Ladd-Franklin's theory

Ladd-Franklin's theory
a theory of the evolution of color vision: first, light stimulates a substance in the visual cells, producing a sensation of white light; next, molecular changes from the first reaction produce two reactive products, one for each end of the spectrum, for blue and yellow; finally, the reactive product from the yellow becomes two products for red and green. Dichromasies and anomalous trichromasies are considered to be incomplete recapitulations of the evolutionary development.

Medical dictionary. 2011.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Ladd-Franklin's theory — Ladd Frank·lin s theory (ladґ frangkґlinz) [Christine Ladd Franklin, American physician, 1847–1930] see under theory …   Medical dictionary

  • Ladd-Franklin, Christine — orig. Christine Ladd born Dec. 1, 1847, Windsor, Conn., U.S. died March 5, 1930, New York, N.Y. U.S. scientist and logician. She fulfilled Ph.D. requirements at Johns Hopkins University in the 1880s, but, because women candidates were not… …   Universalium

  • Ladd-Franklin — Christine, U.S. psychologist, 1847–1930. See Ladd Franklin theory …   Medical dictionary

  • Christine Ladd-Franklin — Born D …   Wikipedia

  • Christine Ladd-Franklin — (* 1. Dezember 1847 in Windsor (Connecticut); † 5. März 1930 in New York City) war eine US amerikanische Mathematikerin (Logik) und Psychologin. Sie gilt als erste Frau, die in den USA alle notwendigen formalen Voraussetzungen für eine …   Deutsch Wikipedia

  • theory — A reasoned explanation of known facts or phenomena that serves as a basis of investigation by which to seek the truth. SEE ALSO: hypothesis, postulate. [G. theoria, a beholding, speculation, t., fr. theoros, a beholder] adsorption t. of narcosis… …   Medical dictionary

  • Charles Sanders Peirce bibliography — C. S. Peirce articles  General:    Charles Sanders Peirce Charles Sanders Peirce bibliography Philosophical:    Categories (Peirce) Semiotic elements and   classes of signs (Peirce) Pragmatic maxim • Pragmaticism… …   Wikipedia

  • History of psychology — The history of psychology as a scholarly study of the mind and behavior dates back to the Ancient Greeks. There is also evidence of psychological thought in ancient Egypt. Psychology was a branch of philosophy until the 1870s, when psychology… …   Wikipedia

  • logic, history of — Introduction       the history of the discipline from its origins among the ancient Greeks to the present time. Origins of logic in the West Precursors of ancient logic       There was a medieval tradition according to which the Greek philosopher …   Universalium

  • Charles Sanders Peirce —  B …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”