+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Mauthner neuron field potential in newly hatched larvae of the zebra fish



Mauthner neuron field potential in newly hatched larvae of the zebra fish



Journal of Neurophysiology 38(3): 502-512



1. Extracellular unit recording was done in the brain and spinal cord of unanesthesized zebra fish larvae embedded in a drop of gelatin under a compound microscope. Startle responses were elicited either by vibrating a stylus against the ear vesicle, or by direct electrical stimulation of the spinal cord. 2. As in adult fish, the Mauthner neurons produced a prominent negative potential (0.5-1 mV) which occurred at the beginning of the startle reflex. The axonal conduction velocity was 1.7-3.7 m/s. 3. With vibratory stimulation, the startle reflex was elicited most reliably at rates of 1/min or less, though the Mauthner cells would follow stimulation rates of 1/s when the spinal cord was stimulated electrically. At this rate there was considerable fatigue of the spike itself, which became smaller in amplitude and longer in duration. 4. The auditory system functions during vibratory stimulation of the ear vesicle, and probably activates the Mauthner cells, though it was not concluded that this was an exclusive excitatory pathway during these experiments. Lateral line or purely tactile receptors might also be involved. The latency of the Mauthner spike varied inversely (range, 6-17.5 ms) with the intensity of the vibratory stimulus. Muscle contractions began 2 ms after the Mauthner spike. 5. We recorded several forms of startle behavior, including a single tail flip or a tail flip followed by regular or irregular tail movements. The Mauthner neuron almost always fired at the beginning of the response, but it never fired again during subsequent movements. This supports an earlier contention that the Mauthner cell initiates the tail flip but is not involved in iterative swimming behavior.

(PDF emailed within 0-6 h: $19.90)

Accession: 023011201

Download citation: RISBibTeXText

PMID: 1127453

DOI: 10.1152/jn.1975.38.3.502


Related references

Radiosensitivity and time of origin of Mauthner neuron in the zebra fish. Developmental Biology 62(2): 526-529, 1978

Functional development in the Mauthner cell system of embryos and larvae of the zebra fish. Journal of Neurobiology 8(2): 151-172, 1977

Differential activation of mauthner and non mauthner startle circuits in the zebra fish brachydanio rerio implications for functional substitution. Journal of Comparative Physiology A Sensory Neural & Behavioral Physiology 155(6): 813-820, 1984

Egg cannibalism by newly hatched larvae of hatched larvae of the small white butterfly, Pieris rapae crucivora (Pieridae), on an artificial diet. Journal of the Lepidopterists' Society 51(4): 304-315, 1997

Effects of egg incubation temperature the condition of newly hatched on fish larvae. Acta Scientiarum Polonorum Piscaria 1(2): 5-20, 2002

Measuring newly hatched phytophagous larvae in the field or greenhouse. J. econ. Ent, 62: 1, 259 p, 1969

Estimation of the year-class of newly hatched fish larvae in Finnish lakes: How sampling design can influence abundance estimations?. Ergebnisse der Limnologie 0(50): 73-80, 1998

Anticipating the free amino acid concentrations in newly hatched pelagic fish larvae based on recently fertilized eggs and temperature. Journal of Plankton Research 39(6): 1012-1019, 2017

In vitro culture of the larvae of Ascaris lumbricoides suum. Continued studies with newly hatched larvae. Journal of Parasitology. 48: 2, Sect. 2, 37, 1962

In vitro culture of the larvae of Ascaris lumbricoides swan. Continued studies with newly hatched larvae. Journal of Parasitology, 482 Sect. 2: 37, 1962

Changes in Biochemical Composition of Newly Spawned Eggs, Prehatching Embryos and Newly Hatched Larvae of the Blue Crab Callinectes sapidus. Journal of Shellfish Research 31(4): 941-946, 2012

Efficacy of some contact insecticides against newly-hatched larvae of Hylotrupes bajulus and larvae of Anobium after ten-years' storage of the treated wood. Holz-Zentralbl, Stuttgart, 87: 154-156, 6], 1961

Retarded development of Mauthner's neuron in thyroidectomized anuran larvae. Anatomical Record, 148: 321-322, 1964

The influence of thyroid hormone on size of Mauthner's neuron in anuran larvae. Anatomical Record, 142: 266, 1962

The role of the thyroid in the development of Mauthner's neuron. A karyometric study in thyroidectomized anuran larvae. Zeitschrift für Zellforschung und Mikroskopische Anatomie 75(1): 138-145, 1966