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a procedure used in many psychology and psycholinguistics experiments; the basic procedure involves measuring how quickly people classify stimuli as words or nonwords. Subjects are presented, either visually or auditorily, with a mixture of words and pseudowords (nonsense strings that respect the phonotactic rules of a language, like trud in English). Their task is to indicate, usually with a button-press, whether the presented stimulus is a word or not.
Synonyms: word/nonword task
Definition contributed by MLewis about five years ago

No relations have yet been associated.
lexical decision task has been asserted to measure the following CONCEPTS
as measured by the contrasts:




as measured by the contrast:




DISORDERS associated with lexical decision task
No associations have been added.


IMPLEMENTATIONS of lexical decision task
No implementations have been added.
EXTERNAL DATASETS for lexical decision task
No external datasets have been added.
CONTRASTS

In the Cognitive Atlas, we define a contrast as any function over experimental conditions. The simplest contrast is the indicator value for a specific condition; more complex contrasts include linear or nonlinear functions of the indicator across different experimental conditions.

INDICATORS

An indicator is a specific quantitative or qualitative variable that is recorded for analysis. These may include behavioral variables (such as response time, accuracy, or other measures of performance) or physiological variables (including genetics, psychophysiology, or brain imaging data).


User Discussion


"Initial definition retrieved from http://en.wikipedia.org/wiki/Lexical_decision_task"
NPicchetti (about six years ago)


"It may be worth noting both in the definition and in the conditions and contrasts, that lexical decision is often the basic task being used to explore different aspects of words. For instance, lexical decision experiments are used to test for frequency, familiarity, and imageability effects to name a few. In these cases, the comparisons of interest are all within word conditions. There are so many versions of lexical decision experiments that it might be worth creating more specific LD tasks as separate concepts within this database and linking them to this concept using 'is a type of' relation."
JDevlin (about seven years ago)

Term History

REVISION 4

Definition contributed by RPoldrack about five years ago:a procedure used in many psychology and psycholinguistics experiments; the basic procedure involves measuring how quickly people classify stimuli as words or nonwords. Subjects are presented, either visually or auditorily, with a mixture of words and pseudowords (nonsense strings that respect the phonotactic rules of a language, like trud in English). Their task is to indicate, usually with a button-press, whether the presented stimulus is a word or not.

REVISION 3

Definition contributed by BGregory about six years ago:a procedure used in many psychology and psycholinguistics experiments; the basic procedure involves measuring how quickly people classify stimuli as words or nonwords. Subjects are presented, either visually or auditorily, with a mixture of words and pseudowords (nonsense strings that respect the phonotactic rules of a language, like trud in English). Their task is to indicate, usually with a button-press, whether the presented stimulus is a word or not.

REVISION 2

Definition contributed by BGregory about seven years ago:a procedure used in many psychology and psycholinguistics experiments; the basic procedure involves measuring how quickly people classify stimuli as words or nonwords. Subjects are presented, either visually or auditorily, with a mixture of words and pseudowords (nonsense strings that respect the phonotactic rules of a language, like trud in English). Their task is to indicate, usually with a button-press, whether the presented stimulus is a word or not. (from Wikipedia)

REVISION 1

Definition contributed by SAdministrator about eight years ago:No definition submitted yet

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