Illusory words: the roles of attention and of top-down constraints in conjoining letters to form words.

When attention is divided among four briefly exposed syllables, subjects mistakenly detect targets whose letters are present in the display but in the wrong combinations. These illusory conjunctions are somewhat more frequent when the target is a word and when the distractors are nonwords, but the effects of lexical status are small, and no longer reach significance in free report of the same displays. Search performance is further impaired if the nonwords are unpronounceable consonant strings rather than consonant-vowel-consonant strings, but the decrement is due to missed targets rather than to increased conjunction errors. The results are discussed in relation to feature-integration theory and to current models of word perception.

[1]  G. M. Reicher.  Perceptual recognition as a function of meaninfulness of stimulus material. , 1969, Journal of experimental psychology.

[2]  F. Smith,et al.  The effect of type size and case alternation on word identification. , 1969, The American journal of psychology.

[3]  F. Smith,et al.  Familiarity of configuration vs discriminability of features in the visual identification of words , 1969 .

[4]  D. D. Wheeler.  Processes in word recognition , 1970 .

[5]  J. Jonides,et al.  A conceptual category effect in visual search: O as letter or as digit , 1972 .

[6]  Howard E. Egeth,et al.  Parallel processing of multielement displays , 1972 .

[7]  M. Turvey.  On peripheral and central processes in vision: inferences from an information-processing analysis of masking with patterned stimuli. , 1973, Psychological review.

[8]  M. Coltheart,et al.  Case alternation impairs word identification , 1974 .

[9]  James F. Juola,et al.  Letter identification in word, nonword, and single-letter displays , 1974 .

[10]  L. Manelis.  The effect of meaningfulness in tachistoscopic word perception , 1974 .

[11]  D. F. Fisher,et al.  Reading and visual search , 1975, Memory & cognition.

[12]  W. Estes.  The Locus of Inferential and Perceptual Processes in Letter Identification. , 1975 .

[13]  M. Mason.  Reading Ability and Letter Search Time: Effects of Orthographic Structure Defined by Single-Letter Positional Frequency. , 1975 .

[14]  Neal F. Johnson,et al.  On the function of letters in word identification: Some data and a preliminary model , 1975 .

[15]  K. T. Spoehr,et al.  The role of orthographic and phonotactic rules in perceiving letter patterns. , 1975, Journal of experimental psychology. Human perception and performance.

[16]  J. L. Mcclelland.  Preliminary letter identification in the perception of words and nonwords. , 1976, Journal of experimental psychology. Human perception and performance.

[17]  Lawrence C. Sager,et al.  Perception of wholes and of their component parts: some configural superiority effects. , 1977, Journal of experimental psychology. Human perception and performance.

[18]  Elizabeth L Bjork,et al.  On the nature of input channels in visual processing. , 1977, Psychological review.

[19]  James L. McClelland,et al.  The role of familiar units in perception of words and nonwords , 1977 .

[20]  W. Kintsch,et al.  Memory and cognition , 1977 .

[21]  B. Bergum,et al.  Attention and Performance VI , 1978 .

[22]  T. Carr,et al.  Perceptual flexibility in word recognition: strategies affect orthographic computation but not lexical access. , 1978, Journal of experimental psychology. Human perception and performance.

[23]  M. Coltheart.  Lexical access in simple reading tasks , 1978 .

[24]  Marilyn Jager Adams,et al.  Models of word recognition , 1979, Cognitive Psychology.

[25]  C. Eriksen,et al.  Word unitization examined using an interference paradigm , 1979 .

[26]  W. O’hara,et al.  Evidence in support of word unitization , 1980, Perception & Psychophysics.

[27]  G. Underwood.  Strategies of information processing , 1980 .

[28]  M A Just,et al.  A theory of reading: from eye fixations to comprehension. , 1980, Psychological review.

[29]  A. Treisman,et al.  A feature-integration theory of attention , 1980, Cognitive Psychology.

[30]  J. Requin.  Attention and Performance VII , 1980 .

[31]  Howard E. Egeth,et al.  Conceptual and perceptual components of interletter inhibition. , 1981 .

[32]  J. Lappin,et al.  Visual detection of multi-letter patterns. , 1981, Journal of experimental psychology. Human perception and performance.

[33]  W Prinzmetal,et al.  Principles of feature integration in visual perception , 1981, Perception & psychophysics.

[34]  James L. McClelland,et al.  An interactive activation model of context effects in letter perception: I. An account of basic findings. , 1981 .

[35]  Carol A. Fowler,et al.  Lexical access with and without awareness , 1981 .

[36]  A. Treisman,et al.  Illusory conjunctions in the perception of objects , 1982, Cognitive Psychology.

[37]  J. H. Bertera,et al.  The availability of useful information to the right of fixation in reading , 1982, Perception & psychophysics.

[38]  M. Mozer.  Letter migration in word perception. , 1983, Journal of experimental psychology. Human perception and performance.

[39]  D. Kahneman,et al.  Tests of the automaticity of reading: dilution of Stroop effects by color-irrelevant stimuli. , 1983, Journal of experimental psychology. Human perception and performance.

[40]  A. Marcel.  Conscious and unconscious perception: Experiments on visual masking and word recognition , 1983, Cognitive Psychology.

[41]  W. Prinzmetal,et al.  Cognitive and linguistic factors affect visual feature integration , 1984, Cognitive Psychology.

[42]  Raja Parasuraman,et al.  Varieties of attention , 1984 .

[43]  A. Treisman,et al.  Emergent features, attention, and object perception. , 1984, Journal of experimental psychology. Human perception and performance.

[44]  A. Treisman,et al.  Search asymmetry: a diagnostic for preattentive processing of separable features. , 1985, Journal of experimental psychology. General.

[45]  James L. McClelland.  Putting Knowledge in its Place: A Scheme for Programming Parallel Processing Structures on the Fly , 1988, Cogn. Sci..

[46]  M. Mozer,et al.  Perceptual interactions in two-word displays: familiarity and similarity effects. , 1986, Journal of experimental psychology. Human perception and performance.