TY  - JOUR
A1  - Yan, Ming
A1  - Pan, Jinger
A1  - Laubrock, Jochen
A1  - Kliegl, Reinhold
A1  - Shu, Hua
T1  - Parafoveal processing efficiency in rapid automatized naming a comparison between Chinese normal and dyslexic children
JF  - Journal of experimental child psychology
N2  - Dyslexic children are known to be slower than normal readers in rapid automatized naming (RAN). This suggests that dyslexics encounter local processing difficulties, which presumably induce a narrower perceptual span. Consequently, dyslexics should suffer less than normal readers from removing parafoveal preview. Here we used a gaze-contingent moving window paradigm in a RAN task to experimentally test this prediction. Results indicate that dyslexics extract less parafoveal information than control children. We propose that more attentional resources are recruited to the foveal processing because of dyslexics' less automatized translation of visual symbols into phonological output, thereby causing a reduction of the perceptual span. This in turn leads to less efficient preactivation of parafoveal information and, hence, more difficulty in processing the next foveal item.
KW  - Dyslexia
KW  - Eye movement
KW  - Perceptual span
KW  - Rapid automatized naming
KW  - Parafoveal processing
KW  - Linear mixed model
Y1  - 2013
U6  - https://doi.org/10.1016/j.jecp.2013.01.007
SN  - 0022-0965
VL  - 115
IS  - 3
SP  - 579
EP  - 589
PB  - Elsevier
CY  - San Diego
ER  - 
TY  - JOUR
A1  - Shu, Hua
A1  - Zhou, Wei
A1  - Yan, Ming
A1  - Kliegl, Reinhold
T1  - Font size modulates saccade-target selection in Chinese reading
JF  - Attention, perception, & psychophysics : AP&P ; a journal of the Psychonomic Society, Inc.
N2  - In alphabetic writing systems, saccade amplitude (a close correlate of reading speed) is independent of font size, presumably because an increase in the angular size of letters is compensated for by a decrease of visual acuity with eccentricity. We propose that this invariance may (also) be due to the presence of spaces between words, guiding the eyes across a large range of font sizes. Here, we test whether saccade amplitude is also invariant against manipulations of font size during reading Chinese, a character-based writing system without spaces as explicit word boundaries for saccade-target selection. In contrast to word-spaced alphabetic writing systems, saccade amplitude decreased significantly with increased font size, leading to an increase in the number of fixations at the beginning of words and in the number of refixations. These results are consistent with a model which assumes that word beginning (rather than word center) is the default saccade target if the length of the parafoveal word is not available.
KW  - Eye movement
KW  - Saccade
KW  - Chinese
KW  - Font size
Y1  - 2011
U6  - https://doi.org/10.3758/s13414-010-0029-y
SN  - 1943-3921
VL  - 73
IS  - 2
SP  - 482
EP  - 490
PB  - Springer
CY  - New York
ER  -