013 @default.
• W1977029579 countsByYear W19770295792014 @default.
• W1977029579 countsByYear W19770295792016 @default.
• W1977029579 countsByYear W19770295792020 @default.
• W1977029579 crossrefType "journal-article" @default.
• W1977029579 hasAuthorship W1977029579A5013126474 @default.
• W1977029579 hasAuthorship W1977029579A5048736254 @default.
• W1977029579 hasAuthorship W1977029579A5058681152 @default.
• W1977029579 hasConcept C104892082 @default.
• W1977029579 hasConcept C117838684 @default.
• W1977029579 hasConcept C121332964 @default.
• W1977029579 hasConcept C12554922 @default.
• W1977029579 hasConcept C1276947 @default.
• W1977029579 hasConcept C134018914 @default.
• W1977029579 hasConcept C169760540 @default.
• W1977029579 hasConcept C185263204 @default.
• W1977029579 hasConcept C185592680 @default.
• W1977029579 hasConcept C18903297 @default.
• W1977029579 hasConcept C2775910092 @default.
• W1977029579 hasConcept C2777959311 @default.
• W1977029579 hasConcept C2778530040 @default.
• W1977029579 hasConcept C2779965526 @default.
• W1977029579 hasConcept C2781334511 @default.
• W1977029579 hasConcept C46141821 @default.
• W1977029579 hasConcept C513476851 @default.
• W1977029579 hasConcept C86803240 @default.
• W1977029579 hasConceptScore W1977029579C104892082 @default.
• W1977029579 hasConceptScore W1977029579C117838684 @default.
• W1977029579 hasConceptScore W1977029579C121332964 @default.
• W1977029579 hasConceptScore W1977029579C12554922 @default.
• W1977029579 hasConceptScore W1977029579C1276947 @default.
• W1977029579 hasConceptScore W1977029579C134018914 @default.
• W1977029579 hasConceptScore W1977029579C169760540 @default.
• W1977029579 hasConceptScore W1977029579C185263204 @default.
• W1977029579 hasConceptScore W1977029579C185592680 @default.
• W1977029579 hasConceptScore W1977029579C18903297 @default.
• W1977029579 hasConceptScore W1977029579C2775910092 @default.
• W1977029579 hasConceptScore W1977029579C2777959311 @default.
• W1977029579 hasConceptScore W1977029579C2778530040 @default.
• W1977029579 hasConceptScore W1977029579C2779965526 @default.
• W1977029579 hasConceptScore W1977029579C2781334511 @default.
• W1977029579 hasConceptScore W1977029579C46141821 @default.
• W1977029579 hasConceptScore W1977029579C513476851 @default.
• W1977029579 hasConceptScore W1977029579C86803240 @default.
• W1977029579 hasIssue "1" @default.
• W1977029579 hasLocation W19770295791 @default.
• W1977029579 hasLocation W19770295792 @default.
• W1977029579 hasOpenAccess W1977029579 @default.
• W1977029579 hasPrimaryLocation W19770295791 @default.

• next