Tag

Electric Fish

All articles tagged with #electric fish

science1 month ago•36 min saved

Connectome reveals cerebellum-like circuit that rapidly cancels predictable sensory input

A Nature study maps cell types and synaptic connections in a cerebellum-like electrosensory circuit of electric fish, showing inhibitory and disinhibitory pathways, structured feedforward and recurrent connectivity, and multi-site plasticity that together solve a continual-learning problem by cancelling predictable sensory input while preserving unpredictable signals; a constrained computational model demonstrates how GC, MG, and SG plasticity and MG recurrence cooperate for fast, accurate, noise-robust predictions.

via nature.com|

#cerebellum-like-circuits #connectomics #electric-fish

science2 years ago•2 min saved

"Electric Fish: Collective Sensing and Shared Rhythms"

Neuroscientist Nathan Sawtell and his team at Columbia University have discovered that elephantnose fish, known for their ability to send and decipher weak electric signals, organize themselves in a particular orientation to create a collective electrical network. This network allows the fish to instantly sense changes in their environment, such as approaching predators, by exploiting the pulses of group members. The study raises questions about whether the fish intentionally spread out to maximize their sensory range or simply make the most of each other's positioning, showcasing their clever and brainy behavior.

via NPR|

#animal-behavior #collective-sensing #electric-fish

biology2 years ago•8 min saved

"Uncovering Collective Sensing in African Electric Fish"

Research on electric fish reveals insights into collective sensing and communication in active-sensing animals, shedding light on the neural mechanisms and evolution of behavior. The study explores distributed information fusion in multistatic sensor networks for underwater surveillance and the potential for group hunting via eavesdropping in echolocating bats, as well as the evidence for mutual allocation of social attention through interactive signaling in weakly electric fish. This research contributes to a better understanding of how animals use their sensory systems to navigate and communicate in complex environments.

via Nature.com|

#active-sensing-systems #biology #collective-sensing