AndersonI. H.The effect of letter-position on range of apprehension scores, with special reference to reading disability. Univer. Mich. Sch. Educ. Bull., 1946, 18, 37–40.
2.
AulhornO.Die Lesegeschwindigkeit als Function von Buchstaeben und Zeilenlaege. Pflueg. Arch. ges. Physiol., 1948, 250, 12–25.
3.
HarcumE. R.Three inferred factors in the visual recognition of binary targets. In WulfeckJ. W.TaylorJ. H. (Eds.), Form discrimination as related to military problems. Washington, D. C.: Nat. Acad. Sci.-Nat. Res. Coun., 1957. Pp. 32–37. (Publ. 561).
4.
HarcumE. R.Visual recognition along various meridians of the visual field: II. Nine-element typewritten targets. Ann Arbor: Univer. Mich., 1958. (Proj. Michigan Rep. 2144–293-T) (a).
5.
HarcumE. R.Visual recognition along various meridians of the visual field: VI. Eight-element and ten-element binary patterns. Ann Arbor: Univer. Mich., 1958. (Proj. Michigan Rep. 2144–30-T) (b).
6.
HarcumE. R.Visual recognition along various meridians of the visual field: VII. Effect of target length measured in angular units. Ann Arbor: Univer. Mich., 1958. (Proj. Michigan Rep. 2144–304-T) (c).
7.
HarcumE. R.RabeA.Visual recognition along various meridians of the visual field: III. Patterns of blackened circles in an eight-circle template. Ann Arbor: Univer. Mich., 1958. (Proj. Michigan Rep. 2144–294-T).
8.
HeronW.Perception as a function of retinal locus and attention. Amer. J. Psychol., 1957, 70, 38–48.
9.
RenshawS.The visual perception and reproduction of forms by tachistoscopic methods. J. Psychol., 1945, 20, 217–232.
10.
TinkerM. A.Visual apprehension and perception in reading. Psychol. Bull., 1929, 26, 223–240.
11.
WeberC. O.Effects of practice on the perceptual span for letters. J. gen. Psychol., 1942, 26, 347–351.