Response coding in the Simon task

Recent findings indicate that two distinct mechanisms can contribute to a Simon effect: a visuomotor information transmission on the one hand and a cognitive code interference on the other hand (see for e.g., Wiegand & Wascher, in Journal of Experimental Psychology: Human Perception and Performance 2005a). Furthermore, it was proposed that the occurrence of one or the other mechanism strongly depends on the way responses are coded. Visuomotor information transmission seems to depend on a correspondence between stimulus position and spatial anatomical status of the effector, whereas cognitive code interference is thought to be based on relative response location codes. To further test the spatial anatomic coding hypothesis, three experiments were conducted, in which the Simon effect with unimanual responses was investigated for horizontal (Experiment 1 and 2) and vertical (Experiment 3) stimulus–response (S–R) relations. Based on the finding of a decreasing effect function (indicating the presence of visuomotor information transmission) for horizontal and vertical S–R relations, it was concluded that visuomotor information transmission occurs whenever there is an overlap between the spatial stimulus feature and parameters of the motor representation of the response. Furthermore, the specific motor representation seems to be task dependent, that is, it entails those response parameters that clearly differentiate between the two response alternatives in a given task situation.

[1]  U. Ansorge,et al.  A response-discrimination account of the Simon effect. , 2004, Journal of experimental psychology. Human perception and performance.

[2]  B. Hommel.  Spontaneous decay of response-code activation , 1994, Psychological research.

[3]  R. Proctor,et al.  Does right-left prevalence occur for the Simon effect? , 2003, Perception & psychophysics.

[4]  U. Ansorge.  Influences of response-activating stimuli and passage of time on the Simon effect , 2003, Psychological research.

[5]  B. Hommel.  The relationship between stimulus processing and response selection in the Simon task: Evidence for a temporal overlap , 1993 .

[6]  R. Ratcliff.  Group reaction time distributions and an analysis of distribution statistics. , 1979, Psychological bulletin.

[7]  Robert M. Kantner,et al.  An EEG Study , 1981 .

[8]  A. Osman,et al.  Dimensional overlap: cognitive basis for stimulus-response compatibility--a model and taxonomy. , 1990, Psychological review.

[9]  J. R. Simon,et al.  Auditory S-R compatibility: the effect of an irrelevant cue on information processing. , 1967, The Journal of applied psychology.

[10]  Edmund Wascher,et al.  Dynamic aspects of stimulus-response correspondence: evidence for two mechanisms involved in the Simon effect. , 2005, Journal of experimental psychology. Human perception and performance.

[11]  Daniela Mapelli,et al.  Automatic spatial coding of perceived gaze direction is revealed by the Simon effect , 2003, Psychonomic bulletin & review.

[12]  Wolfgang Prinz,et al.  S-R compatibility and response selection , 1995 .

[13]  Antonino Vallesi,et al.  Horizontal and vertical Simon effect: different underlying mechanisms? , 2005, Cognition.

[14]  U. Ansorge.  Spatial Simon effects and compatibility effects induced by observed gaze direction , 2003 .

[15]  Rolf Verleger,et al.  Validity and boundary conditions of automatic response activation in the Simon task. , 2001, Journal of experimental psychology. Human perception and performance.

[16]  P. Fitts,et al.  S-R compatibility: spatial characteristics of stimulus and response codes. , 1953, Journal of experimental psychology.

[17]  Edmund Wascher,et al.  The Simon effect for vertical S–R relations: changing the mechanism by randomly varying the S–R mapping rule? , 2007, Psychological research.

[18]  E. Soetens,et al.  Control over location-based response activation in the Simon task: behavioral and electrophysiological evidence. , 2002, Journal of experimental psychology. Human perception and performance.

[19]  Bernhard Hommel,et al.  Codes and their vicissitudes , 2001 .

[20]  M. Zorzi,et al.  The role of long-term-memory and short-term-memory links in the Simon effect. , 2000, Journal of experimental psychology. Human perception and performance.

[21]  G. Aschersleben,et al.  The Theory of Event Coding (TEC): a framework for perception and action planning. , 2001, The Behavioral and brain sciences.

[22]  E. Wascher.  The timing of stimulus localisation and the Simon effect: an ERP study , 2005, Experimental Brain Research.

[23]  E. Lauber,et al.  Conditional and unconditional automaticity: a dual-process model of effects of spatial stimulus-response correspondence. , 1994, Journal of experimental psychology. Human perception and performance.

[24]  M. Redondo,et al.  On the automaticity of ipsilateral response activation in the Simon effect. , 1998, Psychophysiology.

[25]  Y. Guiard,et al.  The lateral coding of rotations: a study of the simon effect with wheel-rotation responses. , 1983, Journal of motor behavior.