AFFERENT RESPONSE OF A HEAD CANAL NEUROMAST OF THE RUFF (ACERINA-CERNUA) LATERAL LINE

1. The fourth neuromast of the supra-orbital canal of the ruff lateral line is innervated by 300-400 fibres. 2. Afferent activity of 46 fibres was investigated as a function of stimulus amplitude and of stimulus frequency. 3. The dynamic range of the fibres exceeded 30 dB. 4. The gain with respect t...

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Bibliographic Details
Main Author: WUBBELS, RJ
Format: Article in Journal/Newspaper
Language:English
Published: 1992
Subjects:
TOPMINNOW APLOCHEILUS-LINEATUS
VERTEBRATE HAIR-CELLS
WATER-SURFACE WAVES
XENOPUS-LAEVIS
FISH
TRANSDUCTION
SENSITIVITY
SYSTEM
NERVE
Acerina
Ruff
Online Access:http://hdl.handle.net/11370/e66c47db-c679-4eae-99d6-dc19b09f23a9
https://research.rug.nl/en/publications/afferent-response-of-a-head-canal-neuromast-of-the-ruff-acerinacernua-lateral-line(e66c47db-c679-4eae-99d6-dc19b09f23a9).html
Description
Summary:1. The fourth neuromast of the supra-orbital canal of the ruff lateral line is innervated by 300-400 fibres. 2. Afferent activity of 46 fibres was investigated as a function of stimulus amplitude and of stimulus frequency. 3. The dynamic range of the fibres exceeded 30 dB. 4. The gain with respect to acceleration appeared to be constant from a few Hz up to 60-80 Hz. 5. At higher frequencies the gain rapidly fell off (80 dB/decade). 6. Short-term (tau almost-equal-to 100 ms) and long-term adaptation effects were observed in response to large stimulus amplitudes. 7. Fibres had comparable dynamic range and sensitivity. 8. Response properties at stimulus onset and offset confirmed that the neural activity encodes water acceleration in the vicinity of the fish.

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