Three pigeons were trained in a three-item simultaneous same/different task. Three of six stimulus combinations were not trained (untrained set) and were tested later. Following acquisition, the subjects were tested with novel stimuli, the untrained set, training-stimulus inversions, and object shape and color manipulations. There was no novel-stimulus transfer--that is, no abstract-concept lea...

The present study investigates the developmental aspect of stimulus-response compatibility (SRC) effect in 8-11-years-old children. The task consisted in manually responding to the color of a pawn presented on a chessboard at different distances. Manual responses were provided by reaching a proximal or distal location depending on the color of the stimulus. We found that reaction time was affec...

The issue whether attentional capture is determined by top-down factors or can be stimulus-driven remains unsolved. To examine this, we used a spatial cueing paradigm with set size four and eight in which a color target is preceded by an uninformative cue (color or onset) that either matches or does not match the target-defining feature. The critical manipulation lies in adding no-cue trials to...

World knowledge influences how we perceive the world. This study shows that this influence is at least partly mediated by declarative memory. Dutch and German participants categorized hues from a yellow-to-orange continuum on stimuli that were prototypically orange or yellow and that were also associated with these color labels. Both groups gave more "yellow" responses if an ambiguous hue occur...

In the present study, the light responses of ganglion cells to chromatic stimulus were recorded from isolated retina of neonatal chick. It was found that for some non-color-opponent ganglion cells, the spatiotemporal patterns of the cells' light responses were related to the chromatic information that they received. When stimulus with some chromatic component was applied, some ganglion cells wo...

One hallmark of vision in adults is the dichotomy between color and motion processing. Specifically, areas of the brain that encode an object's direction of motion are thought to receive little information about object color We investigated the development of this dichotomy by conducting psychophysical experiments with human subjects (2-, 3-, and 4-month-olds and adults), using a novel red-gree...

The temporal discrimination paradigm requires subjects to compare the duration of a probe stimulus to that of a sample previously stored in working or long-term memory, thus providing an index of timing that is independent of a motor response. However, the estimation process itself comprises several component cognitive processes, including timing, storage, retrieval, and comparison of durations...

Color has become a premier model system for understanding how information is processed by neural circuits, and for investigating the relationships among genes, neural circuits, and perception. Both the physical stimulus for color and the perceptual output experienced as color are quite well characterized, but the neural mechanisms that underlie the transformation from stimulus to perception are...

DOCUMENT 'PESUME 24 CG 005 776 Tolliver, Don I. A Study of Color in Instructional Materials and Its Effects Upon Learning. Final Report. Purdue Univ. , Lafayette, Ind. Audio Visual Center. Office of Education (DHEW) TgAhing+nn, E.C. BR-9-E-101 Mar 70 OEG-5-9-245101-0061 96p. EDRS Price ME-$0.50 HC-$4.90 *Audiovisual Aids, *College Students, *Color Presentation, *Films, *Instructional Materials,...