A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish

  title={A History of Corollary Discharge: Contributions of Mormyrid Weakly Electric Fish},
  author={Matasaburo Fukutomi and Bruce A. Carlson},
  journal={Frontiers in Integrative Neuroscience},
Corollary discharge is an important brain function that allows animals to distinguish external from self-generated signals, which is critical to sensorimotor coordination. Since discovery of the concept of corollary discharge in 1950, neuroscientists have sought to elucidate underlying neural circuits and mechanisms. Here, we review a history of neurophysiological studies on corollary discharge and highlight significant contributions from studies using African mormyrid weakly electric fish… Expand
4 Citations
Vocal and Electric Fish: Revisiting a Comparison of Two Teleost Models in the Neuroethology of Social Behavior
The communication behaviors of vocal fish and electric fish are among the vertebrate social behaviors best understood at the level of neural circuits, and recent work that expands the knowledge of the neural circuits underlying these two communication systems is summarized. Expand
Predictive attenuation of touch and tactile gating are distinct perceptual phenomena
In recent decades, research on somatosensory perception has led to two important observations. First, self-generated touches that are predicted by voluntary movements become attenuated compared toExpand
Predictive attenuation of touch and tactile gating are distinct perceptual phenomena
It is demonstrated that whereas voluntary movement gates the precision of both self- generated and externally generated touch, the amplitude of self-generated touch is selectively attenuated compared to externally generatedtouch. Expand
Achieving visual stability during smooth pursuit eye movements: Directional and confidence judgements favor a recalibration model
Results show that both directional judgements and confidence judgements about them favor a recalibration account, whereby there is an adaptive shift in the reference signal caused by the prevailing retinal motion during pursuit. Expand


Electric organ corollary discharge pathways in mormyrid fish
The electrosensory lobe of mormyrid fish Gnathonemus petersii is strongly affected by corollary discharge signals associated with the electric organ discharge (EOD) motor command. This study is aExpand
Corollary discharge inhibition and preservation of temporal information in a sensory nucleus of mormyrid electric fish
  • C. Bell, K. Grant
  • Biology, Medicine
  • The Journal of neuroscience : the official journal of the Society for Neuroscience
  • 1989
Mechanisms of the corollary inhibition and the specializations in anatomy and physiology that permit the accurate relaying of temporal information about the EODs of other fish indicate that the knollenorgan pathway is specialized for temporal information rather than spatial or intensity information. Expand
Signal Diversification Is Associated with Corollary Discharge Evolution in Weakly Electric Fish
This study provides the first evidence for evolutionary change in sensorimotor integration related to diversification of communication signals and shows that fish with long-duration pulses have delayed corollary discharge inhibition, and that this time-shifted corollaries optimally blocks electrosensory responses to the fish's own signal. Expand
Sensory processing and corollary discharge effects in mormyromast regions of mormyrid electrosensory lobe. II. Cell types and corollary discharge plasticity.
Corollary discharge responses were plastic and depended on recent pairing of a sensory stimulus with the EOD motor command, and clearer in I2 and I3 cells than in I1 cells. Expand
A temporal basis for predicting the sensory consequences of motor commands in an electric fish
It is shown that granule cells indeed provide such a temporal basis and that it is well-matched to the temporal structure of self-generated sensory inputs, allowing rapid and accurate sensory cancellation and explaining paradoxical features of negative images. Expand
Central mechanisms of temporal analysis in the knollenorgan pathway of mormyrid electric fish
Of the four known types of electroreceptors in mormyrid fish, theknollenorgan electroreceptor is the one most likely to be involved in the detection of conspecific EOD signals, and recent advances in understanding how the central knollenorgan pathway might be analyzing the temporal structure of the EOD waveform are reviewed. Expand
The African wave-type electric fish, Gymnarchus niloticus, lacks corollary discharge mechanisms for electrosensory gating
  • M. Kawasaki
  • Biology, Medicine
  • Journal of Comparative Physiology A
  • 2004
Gymnarchus niloticus, a wave-type African electric fish, performs its jamming avoidance response by relying solely upon afferent signals and does not use corollary discharges from the pacemakerExpand
The Cellular Basis of a Corollary Discharge
It is shown that a single, multisegmental interneuron is responsible for the pre- and postsynaptic inhibition of auditory neurons in singing crickets (Gryllus bimaculatus), and this neuron represents a corollary dischargeinterneuron that provides a neuronal basis for the central control of sensory responses. Expand
Detection of transient synchrony across oscillating receptors by the central electrosensory system of mormyrid fish
It is found that electrosensory stimulation elicited evoked potentials in the midbrain exterolateral nucleus at a short latency following receptor synchronization, which provides further support for a novel mechanism for sensory coding based on the detection of oscillatory synchrony among peripheral receptors. Expand
The Midbrain Precommand Nucleus of the Mormyrid Electromotor Network
It is suggested that PCN electromotor-related field potentials arise from two sources: antidromically, by backpropagation across electrotonic synapses between PCN axons and command nucleus neurons, and as corollary discharge-driven feedback arriving from the command nucleus indirectly, via multisynaptic pathways. Expand