2020
DOI: 10.1016/j.neuroscience.2020.04.038
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The Positional Logic of Sensory-Motor Reflex Circuit Assembly

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Cited by 10 publications
(7 citation statements)
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“…These findings support the idea that individual mXns develop specific input connectivity that is appropriate for their innervation targets, independent of their positioning. This is different from the positional strategy proposed for mammalian spinal motor neurons, in which motor neurons with common targets receive sensory input based on their distinct clustered positions in the spinal cord 5,34 . To directly test whether mXns can develop specific input connectivity irrespective of their position in the topographic map, we manipulated mXn positions through transplantation.…”
Section: 21mentioning
confidence: 77%
See 1 more Smart Citation
“…These findings support the idea that individual mXns develop specific input connectivity that is appropriate for their innervation targets, independent of their positioning. This is different from the positional strategy proposed for mammalian spinal motor neurons, in which motor neurons with common targets receive sensory input based on their distinct clustered positions in the spinal cord 5,34 . To directly test whether mXns can develop specific input connectivity irrespective of their position in the topographic map, we manipulated mXn positions through transplantation.…”
Section: 21mentioning
confidence: 77%
“…How are these intermingled diverse motor neurons incorporated in neural networks? A positional strategy such as occurs in limb-innervating motor neurons, where the position of motor neurons determines which presynaptic neurons they connect to [19][20][21][22] , would likely cause neighboring vagus motor neurons to connect with common presynaptic neurons, making functionally heterogenous groups of neurons fire together. It is an open question whether, and how, adjacent neurons with different functions can be activated differently for sophisticated peripheral control.…”
Section: Introductionmentioning
confidence: 99%
“…Expression of the TVA receptor and G are required for selective infection by EnvA pseudotyped G-deleted RV (RVΔG-mCherry/EnvA) and subsequent monosynaptic spreading, while the nuclear GFP reporter allows identification of starter cells (Figure 1A). We first focused on proprioceptive circuits that have been quite extensively characterized at anatomical and physiological levels (Zampieri et al, 2014; Balaskas et al, 2020). Thus, we crossed parvalbumin::Cre ( PV::Cre ), which is expressed in proprioceptive sensory neurons and a subset of low-threshold mechanoreceptors (LTMR) with the HTB mouse line (Hippenmeyer et al, 2007; de Nooij et al, 2013).…”
Section: Resultsmentioning
confidence: 99%
“…Proprioceptive sensory neurons can be anatomically and functionally divided on the basis of the identity of the muscle and receptor organ they innervate. First, during early development, proprioceptors innervate muscles and in order to precisely adjust motor output according to the biomechanical properties of their targets wire with neural circuits in the central nervous system (CNS) with exquisite specificity 2 , 3 . In addition, at a receptor level, proprioceptors can be further distinguished into three subtypes - Ia, Ib, and II - by their selective contribution to either muscle spindles (MS; Ia and II) or Golgi tendon organs (GTO; Ib) 4 .…”
Section: Introductionmentioning
confidence: 99%