http://www.scivee.tv/node/5053 en http://www.scivee.tv/node/8389 <p>Neurotrophic interactions occur in Drosophila, but to date no neurotrophic factor had been found. Neurotrophins are the main vertebrate secreted signalling molecules that link nervous system structure and function: they regulate neuronal survival, targeting, synaptic plasticity, memory and cognition. Here we have identified a neurotrophic factor in flies, Drosophila Neurotrophin (DNT1), structurally related to all known neurotrophins and highly conserved in insects.</p> <div class="og_rss_groups"><ul class="links"><li class="first last og_links"><a href="/node/5053" class="og_links">Neuroscience</a></li> </ul></div><p><a href="http://www.scivee.tv/node/8389">read more</a></p> brain evolution drosophila neurodevelopment neurotrophin PLoS Biology Neuroscience Tue, 18 Nov 2008 03:01:26 -0800 Alicia Hidalgo 8389 at http://www.scivee.tv http://www.scivee.tv/pubcast/17505542 <p>Brains are usually described as input/output systems: they transform sensory input into motor output. However, the motor output of brains (behavior) is notoriously variable, even under identical sensory conditions. The question of whether this behavioral variability merely reflects residual deviations due to extrinsic random noise in such otherwise deterministic systems or an intrinsic, adaptive indeterminacy trait is central for the basic understanding of brain function.</p> <div class="og_rss_groups"><ul class="links"><li class="first last og_links"><a href="/node/6212" class="og_links">CyberRaiders Math</a></li> </ul></div><p><a href="http://www.scivee.tv/pubcast/17505542">read more</a></p> behavior brain flight fly fruit fly inter-spike-interval invertebrate nonlinear spike PLoS ONE Universal Science Neuroscience CyberRaiders Math Wed, 22 Aug 2007 06:07:09 -0700 brembs 726 at http://www.scivee.tv