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From The Cover
PSYCHOLOGY
Continuous attraction toward phonological competitors

Michael J. Spivey ^*, , Marc Grosjean ^,  , and Günther Knoblich ^, ¶

^*Department of Psychology, Cornell University, Ithaca, NY 14853; Department of Psychology, Max Planck Institute for Human Cognitive and Brain Sciences, Amalienstrasse 33, Munich 80799 Germany; and ^¶Department of Psychology, Rutgers, The State University of New Jersey, Newark, NJ 07102

Communicated by James L. McClelland, Carnegie Mellon University, Pittsburgh, PA, May 10, 2005 (received for review January 28, 2005)

Certain models of spoken-language processing, like those for many other perceptual and cognitive processes, posit continuous uptake of sensory input and dynamic competition between simultaneously active representations. Here, we provide compelling evidence for this continuity assumption by using a continuous response, hand movements, to track the temporal dynamics of lexical activations during real-time spoken-word recognition in a visual context. By recording the streaming x, y coordinates of continuous goal-directed hand movement in a spoken-language task, online accrual of acoustic–phonetic input and competition between partially active lexical representations are revealed in the shape of the movement trajectories. This hand-movement paradigm allows one to project the internal processing of spoken-word recognition onto a two-dimensional layout of continuous motor output, providing a concrete visualization of the attractor dynamics involved in language processing.

dynamical systems | psycholinguistics | word recognition

See Commentary on page 9995.

Present address: Institute for Occupational Physiology, University of Dortmund, Ardeystrasse 67, 44139 Dortmund, Germany.

To whom correspondence may be addressed. E-mail: spivey{at}cornell.edu, grosjean{at}cbs.mpg.de, or knoblich{at}psychology.rutgers.edu.

© 2005 by The National Academy of Sciences of the USA

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