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Temperature induces gonadal maturation and affects electrophysiological sexual maturity indicators in Brachyhypopomus pinnicaudatus from a temperate climate
It is shown that high environmental temperature is enough to trigger sexual maturity in Brachyhypopomus pinnicaudatus from a temperate climate and that this species is a multiple spawner. Expand
The functional relationship between septal and hippocampal unit activity and hippocampal theta rhythm.
During the control period as well as after LSD-25 treatment in physostigmine injected animals there was a significantly smaller number of spikes in each septal burst and the autocorrelograms showed serial dependence. Expand
Electric Organs and Their Control
It has been known for more than 2000 years that some fish can induce painful, numbing sensations when handled. In the late 1600s, it was discovered that this sensation resulted from the production ofExpand
Innervation pattern and electric organ discharge waveform in Gymnotus carapo (Teleostei; Gymnotiformes).
The electrogenic organ (EO) of Gymnotus carapo has two main portions: a posterior region consisting of four bilaterally arranged electrocyte rows; and an anterior portion composed of only two. TheExpand
The Electric Organ Discharge of Brachyhypopomus pinnicaudatus
The effect of seasonal sex differences on electrogenic and passive tissue, the changes in impedance matching between the fish’s body and the environment, and the modulation of membrane properties by temperature, are able to modify the EOD waveform. Expand
High-frequency stimulation of the subthalamic nucleus silences subthalamic neurons: a possible cellular mechanism in Parkinson’s disease
It is suggested that the remission of parkinsonian symptoms by treatment with high-frequency electrical stimulation of theSubthalamic nucleus in humans may primarily reside on its capacity to suppress the action potential activity of subthalamic neurons. Expand
Water temperature sensitivity of EOD waveform in Brachyhypopomus pinnicaudatus
The data strongly suggest an interaction between the effects of temperature and steroid hormones upon electric organ discharge waveform within the breeding habitat of Brachyhypopomus pinnicaudatus. Expand
Environmental and hormonal influences upon EOD waveform in gymnotiform pulse fish
The hypothesis of temperature as the most important environmental cue for the onset of breeding in gymnotiform pulse fish of the temperate zone is supported by a clear temporal correlation that was observed in the wild between water temperature and sexual maturity, and the induction of gonadal maturation and sexual differences after acclimation at high temperature in the laboratory. Expand
Temperature sensitivity of the electric organ discharge waveform in Gymnotus carapo
Interactions between temperature sensitivity of the electric organ discharge waveform and sexual maturity that might be crucial for reproduction are strongly suggested. Expand
Septal unit activity and hippocampal EEG during the sleep-wakefulness cycle of the rat.
It is concluded that medial septal nucleus and hippocampal temporal patterns of activity are similar during REM sleep and restless wakefulness. Expand