Influences of Motor Systems on Electrosensory Processing

Perks, Krista; Sawtell, Nathaniel B.

doi:10.1007/978-3-030-29105-1_11

Cited by 3 publications

(4 citation statements)

References 89 publications

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“…90 The most deeply Article studied examples of the subtle effects of corollary discharge come from the electrosensory system of mormyrid fish, where a corollary discharge for each EOD pulse can cancel or enhance the responses of the target ELL neurons, depending on their sensory role. 88,91 EOD corollary discharge signals were even observed throughout the mormyrid pallium, 92 although their function is not known. Such corollary discharge associated with the EOD itself is not present in gymnotiform fish.…”

Section: Discussionmentioning

confidence: 99%

Mixed selectivity coding of sensory and motor social signals in the thalamus of a weakly electric fish

Wallach¹,

Melanson²,

Longtin³

et al. 2022

Current Biology

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Section: Discussionmentioning

confidence: 99%

Mixed selectivity coding of sensory and motor social signals in the thalamus of a weakly electric fish

Wallach¹,

Melanson²,

Longtin³

et al. 2022

Current Biology

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“…In species where the males and females differ in EOD frequency, the tuning of electroreceptors show corresponding sexual differences. As with the vocal system, information about ongoing EOD activity is transmitted to sensory structures from the motor command system ( Figure 1D ) via either peripheral reafference (gymnotiformes, Gymnarchus ) or central corollary discharge (mormyrids) pathways ( Perks and Sawtell, 2019 ; Fukutomi and Carlson, 2020 ). Extensive literature dating back to the early 1960s ( Bennett, 1971b ; Heiligenberg, 1977 ) documents this electrosensory processing, often with comparisons to audition, and was recently reviewed elsewhere ( Carlson, 2004 ; Caputi, 2017 ; Carlson et al, 2019 ).…”

Section: Neural Circuits Underlying Vocal and Electric Signalingmentioning

confidence: 99%

Vocal and Electric Fish: Revisiting a Comparison of Two Teleost Models in the Neuroethology of Social Behavior

Dunlap

Koukos

Chagnaud

et al. 2021

Front. Neural Circuits

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The communication behaviors of vocal fish and electric fish are among the vertebrate social behaviors best understood at the level of neural circuits. Both forms of signaling rely on midbrain inputs to hindbrain pattern generators that activate peripheral effectors (sonic muscles and electrocytes) to produce pulsatile signals that are modulated by frequency/repetition rate, amplitude and call duration. To generate signals that vary by sex, male phenotype, and social context, these circuits are responsive to a wide range of hormones and neuromodulators acting on different timescales at multiple loci. Bass and Zakon (2005) reviewed the behavioral neuroendocrinology of these two teleost groups, comparing how the regulation of their communication systems have both converged and diverged during their parallel evolution. Here, we revisit this comparison and review the complementary developments over the past 16 years. We (a) summarize recent work that expands our knowledge of the neural circuits underlying these two communication systems, (b) review parallel studies on the action of neuromodulators (e.g., serotonin, AVT, melatonin), brain steroidogenesis (via aromatase), and social stimuli on the output of these circuits, (c) highlight recent transcriptomic studies that illustrate how contemporary molecular methods have elucidated the genetic regulation of social behavior in these fish, and (d) describe recent studies of mochokid catfish, which use both vocal and electric communication, and that use both vocal and electric communication and consider how these two systems are spliced together in the same species. Finally, we offer avenues for future research to further probe how similarities and differences between these two communication systems emerge over ontogeny and evolution.

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“…In these cerebellum-like circuits, a “negative image” of expected reafferent input is made through anti-Hebbian spike-timing-dependent plasticity at the synapses between parallel fibers and the apical dendrites of MG cells. Modified from Bell (1989) ; Perks and Sawtell (2019) .…”

Section: Corollary Discharge Inhibition For Communicationmentioning

confidence: 99%

“…By contrast, exafferent input is noise for active electrolocation. The sensory processing related to these behaviors is performed by separate sensory pathways, each having a different type of sensory receptor ( Bell, 1989 ; Perks and Sawtell, 2019 ). In these dedicated sensory pathways, corollary discharges differently modulate sensory processing to extract behaviorally relevant information ( Bell, 1989 ; Perks and Sawtell, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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

Fukutomi

Carlson

2020

Front. Integr. Neurosci.

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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. Mormyrid fish generate brief electric pulses to communicate with other fish and to sense their surroundings. In addition, mormyrids can passively locate weak, external electric signals. These three behaviors are mediated by different corollary discharge functions including inhibition, enhancement, and predictive “negative image” generation. Owing to several experimental advantages of mormyrids, investigations of these mechanisms have led to important general principles that have proven applicable to a wide diversity of animal species.

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Influences of Motor Systems on Electrosensory Processing

Cited by 3 publications

References 89 publications

Mixed selectivity coding of sensory and motor social signals in the thalamus of a weakly electric fish

Mixed selectivity coding of sensory and motor social signals in the thalamus of a weakly electric fish

Vocal and Electric Fish: Revisiting a Comparison of Two Teleost Models in the Neuroethology of Social Behavior

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

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