OBJECTIVE To compare the diagnostic accuracy of two vision screeners by a visual examination performed by an optometrist (gold standard) and to evaluate the concordance between both screeners and between each screener and the gold standard. METHODS This was a cross-sectional study that included computer workers who attended a routine yearly health examination. The study included administrativ...

People communicate primarily by two medea: acoustic-the spoken word; and visual N the written word. It is therefore natural chac people would expect their com-,nications with machines Co likewise use Chess two modes. To a considerable extent, speech is probably the most natural of the natural-language modes. ~ence, a fascination exists with machines thac respond to spoken commands with syntheti...

The visual display is at present the main medium for human-computer interaction. To optimize display design, one must consider all three components of the humandisplay interface. First, one must understand the information that is to be conveyed to the human user. Second, one must consider the constraints that a particular display technology places on the transmission of the signal. Third, one m...

The visual system transmits information about fast and slow changes in light intensity through separate neural pathways. We used in vivo imaging to investigate how bipolar cells transmit these signals to the inner retina. We found that the volume of the synaptic terminal is an intrinsic property that contributes to different temporal filters. Individual cells transmit through multiple terminals...

The claustrum, a subcortical telencephalic structure, is known to be reciprocally interconnected to almost all cortical regions; however, a systematic analysis of claustrocortical connectivity with physiologically identified lower and higher order visual cortical areas has not been undertaken. In the current study we used biotinylated dextran amine to trace the connections of the ferret claustr...