The Effect of Discordant Sensory Information in Graphic Production: Two Distinct Subject Groups

Gullaud-Toussaint, L. & Vinter, A. (2003). Psychological Research, 67, 291-302.

Researchers used a mirror drawing task with adult subjects to examine the processes used to cope with discordant sensory information. The subjects were requested to copy geometric figures in a normal and mirror drawing condition to determine their preferences for dealing with the mirror drawing task. One group of subjects used the visual information to complete the drawings and reversed direction when drawing in the mirror condition, while the other group maintained their typical drawing pattern as in the normal condition; therefore, reversing the visual information from the mirror. The vision directed group was found to have slower movements, greater movement dysfluency, longer pauses, but greater spatial accuracy. The other group demonstrated longer reaction time, and greater angular accuracy. After creating the groups, further information was gathered to determine if the two different strategies were due to differences in coping with visual—proprioceptive discordances. The researchers found that there were two distinct methods of information processing when dealing with sensory discordances.

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