Analysis of surface wave direction by the lateral line system of Xenopus: Source localization before and after inactivation of different parts of the lateral line

1996 ◽  
Vol 178 (2) ◽  
Author(s):  
B. Claas ◽  
H. M�nz
Keyword(s):  
Surface Wave ◽  
Source Localization ◽  
Lateral Line ◽  
Lateral Line System ◽  
Wave Direction ◽  
Line System ◽  
Before And After ◽  
Different Parts

Dipole-source localization using biomimetic flow-sensor arrays positioned as lateral-line system

2010 ◽  
Vol 162 (2) ◽  
pp. 355-360 ◽  
Author(s):  
A.M.K. Dagamseh ◽  
T.S.J. Lammerink ◽  
M.L. Kolster ◽  
C.M. Bruinink ◽  
R.J. Wiegerink ◽  
...  
Keyword(s):  
Source Localization ◽  
Lateral Line ◽  
Sensor Arrays ◽  
Flow Sensor ◽  
Dipole Source ◽  
Lateral Line System ◽  
Line System ◽  
Dipole Source Localization

Underwater Source Localization Using an Artificial Lateral Line System with Pressure and Flow Velocity Sensor Fusion

2021 ◽  
pp. 1-1
Author(s):  
Yonggang Jiang ◽  
Zheng Gong ◽  
Zhen Yang ◽  
Zhiqiang Ma ◽  
Chunxuan Wang ◽  
...  
Keyword(s):  
Flow Velocity ◽  
Sensor Fusion ◽  
Source Localization ◽  
Lateral Line ◽  
Lateral Line System ◽  
Velocity Sensor ◽  
Line System

Lateral-Line Input and Stimulus Localization in the African Clawed Toad Xenopus SP

1984 ◽  
Vol 108 (1) ◽  
pp. 315-328 ◽  
Author(s):  
PETER GÖRNER ◽  
PETER MOLLER ◽  
WOLFGANG WEBER
Keyword(s):  
Surface Wave ◽  
Lateral Line ◽  
Displacement Component ◽  
Lateral Line System ◽  
Sufficient Information ◽  
Line System ◽  
Turning Angle ◽  
Reflected Waves ◽  
Wrong Side ◽  
The Right

1. Intact Xenopus sp. responded to a train of surface waves with a single, stimulus-directed motor response which consisted of a turning component and a displacement component. The turning angle increased in a linear fashion with the stimulus angle. 2. The magnitude of the turning angle was not affected by (a) the size of the animal, (b) the way the surface wave was elicited (with a drop of water or by dipping a rod into the water), (c) reflected waves and (d) the number of successively administered stimuli. 3. With no lateral-line organs left intact Xenopus could still localize the origin of a surface wave, but with reduced accuracy. 4. With only two stitches left intact on the left and on the right occipital lines, the turning angles were more widely scattered for stimuli placed at angles larger than 90°. The scatter was even larger than that of the equivalent responses from animals without a functional lateral-line system, i.e. the directional responsiveness in the partly lesioned animals was less accurate than in those with their entire lateral-line inoperative. 5. Xenopus with four or two ipsilateral occipital stitches left intact were no longer able to orientate accurately. When the animal was stimulated on the lesioned side it frequently turned to the wrong side. These errors were absent or less frequent when the animal was stimulated on the intact side. 6. The lesion experiments indicated that (a) a few organs provide sufficient information for an appropriate turning response, but the turnings were only roughly directed towards the stimulus, and (b) the decision whether Xenopus localizes a stimulus on the left or right side depends on whether the central nervous system receives information from one or both sides.

scholarly journals Frequency response properties of primary afferent neurons in the posterior lateral line system of larval zebrafish

2015 ◽  
Vol 113 (2) ◽  
pp. 657-668 ◽  
Author(s):  
Rafael Levi ◽  
Otar Akanyeti ◽  
Aleksander Ballo ◽  
James C. Liao
Keyword(s):  
Lateral Line ◽  
Sine Wave ◽  
Afferent Neuron ◽  
Lateral Line System ◽  
Afferent Neurons ◽  
Primary Afferent Neurons ◽  
Primary Afferent ◽  
Line System ◽  
Response Properties ◽  
Larval Zebrafish

