Not whole but just some of the parts

Bistable Gestalts reduce activity in the whole of V1, not just the retinotopically predicted parts.

Activity in the primary visual cortex reduces when certain stimuli can be perceptually organized as a unified Gestalt. This reduction could offer important insights into the nature of feedback computations within the human visual system; however, the properties of this response reduction have not yet been investigated in detail. Here we replicate this reduced V1 response, but find that the modu...

Die—but not just yet

eterochromatin’s repressive hold on DNA transcription can only be relinquished when activators enter the nucleus. Or so the theory goes. But now Vanessa Witte, Andreas Baur (University of Erlangen, Germany), and colleagues find that a heterochromatin component can be pulled from the nucleus by both the HIV protein Nef and activated integrins. “This is a really new concept—that chromatin-associa...

extensions of some polynomial inequalities to the polar derivative

توسیع تعدادی از نامساوی های چند جمله ای در مشتق قطبی

The neural basis of morality: not just where, but when.

The neural basis of morality: not just where, but when We have known for some time that an intact ventromedial pre-frontal cortex (PFC) is essential for normal social and moral functioning , thanks in large part to studies of individuals who have suffered damage to it (Damasio, 1994). In this issue of Brain, Taber-Thomas and colleagues report that the specific nature of a person's moral impairm...

Heart failure: not just the heart but also the lungs.