: Neuroscience Articles
News and Views: Changing tune in auditory cortexInvestigating the organization of tone representation in the rodent auditory cortex at high resolution, two new studies in this issue find that the arrangement of relative frequency responsiveness is not preserved at a fine-scale cortical level. Nature Neuroscience, vol. 13 #3, pp271-273 |
News and Views: The longer U(T)R, the further you goA new localization element in the 3? untranslated region of the IMPA1 mRNA enables its NGF-dependent targeting to sympathetic axons, suggesting that high local inositol levels are required for axon growth and maintenance. Nature Neuroscience, vol. 13 #3, pp273-275 |
News and Views: Myelin maintenance: axonal support requiredAxonal integrity depends on an intact myelin sheath, but the role of the axon in myelin maintenance is more mysterious. A new study reports that preservation of the myelin sheath requires neuronal expression of the enigmatic prion protein. Nature Neuroscience, vol. 13 #3, pp275-277 |
News and Views: Timing isn't everythingSynaptic long-term potentiation and depression are determined by the frequency and timing of coactivated synapses. A new model explains many experimental plasticity observations and allows new predictions about neural circuit function. Nature Neuroscience, vol. 13 #3, pp277-279 |
News and Views: Quick thinking: perceiving in a tenth of a blink of an eyeWhat is the minimal sensory processing time before we can make a decision about a stimulus? A study now reports that, for simple perceptual decisions, this can take as little as 30 ms. Nature Neuroscience, vol. 13 #3, pp279-280 |
Brief Communication: Bimodal control of stimulated food intake by the endocannabinoid systemCannabinoid signaling is generally thought to increase food intake. Bellocchio et al. show that cannabinoids can increase or attenuate feeding after a fast, depending on whether they act on glutamatergic forebrain or GABAergic ventral striatal neurons. Nature Neuroscience, vol. 13 #3, pp281-283 |
Brief Communication: Opioids activate brain analgesic circuits through cytochrome P450/epoxygenase signalingThe authors generated a mutant mouse with neuron-specific reductions in brain cytochrome P450 activity. These mice have attenuated morphine antinociception, which suggests that neuronal P450 epoxygenase mediates the pain-relieving properties of morphine. Nature Neuroscience, vol. 13 #3, pp284-286 |
Brief Communication: Adult-born SVZ progenitors receive transient synapses during remyelination in corpus callosumAfter a focal demyelination of the corpus callosum in adult mice, the demyelinated axons form functional excitatory synapses onto adult-born oligodendrocyte progenitor cells. This input is lost later on. Nature Neuroscience, vol. 13 #3, pp287-289 |