The ability of fishes to detect water flow with the neuromasts of their lateral line system depends on the physiology of afferent neurons as well as the hydrodynamic environment. Using larval zebrafish ( Danio rerio), we measured the basic response properties of primary afferent neurons to mechanical deflections of individual superficial neuromasts. We used two types of stimulation protocols. First, we used sine wave stimulation to characterize the response properties of the afferent neurons. The average frequency-response curve was flat across stimulation frequencies between 0 and 100 Hz, matching the filtering properties of a displacement detector. Spike rate increased asymptotically with frequency, and phase locking was maximal between 10 and 60 Hz. Second, we used pulse train stimulation to analyze the maximum spike rate capabilities. We found that afferent neurons could generate up to 80 spikes/s and could follow a pulse train stimulation rate of up to 40 pulses/s in a reliable and precise manner. Both sine wave and pulse stimulation protocols indicate that an afferent neuron can maintain their evoked activity for longer durations at low stimulation frequencies than at high frequencies. We found one type of afferent neuron based on spontaneous activity patterns and discovered a correlation between the level of spontaneous and evoked activity. Overall, our results establish the baseline response properties of lateral line primary afferent neurons in larval zebrafish, which is a crucial step in understanding how vertebrate mechanoreceptive systems sense and subsequently process information from the environment.

scholarly journals Diversity and sexual dimorphism in the head lateral line system in North Sea populations of threespine sticklebacks, Gasterosteus aculeatus (Teleostei: Gasterosteidae)

Zoomorphology ◽  
2020 ◽  
Author(s):  
Harald Ahnelt ◽  
David Ramler ◽  
Maria Ø. Madsen ◽  
Lasse F. Jensen ◽  
Sonja Windhager
Keyword(s):  
Sexual Dimorphism ◽  
North Sea ◽  
Lateral Line ◽  
Gasterosteus Aculeatus ◽  
Sensory System ◽  
Threespine Stickleback ◽  
Lateral Line System ◽  
Line System ◽  
Marine Population ◽  
Threespine Sticklebacks

AbstractThe mechanosensory lateral line of fishes is a flow sensing system and supports a number of behaviors, e.g. prey detection, schooling or position holding in water currents. Differences in the neuromast pattern of this sensory system reflect adaptation to divergent ecological constraints. The threespine stickleback, Gasterosteus aculeatus, is known for its ecological plasticity resulting in three major ecotypes, a marine type, a migrating anadromous type and a resident freshwater type. We provide the first comparative study of the pattern of the head lateral line system of North Sea populations representing these three ecotypes including a brackish spawning population. We found no distinct difference in the pattern of the head lateral line system between the three ecotypes but significant differences in neuromast numbers. The anadromous and the brackish populations had distinctly less neuromasts than their freshwater and marine conspecifics. This difference in neuromast number between marine and anadromous threespine stickleback points to differences in swimming behavior. We also found sexual dimorphism in neuromast number with males having more neuromasts than females in the anadromous, brackish and the freshwater populations. But no such dimorphism occurred in the marine population. Our results suggest that the head lateral line of the three ecotypes is under divergent hydrodynamic constraints. Additionally, sexual dimorphism points to divergent niche partitioning of males and females in the anadromous and freshwater but not in the marine populations. Our findings imply careful sampling as an important prerequisite to discern especially between anadromous and marine threespine sticklebacks.

Larval lampreys possess a functional lateral line system

2006 ◽  
Vol 193 (2) ◽  
pp. 271-277 ◽  
Author(s):  
S. Gelman ◽  
A. Ayali ◽  
E. D. Tytell ◽  
A. H. Cohen
Keyword(s):  
Lateral Line ◽  
Lateral Line System ◽  
Line System
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