How to know where to go

Do Fielders Know Where to Go to Catch the Ball or Only How to Get There?

Skilled fielders were filmed as they ran backward or forward to catch balls projected toward them from a bowling machine 45 m away. They ran at a speed that kept the acceleration of the tangent of the angle of elevation of gaze to the ball at 0. This algorithm does not tell fielders where or when the ball will land, but it ensures that they run through the place where the ball drops to catch he...

Small fi ber neuropathy – how to start , where to go ?

Small fi ber neuropathy (SFN) is a type of sensory neuropathy which selectively aff ects small diameter somatic and autonomic nerve fi bers. Diagnosis is challenging, given that clinical picture can be diffi cult to interpret. Patients typically present with painful paresthesias and/or signs of autonomic dysfunction. In SFN, neuropathic pain was shown to be a frequent and early symptom, so it i...

Impulsive dispositions and alcohol: what we know, how we know it, and where to go from here

Background Relations between impulsigenic traits and alcohol-related outcomes have been the focus of much research, yet precise relations remain elusive. Historically, research used broadband conceptualizations of impulsivity, which yielded inconclusive findings. Attempts to ameliorate this problem led to more work on narrowband assessments of impulsivity. Despite that several narrowband self-r...

Looking and homing: how displaced ants decide where to go.

We caught solitary foragers of the Australian Jack Jumper ant, Myrmecia croslandi, and released them in three compass directions at distances of 10 and 15 m from the nest at locations they have never been before. We recorded the head orientation and the movements of ants within a radius of 20 cm from the release point and, in some cases, tracked their subsequent paths with a differential GPS. W...

How do we know where to look ? Commentary on Chukoskie