No difference between conscious and nonconscious visuomotor control: evidence from perceptual learning in the masked prime task |
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Authors: | Schlaghecken Friederike Blagrove Elisabeth Maylor Elizabeth A |
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Institution: | Department of Psychology, University of Warwick, Coventry CV4 7AL, UK. f.schlaghecken@warwick.ac.uk |
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Abstract: | Negative compatibility effects (NCEs) in the masked-prime paradigm are usually obtained when primes are masked effectively. With ineffective masks-and primes above the perceptual threshold-positive compatibility effects (PCEs) occur. We investigated whether this pattern reflects a causal relationship between conscious awareness and low-level motor control, or whether it reflects the fact that both are affected in the same way by changes in physical stimulus attributes. In a 5-session perceptual learning task, participants learned to consciously identify masked primes. However, they showed unaltered NCEs that were not different from those produced by participants in a control group without equivalent perceptual learning. A control experiment demonstrated that no NCEs occur when prime identification is made possible by ineffective masking. The results suggest that perceptual awareness and low-level motor control are affected by the same factors, but are fundamentally independent of each other. |
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