Related Experiment Video
Updated: Jul 2, 2026

Training Synesthetic Letter-color Associations by Reading in Color
Published on: February 20, 2014
Retrieving object color: the influence of color congruity and test format
Yael M Cycowicz1, Doreen Nessler, Cort Horton
1Department of Brain Stimulation, New York State Psychiatric Institute, New York City, NY 10032, USA.
Abstract:
Incongruous episodes, relative to congruous episodes, engender better memory, but it is unclear whether recollection or familiarity is responsible. Hence, objects were encoded in either natural (yellow banana) or unnatural (blue banana) outline colors. Event-related potentials were recorded while memory was assessed by item (IT) and source (ST) tasks. During IT, unnatural color relative to natural color objects produced better memory and more positive parietal activity (500-600 ms) indicative of recollection. Surprisingly, the converse occurred in ST. As the encoding task required a natural/unnatural decision, an unnatural color object would have required activation of its natural counterpart to make an informed decision. Thus, source confusion during ST relative to IT would have led to a recollection disadvantage for unnatural color objects.
Related Concept Videos
Color Vision
Photoreceptors and Visual Pathways
Perceptual Constancy
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.
Fixation and Sectioning
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
Identifying Statistically Significant Differences: The F-Test

