Comparing reading speed for horizontal and vertical English text.

There are three formats for arranging English text for vertical reading-upright letters arranged vertically (marquee), and horizontal text rotated 90 degrees clockwise or counterclockwise. Previous research has shown that reading is slower for all three vertical formats than for horizontal text, with marquee being slowest (M. D. Byrne, 2002). It has been proposed that the size of the visual span-the number of letters recognized with high accuracy without moving the eyes-is a visual factor limiting reading speed. We predicted that reduced visual-span size would be correlated with the slower reading for the three vertical formats. We tested this prediction with uppercase and lowercase letters. Reading performance was measured using two presentation methods: RSVP (Rapid Serial Visual Presentation) and flashcard (a block of text on four lines). On average, reading speed for horizontal text was 139% faster than marquee text and 81% faster than the rotated texts. Size of the visual span was highly correlated with changes in reading speed for both lowercase and uppercase letters and for both RSVP and flashcard reading. Our results are consistent with the view that slower reading of vertical text is due to a decrease in the size of the visual span for vertical reading.

[1]  Miles A. Tinker,et al.  Influence of type form on speed of reading. , 1928 .

[2]  Miles A. Tinker,et al.  Studies of typographical factors influencing speed of reading. III. Length of line. , 1929 .

[3]  M. Tinker,et al.  The influence of form of type on the perception of words. , 1932 .

[4]  M. Mishkin,et al.  Word recognition as a function of retinal locus. , 1952, Journal of experimental psychology.

[5]  W. A. Winnick,et al.  Right-Left Differences in Tachistoscopic Identification of Paralogs as a Function of Order of Approximation to English Letter Sequences , 1965, Perceptual and motor skills.

[6]  H. Goodglass,et al.  Differential Recognition of Tachistoscopically Presented English and Hebrew Words in Right and Left Visual Fields , 1965, Perceptual and motor skills.

[7]  M. P. Bryden,et al.  Left-right differences in tachistoscopic recognition as a function of familiarity and pattern orientation. , 1970 .

[8]  H. Bouma.  Visual interference in the parafoveal recognition of initial and final letters of words. , 1973, Vision research.

[9]  C. R. Henderson,et al.  Best linear unbiased estimation and prediction under a selection model. , 1975, Biometrics.

[10]  J. Juola,et al.  Visual search and reading of rapid serial presentations of letter strings, words, and text. , 1982 .

[11]  A Koriat,et al.  What is rotated in mental rotation? , 1984, Journal of experimental psychology. Learning, memory, and cognition.

[12]  J. A. Kraut,et al.  Clinical Low Vision , 1985 .

[13]  J. Norman,et al.  Reading rotated words. , 1985, Journal of experimental psychology. Human perception and performance.

[14]  Gordon E. Legge,et al.  Psychophysics of reading—II. Low vision , 1985, Vision Research.

[15]  E Peli,et al.  Control of eye movement with peripheral vision: implications for training of eccentric viewing. , 1986, American journal of optometry and physiological optics.

[16]  J. Norman,et al.  Why is word recognition impaired by disorientation while the identification of single letters is not? , 1989, Journal of experimental psychology. Human perception and performance.

[17]  GORDON E. LEGGE,et al.  Psychophysics of Reading. VIII. The Minnesota Low- Vision Reading Test , 1989, Optometry and vision science : official publication of the American Academy of Optometry.

[18]  D. Bates,et al.  Nonlinear mixed effects models for repeated measures data. , 1990, Biometrics.

[19]  Robin Thompson,et al.  [That BLUP is a Good Thing: The Estimation of Random Effects]: Comment , 1991 .

[20]  G. Robinson.  That BLUP is a Good Thing: The Estimation of Random Effects , 1991 .

[21]  D. Levi,et al.  The two-dimensional shape of spatial interaction zones in the parafovea , 1992, Vision Research.

[22]  G E Legge,et al.  Psychophysics of reading. Clinical predictors of low-vision reading speed. , 1992, Investigative ophthalmology & visual science.

[23]  James Gaston Bloodsworth.  Legibility of Print. , 1993 .

[24]  D. Ullrich,et al.  Horizontal and vertical reading: a comparative investigation of eye movements. , 1993, German journal of ophthalmology.

[25]  E Peli,et al.  Scrolled and rapid serial visual presentation texts are read at similar rates by the visually impaired. , 1995, Journal of the Optical Society of America. A, Optics, image science, and vision.

[26]  P. Cavanagh,et al.  Attentional resolution and the locus of visual awareness , 1996, Nature.

[27]  G. Rubin,et al.  Fixation patterns and reading rates in eyes with central scotomas from advanced atrophic age-related macular degeneration and Stargardt disease. , 1996, Ophthalmology.

[28]  H. Babkoff,et al.  Lexical decision, visual hemifield and angle of orientation , 1997, Neuropsychologia.

[29]  G. Legge,et al.  Mr. Chips: an ideal-observer model of reading. , 1997, Psychological review.

[30]  D H Brainard,et al.  The Psychophysics Toolbox. , 1997, Spatial vision.

