Dissociation of Semantic Priming, Word and Non-Word Repetition Effects by Event-Related Potentials

Two experiments investigated the modulation of event-related potentials (ERPs) by semantic priming and item repetition. In Experiment 1, subjects silently counted occasional non-words against a background of words, a proportion of which were either semantic associates or repetitions of a preceding word. Compared to control items, ERPs to repeated words were distinguished by an early (ca. 200 msec) transient negative-going deflection and a later, topographically widespread and temporally sustained positive-going shift. In contrast, semantically primed words showed a relatively small, topographically and temporally limited positive-going modulation peaking around 500 msec. These data were interpreted as evidence against models of priming and repetition which postulate similar loci for these effects. In Experiment 2, subjects counted occasional words against a background of non-words, some of which were repeated. ERPs to repetitions showed a similar early ERP modulation to that in Experiment 1, and also displayed a later slow positive shift. This latter effect was smaller in magnitude and had a delayed onset in comparison to Experiment 1. It was concluded that the effects of repetition differ as a consequence of whether, prior to their first presentation, items possess a representation in lexical memory.

[1]  Don L. Scarborough,et al.  Frequency and Repetition Effects in Lexical Memory. , 1977 .

[2]  Gary L. Dannenbring,et al.  Semantic priming and word repetition: The two effects are additive , 1985 .

[3]  John J. L. Morton,et al.  Interaction of information in word recognition. , 1969 .

[4]  J. Wilding.  Joint Effects of Semantic Priming and Repetition in a Lexical Decision Task: Implications for a Model of Lexical Access , 1986 .

[5]  John Morton,et al.  Facilitation in Word Recognition: Experiments Causing Change in the Logogen Model , 1979 .

[6]  G. Humphreys,et al.  The Use of Abstract Graphemic Information in Lexical Access , 1981 .

[7]  G. McCarthy,et al.  Augmenting mental chronometry: the P300 as a measure of stimulus evaluation time. , 1977, Science.

[8]  Annette M. B. de Groot,et al.  Word-context effects in word naming and lexical decision , 1985 .

[9]  H J Keselman,et al.  Repeated measures F tests and psychophysiological research: controlling the number of false positives. , 1980, Psychophysiology.

[10]  C. C. Wood,et al.  Event-related potentials, lexical decision and semantic priming. , 1985, Electroencephalography and clinical neurophysiology.

[11]  Salim Roukos,et al.  Brain potentials related to stages of sentence verification. , 1983, Psychophysiology.

[12]  M. Kutas,et al.  Reading senseless sentences: brain potentials reflect semantic incongruity. , 1980, Science.

[13]  E. Donchin,et al.  On the dependence of P300 latency on stimulus evaluation processes. , 1984, Psychophysiology.

[14]  M. Kutas,et al.  Electrophysiology of cognitive processing. , 1983, Annual review of psychology.

[15]  M. Rugg,et al.  Lexical contribution to nonword-repetition effects: Evidence from event-related potentials , 1987, Memory & cognition.

[16]  M. Rugg.  The effects of semantic priming and work repetition on event-related potentials. , 1985, Psychophysiology.

[17]  E Donchin,et al.  A metric for thought: a comparison of P300 latency and reaction time. , 1981, Science.

[18]  James L. McClelland.  On the time relations of mental processes: An examination of systems of processes in cascade. , 1979 .

[19]  C. Fowler,et al.  Relations among regular and irregular morphologically related words in the lexicon as revealed by repetition priming , 1985, Memory & cognition.

[20]  A. D. Groot,et al.  Primed Lexical Decision: Combined Effects of the Proportion of Related Prime-Target Pairs and the Stimulus-Onset Asynchrony of Prime and Target , 1984 .

[21]  L. Henderson.  Orthography and Word Recognition in Reading , 1982 .

[22]  W. Pritchard.  Psychophysiology of P300. , 1981, Psychological bulletin.

[23]  C. Eriksen,et al.  A psychophysiological investigation of the continuous flow model of human information processing. , 1985, Journal of experimental psychology. Human perception and performance.

[24]  S. Kinoshita,et al.  Nonword Facilitation in a Lexical Decision Task , 1985 .

[25]  A. Salasoo,et al.  Building permanent memory codes: codification and repetition effects in word identification. , 1985, Journal of experimental psychology. General.

[26]  Gary L. Dannenbring,et al.  Semantic priming and the word repetition effect in a lexical decision task. , 1982 .

[27]  M. Kutas,et al.  The lateral distribution of event-related potentials during sentence processing , 1982, Neuropsychologia.

[28]  K. Forster.  Priming and the Effects of Sentence and Lexical Contexts on Naming Time: Evidence for Autonomous Lexical Processing* , 1981 .

[29]  M. Kutas,et al.  Brain potentials during reading reflect word expectancy and semantic association , 1984, Nature.

[30]  L. Postman,et al.  Norms of word association , 1970 .

[31]  K. Forster,et al.  REPETITION PRIMING AND FREQUENCY ATTENUATION IN LEXICAL ACCESS , 1984 .

[32]  R M Shiffrin,et al.  Episodic and lexical contributions to the repetition effect in word identification. , 1983, Journal of experimental psychology. General.

[33]  D. Palermo.  Norms of Word Association. , 1971 .

[34]  L. Jacoby.  Perceptual enhancement: persistent effects of an experience. , 1983, Journal of experimental psychology. Learning, memory, and cognition.

[35]  Mark S. Seidenberg,et al.  Pre- and postlexical loci of contextual effects on word recognition , 1984, Memory & cognition.

[36]  Veronica J. Dark,et al.  Perceptual Fluency and Recognition Judgments , 1985 .