The dimensionality of the flanker compatibility effect: a psychophysiological analysis
Related Experiment Video
Updated: Oct 9, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
Published on: June 3, 2013
L R Fournier1, M K Scheffers, M G Coles
1Department of Psychology, Washington State University, Pullman 99164, USA. fournier@wsunix.wsu.edu
Abstract:
The psychophysiological approach was used to evaluate the effects of feature similarity and "intrinsic response mapping" on the flanker compatibility effect. Symbol (e.g., < > < and <) and letter arrays (e.g., HCH and SCS) were used. Results showed that delays in stimulus evaluation and both peripheral and central response competition contributed to the compatibility effect, with the contribution of these processes depending on feature similarity and the intrinsic response mapping of the stimuli. For letter stimuli, the difference in the size of the compatibility effect for similar and dissimilar arrays could be accounted for in terms of stimulus evaluation. For symbol arrays, differences in size of the compatibility effect could be accounted for by response competition. Thus, symbol and letter arrays do not appear to be processed differently; what is different is the degree to which stimulus and response-related processes are affected by incompatibility.
Related Concept Videos
Facial Feedback Hypothesis
Causes of Similarity-Dissimilarity Effect