[31]  R. Schuchard,et al.  Preferred retinal loci relationship to macular scotomas in a low-vision population. , 1997, Ophthalmology.

[32]  D G Pelli,et al.  The VideoToolbox software for visual psychophysics: transforming numbers into movies. , 1997, Spatial vision.

[33]  Gordon E. Legge,et al.  Psychophysics of reading. XVIII. The effect of print size on reading speed in normal peripheral vision , 1998, Vision Research.

[34]  C. Frennesson,et al.  Location and Stability of a Newly Established Eccentric Retinal Locus Suitable for Reading, Achieved through Training of Patients with a Dense Central Scotoma , 1998, Optometry and vision science : official publication of the American Academy of Optometry.

[35]  R A Schuchard,et al.  Relative locations of macular scotomas near the PRL: effect on low vision reading. , 1999, Journal of rehabilitation research and development.

[36]  M. Carrasco,et al.  Characterizing visual performance fields: effects of transient covert attention, spatial frequency, eccentricity, task and set size. , 2001, Spatial vision.

[37]  V. Carey,et al.  Mixed-Effects Models in S and S-Plus , 2001 .

[38]  Gordon E Legge,et al.  Psychophysics of reading XX. Linking letter recognition to reading speed in central and peripheral vision , 2001, Vision Research.

[39]  Michal Lavidor,et al.  Analysis of standard and non-standard visual word format in the two hemispheres , 2001, Neuropsychologia.

[40]  M. Carrasco,et al.  Vertical meridian asymmetry in spatial resolution: Visual and attentional factors , 2002, Psychonomic bulletin & review.

[41]  G. Legge,et al.  Mr. Chips 2002: new insights from an ideal-observer model of reading , 2002, Vision Research.

[42]  Susana T. L. Chung.  The effect of letter spacing on reading speed in central and peripheral vision. , 2002, Investigative ophthalmology & visual science.

[43]  M. Kalloniatis,et al.  Left–right word recognition asymmetries in central and peripheral vision , 2002, Vision Research.

[44]  Michael D. Byrne,et al.  Reading Vertical Text: Rotated VS. marquee , 2002 .

[45]  Manuel Perea,et al.  Does “whole-word shape” play a role in visual word recognition? , 2002, Perception & psychophysics.

[46]  Gordon E Legge,et al.  Preneural limitations on letter identification in central and peripheral vision. , 2002, Journal of the Optical Society of America. A, Optics, image science, and vision.

[47]  J. Pynte,et al.  Word-shape and word-lexical-frequency effects in lexical-decision and naming tasks , 2003 .

[48]  C. Frennesson,et al.  Patients with AMD and a large absolute central scotoma can be trained successfully to use eccentric viewing, as demonstrated in a scanning laser ophthalmoscope , 2003, Vision Research.

[49]  Albrecht W. Inhoff,et al.  Orthographic regularity gradually modulates saccade amplitudes in reading , 2004 .

[50]  Gordon E. Legge,et al.  Letter-recognition and reading speed in peripheral vision benefit from perceptual learning , 2004, Vision Research.

[51]  George T Timberlake,et al.  Retinal Location of the Preferred Retinal Locus Relative to the Fovea in Scanning Laser Ophthalmoscope Images , 2005, Optometry and vision science : official publication of the American Academy of Optometry.

[52]  Michael W. Levine,et al.  The relative capabilities of the upper and lower visual hemifields , 2005, Vision Research.

[53]  Gordon E. Legge,et al.  Psychophysics of Reading in Normal and Low Vision , 2006 .

[54]  Ronald A Schuchard,et al.  Effects of preferred retinal locus placement on text navigation and development of advantageous trained retinal locus. , 2006, Journal of rehabilitation research and development.

[55]  Sing-Hang Cheung,et al.  Effect of letter spacing on visual span and reading speed. , 2007, Journal of vision.

[56]  Michael W. Levine,et al.  Magnocellular and parvocellular visual pathway contributions to visual field anisotropies , 2007, Vision Research.

[57]  Aries Arditi,et al.  Letter case and text legibility in normal and low vision , 2007, Vision Research.

[58]  D. Bates,et al.  Model Building for Nonlinear Mixed Effects Models , 2007 .

[59]  Tracey D. Berger,et al.  Crowding and eccentricity determine reading rate. , 2007, Journal of vision.

[60]  Developmental changes in the visual span for reading , 2007, Vision Research.

[61]  Sing-Hang Cheung,et al.  The case for the visual span as a sensory bottleneck in reading. , 2007, Journal of vision.

[62]  G. Legge,et al.  Size of the visual span may explain reading-speed differences for horizontal and vertical text , 2007 .

[63]  Sheng He,et al.  Horizontal and vertical asymmetry in visual spatial crowding effects. , 2007, Journal of vision.

[64]  G. Legge,et al.  Nonlinear mixed-effects modeling of MNREAD data. , 2008, Investigative ophthalmology & visual science.

[65]  E. Cameron.  Perceptual inhomogeneities in the upper visual field , 2010 .

[66]  Gordon E. Legge,et al.  Development of a training protocol to improve reading performance in peripheral vision , 2010, Vision Research.