Learn More
Synchronization properties of locally coupled neural oscillators were investigated analytically and by computer simulation. When coupled in a manner that mimics excitatory chemical synapses, oscillators having more than one time scale (relaxation oscillators) are shown to approach synchrony using mechanisms very different from that of oscillators with a(More)
Recent delayed matching studies have demonstrated that maintaining trial-unique stimuli in working memory modulates activity in temporal lobe structures. In contrast, most previous studies that focused on the role of the prefrontal cortex (PFC) used familiar stimuli. We combined fMRI with a delayed-match-to-sample (DMS) task in humans that allowed us to(More)
A general feature of the cerebral cortex is its massive i n terconnec-tivity-it has been estimated anatomically 15 that cortical neurons receive on the order of 10,000 synapses, the majority of which originate from other nearby cortical neurons. Numerous experiments in primary visual cortex V1 have revealed strongly nonlinear interactions between stimulus(More)
Soybean is a major crop species providing valuable feedstock for food, feed and biofuel. In recent years, considerable progress has been made in developing genomic resources for soybean, including on-going efforts to sequence the genome. These efforts have identified a large number of soybean genes, most with unknown function. Therefore, a major research(More)
AtMYB44, a member of the subgroup 22 R2R3 MYB transcription factors, positively regulates abscisic acid signaling to induce stomatal closure, thus conferring drought/salt-stress tolerance in Arabidopsis thaliana. In this study, AtMYB44 was transformed into soybean [Glycine max (L.) Merrill] using the cotyledonary-node method. The resulting homozygous lines(More)
Enhanced aluminum (Al) resistance has been observed in dicots over-expressing enzymes involved in organic acid synthesis; however, this approach for improving Al resistance has not been investigated in monocots. Among the cereals, oat (Avena sativa L.) is considered to be Al resistant, but the basis of resistance is not known. A hydroponic assay and(More)
  • 1