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Do grading gray stimuli help to encode letter position?

Perea, M., Baciero, A., Marcet, A., Fernández-López, M. and Gomez, P., 2021. Do grading gray stimuli help to encode letter position? Vision, 5 (1), 12.

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vision-05-00012.pdf - Published Version
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DOI: 10.3390/VISION5010012


Numerous experiments in the past decades recurrently showed that a transposed-letter pseudoword (e.g., JUGDE) is much more wordlike than a replacement-letter control (e.g., JUPTE). Critically, there is an ongoing debate as to whether this effect arises at a perceptual level (e.g., perceptual uncertainty at assigning letter position of an array of visual objects) or at an abstract language-specific level (e.g., via a level of “open bigrams” between the letter and word levels). Here, we designed an experiment to test the limits of perceptual accounts of letter position coding. The stimuli in a lexical decision task were presented either with a homogeneous letter intensity or with a graded gray intensity, which indicated an unambiguous letter order. The pseudowords were either transposed-letter pseudowords or replaced-letter pseudowords (e.g., jugde vs. jupte). The results showed much longer response times and substantially more errors in the transposedletter pseudowords than in the replacement-letter pseudowords, regardless of visual format. These findings favor the idea that language-specific orthographic element factors play an essential role when encoding letter position during word recognition.

Item Type:Article
Uncontrolled Keywords:word recognition; letter position coding; perceptual factors; lexical decision; orthographic processing
Group:Faculty of Science & Technology
ID Code:36729
Deposited By: Symplectic RT2
Deposited On:08 Mar 2022 13:51
Last Modified:14 Mar 2022 14:33


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