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Over the course of his career, Pennebaker has studied the nature of physical symptoms, health consequences of secrets, expressive writing, and natural language, and has received grants from the National Science Foundation, the National Institutes of Health, the Templeton Foundation, the U.S. Army Research Institute, and other federal agencies for studies in language, emotion, and social dynamics.
The Helmholtz–Kohlrausch effect has been described in mathematical models by Fairchild and Pirrotta 1991, Nayatani 1997, and most recently High, Green, and Nussbamm 2023. Given a color's CIELAB coordinates, these methods produce an adjusted "equivalent achromatic lightness" L* EAL, i.e. the shade of grey humans think is as bright as the color ...
A piece of automatic writing produced by trance medium Leonora Piper, claimed to be a message from the spirit of Richard Hodgson. Automatic writing, also called psychography, is a claimed psychic ability allowing a person to produce written words without consciously writing. Practitioners engage in automatic writing by holding a writing ...
The sun has a luminance of about 1.6 × 10 9 cd/m 2 at noon. [3] Luminance is invariant in geometric optics. [4] This means that for an ideal optical system, the luminance at the output is the same as the input luminance. For real, passive optical systems, the output luminance is at most equal to the input.
When appearing on light bulb packages, brightness means luminous flux, while in other contexts it means luminance. [5] Luminous flux is the total amount of light coming from a source, such as a lighting device. Luminance, the original meaning of brightness, is the amount of light per solid angle coming from an area, such as the sky.
The Chubb illusion is similar to another visual illusion, the contrast effect.The contrast effect is an illusion in which the perceived brightness or luminance of an identical central visual target form on a larger uniform background varies to the test subject depending on the ratio of the central form's luminance to that of its background. [4]
The national Conference on College Composition and Communication (CCCC) is a national professional association of writing instructors in the United States, the largest organization dedicated to writing research, theory, and teaching pedagogy worldwide. At the annual CCCC convention, pedagogues from around the country deliver their recent ...
Külpe, who is lesser known than his German mentor, Wilhelm Wundt, revolutionized experimental psychology at his time. In his obituary, Aloys Fischer wrote that, “undoubtedly Külpe was the second founder of experimental psychology on German soil; for with every change of base he made it a requirement that an experimental laboratory should be ...