Visual word recognition
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Orthographic Processing in Visual Word Recognition: A Multiple Read-Out Model
Grainger, Jonathan and Jacobs, Arthur M. (1996) Orthographic Processing in Visual Word Recognition: A Multiple Read-Out Model. [Journal (Paginated)] Full text available as: Abstract A model of orthographic processing is described that postulates read-out from different information dimensions, determined by variable response criteria set on these dimensions. Performance in a perceptual identification task is simulated as the percentage of trials on which a noisy criterion set on the dimension of single word detector activity is reached.
Proceedings of the National Academy of Sciences of the United States of America www.pnas.org As you read these words, a complex sequence of processes are at work in your brain, identifying visual patterns (letters) that are mapped onto familiar units (words), the meanings of which are combined to allow comprehension. In this description, a mental dictionary or lexicon linking word forms (orthography) to word meanings (semantics) plays a central and critical role in the reading process. However, some fundamental questions concerning the functional and neural organization of the mental lexicon remain unanswered. How are words composed of more than one unit (such as darkness ) stored in the lexicon?
Units of representation in visual word recognition — PNAS
word recognition
W ord Recognition by Nick Milton (Nov 1994) Degradation effects can be accounted for in two different ways: (1) A degraded stimulus requires a stage of 'cleaning-up' (or normalising) prior to the lexical system, which adds a fixed time to orthographically similar words irrespective of their frequency (Besner & McCann, 1987); or (2) "The sensitivity of the logogen falls in line with any reduction in stimulus quality" (Mitchell, 1982) i.e. the rate of increase of a logogen's count (aka activation) is slower with a degraded stimulus, because the rate of feature extraction is slowed. The latter proposal would, therefore, predict an interaction effect between stimulus quality and frequency, whereas the former proposal predicts an additive relationship. We shall see later the empirical support for, and against, these predications. Non-word effects are robust findings from LDT experiments which must be accounted for in any comprehensive word recognition model.
Assessment Strategies and Reading Profiles
Word Recognition Word Recognition is the ability of a reader to recognize written words correctly and virtually effortlessly. It is sometimes referred to as "isolated Word Recognition" because it entails a reader's ability to recognize words individually—from a list, for example—without the benefit of surrounding words for contextual help.Raednig thsee wrods semes to be esaeir tahn you mgiht hvae tohuhgt; waht colud epxlian tihs? by Richard Shillcock Introduction
Visual Word Recognition