Second-order stimulus

Second-order stimulus

A second-order stimulus is a form of visual stimulus used in psychophysics in which objects are delineated from their backgrounds by differences of contrast ot texture. On the contrary, a stimulus defined by differences in luminance is known as a first-order stimulus.


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Second-order conditioning — In classical conditioning, second order conditioning or higher order conditioning is a form of learning in which a stimulus is first made meaningful or consequential for an organism through an initial step of learning, and then that stimulus is… …   Wikipedia

  • Stimulus control — is the phenomenon of a stimulus increasing the probability of a behavior (operant response) because of a history of that behavior being differentially reinforced in the presence of the stimulus. In other words, stimulus control is basically… …   Wikipedia

  • Second Temple — Model of Herod s Temple (renovation of the Second Temple) in the Israel Museum The Jewish Second Temple was an important shrine which stood on the Temple Mount in Jerusalem between 516 BCE and 70 CE. It replaced the First Temple which was… …   Wikipedia

  • The Carmelite Order —     The Carmelite Order     † Catholic Encyclopedia ► The Carmelite Order     One of the mendicant orders.     Origin     The date of the foundation of the Order of Our Lady of Mount Carmel has been under discussion from the fourteenth century to …   Catholic encyclopedia

  • china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …   Universalium

  • China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …   Universalium

  • Europe, history of — Introduction       history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …   Universalium

  • sensory reception, human — Introduction  means by which humans react to changes in external and internal environments.   Ancient philosophers called the human senses “the windows of the soul,” and Aristotle described at least five senses sight, hearing, smell, taste, and… …   Universalium

  • Classical conditioning — This dog was fitted with a cannula to measure the amount of salivation when presented with a certain stimulus, Pavlov Museum, 2005 Classical conditioning (also Pavlovian or respondent conditioning, Pavlovian reinforcement) is a form of… …   Wikipedia

  • Motivation — For other uses, see Motivation (disambiguation). Timeline of theorists about student motivation Motivation is the driving force by which humans achieve their goals. Motivation is said to be intrinsic or extrinsic …   Wikipedia

Share the article and excerpts

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