Uppercase Words Research Articles

Orthographic regularity, positional frequency, and visual processing of letter strings: a reply to Krueger's comments.

In reply to Krueger, we address the issues of lowercase versus uppercase letter strings, words versus pseudowords, repeated letters in the test string, descriptions of orthographic structure, similarity effects, apples and oranges, and interactions of age with other variables.

The effects of letter size, case, and generation method on CRT display search time.

The effects of letter size, case, and generation method were studied in a task of searching for a common five-letter word in a CRT display. Symbol sizes of 0.12, 0.14, and 0.16 in. were evaluated. Words were composed of all uppercase or all lowercase letters. Two symbol generation methods-letters drawn by means of continuous strokes and by means of a seven-wide-by-nine-high pattern of dots in a fixed matrix-were investigated. The results indicated that for both methods of symbol generation, uppercase words were searched 13% faster than lowercase words. No significant differences were found due to symbol generation method or letter size.