Seeing the forms

Seeing visual word forms: Spatial summation, eccentricity and spatial configuration

We investigated observers' performance in detecting and discriminating visual word forms as a function of target size and retinal eccentricity. The contrast threshold of visual words was measured with a spatial two-alternative forced-choice paradigm and a PSI adaptive method. The observers were to indicate which of two sides contained a stimulus in the detection task, and which contained a real...

Seeing Seeing

This paper discusses several key issues concerning consciousness and human vision. A brief overview is presented of recent developments in this area, including issues that have been resolved and issues that remain unsettled. Based on this, three Hilbert questions are proposed. These involve three related sets of issues: the kinds of visual experience that exist, the kinds of visual attention th...

Seeing and not seeing.

Recent studies revealed that although subterranean mammals inhabit a dark underground environment, they can still perceive light stimuli and use this to entrain their circadian activity rhythm. Regarding spatial orientation, olfactory and tactile cues are employed for short-distance; whereas for long-distance, subterranean mammals employ the earth's magnetic field and self-generated (vestibular...

Seeing more is seeing better.

Delta Design: Seeing/Seeing as

“....On ne trouvera point de Figures dans cet Ouvrage. Les methodes que j’y expose ne demandent ni constructions, ni raisonnements geometriques ou mechaniques, mais seulement des operations algebriques, assujetties a une marche reguliere et uniforme. Ceux qui aiment l’Analyse, verront avec plaisir la Mechanique en devenir une nouvelle branche, et me savront gre d’en avoir etendu ainsi le domain...