ISS observations offer insights into plant function

What insights can fMRI offer into the structure and function of mid-tier visual areas?

Inferring neural responses from functional magnetic resonance imaging (fMRI) data is challenging. Even if we take advantage of high-field systems to acquire data with submillimeter resolution, we are still acquiring data in which a single datum summarizes the responses of tens of thousands of neurons. Excitation and inhibition, spikes and subthreshold membrane potential modulations, local and l...

Sequential dependencies in human behavior offer insights into cognitive control

We present a perspective on cognitive control that is motivated by an examination of sequential dependencies in human behavior. A sequential dependency is an influence of one incidental experience on subsequent experience. Sequential dependencies arise in psychological experiments when individuals perform a task repeatedly or perform a series of tasks, and one task trial influences behavior on ...

Plant reproduction: insights into the "abominable mystery".

Phylogenetic insights into Andean plant diversification

*Correspondence: Federico Luebert, Nees-Institut für Biodiversität der Pflanzen, Universität Bonn, Meckenheimer Allee 170, 53115 Bonn, Germany e-mail: [email protected] Andean orogeny is considered as one of the most important events for the development of current plant diversity in South America. We compare available phylogenetic studies and divergence time estimates for plant lineages that...

Plant grafting: insights into tissue regeneration

For millennia, people have cut and joined different plants together through a process known as grafting. The severed tissues adhere, the cells divide and the vasculature differentiates through a remarkable process of regeneration between two genetically distinct organisms as they become one. Grafting is becoming increasingly important in horticulture where it provides an efficient means for ase...