Color responsiveness argues against a dorsal component of human V4

How a prototype argues

In this article, we argue that, just as an edition of a book can be a means of reifying a theory about how books should be edited, so can the creation of an experimental digital prototype be understood as conveying an argument about designing interfaces. Building on this premise, we explore theoretical affinities shared by recent design and book history scholarship, and connect those theories t...

Beta-adrenoceptor-mediated responsiveness of human internal mammary artery

The internal mammary artery (IMA) is currently the preferred conduit for myocardial revascularization. However, pre-operative vasospasm and a hypoperfusion state during maximal exercise may limit its use as a bypass graft. The mechanism of spasm has not been clearly defined. Since β-adrenoceptor activation plays a major role in vasorelaxation, the present study was carried out to investigate th...

Magnetoencephalography reveals early activation of V4 in grapheme-color synesthesia

Grapheme-color synesthesia is a neurological phenomenon in which letters and numbers (graphemes) consistently evoke particular colors (e.g. A may be experienced as red). The cross-activation theory proposes that synesthesia arises as a result of cross-activation between posterior temporal grapheme areas (PTGA) and color processing area V4, while the disinhibited feedback theory proposes that sy...

Organization of color-selective neurons in macaque visual area V4.

Cortical area V4 in monkeys contains neurons that respond selectively to particular colors. It has been controversial how these color-selective neurons are spatially organized in V4. One view asserts that color-selective neurons are organized in columns with different colors orderly mapped across the cortex, whereas other studies have found no evidence for columnar organization or any other clu...

Color Specificity in the Human V4 Complex – An fMRI Repetition Suppression Study