Vibration sense is one component of touch. Refinements of this sense, and in some animals the emission of vibration – typically from the vocal cords – has evolved to echolocation, to clicks, grunts, roars and to speech.  The vibration of one special membrane, the ear drum, creates that wonderful interface that enables us to appreciate and locate… read more »

“The Aleph was probably two to three centimeters in diameter, but universal space was contained inside it . . .” – JL Borges Our eyes move. They rove and they direct attention. Indeed, vision and our ability to focus attention more generally are intimately intertwined. And this hybrid faculty of vision/attention has been extended as… read more »