We describe a model of visual processing in which feedback connections from a higher- to a lower-order visual cortical area carry predictions of lower-level neural activities, whereas the feedforward ...

Indicator species are living organisms that tell us that something has changed or is going to change in their environment. They can be easily observed, and studying them is considered a cost-effective ...

For many runners, the marathon represents the ultimate test of physical and mental endurance. The months leading up to a marathon require careful planning, including a sensible and progressive ...