کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6266866 | 1294923 | 2011 | 7 صفحه PDF | دانلود رایگان |
This review focuses on recent progress in understanding mechanisms for filtering self-generated sensory signals in cerebellum-like circuits in fish and mammals. Recent in vitro studies in weakly electric gymnotid fish have explored the interplay among anti-Hebbian plasticity, synaptic dynamics, and feedforward inhibition in canceling self-generated electrosensory inputs. Studies of the mammalian dorsal cochlear nucleus have revealed multimodal integration and anti-Hebbian plasticity, suggesting that this circuit may adaptively filter incoming auditory information. In vivo studies in weakly electric mormryid fish suggest a key role for granule cell coding in sensory filtering. The clear links between synaptic plasticity and systems level sensory filtering in cerebellum-like circuits may provide insights into hypothesized adaptive filtering functions of the cerebellum itself.
⺠Cerebellum-like circuits in fish use plasticity to cancel predictable inputs. ⺠Plasticity mechanisms in different cerebellum-like circuits are compared. ⺠First evidence for multimodal integration in granule cells is reviewed. ⺠Implications for predictions in the cerebellum are discussed.
Journal: Current Opinion in Neurobiology - Volume 21, Issue 4, August 2011, Pages 602-608