What is the relation between perceptual awareness and action? In this study we tested the hypothesis that motor response influences perceptual awareness judgements. We used perceptual discrimination task in which presentation of the stimulus was immediately followed by a cue requiring a motor response that was irrelevant to the task but could be the same, opposite, or neutral to the correct response to the stimulus. After responding to the cue, participants rated their stimulus awareness using the Perceptual Awareness Scale, and then carried out their discrimination response. Participants reported a higher level of stimulus awareness after carrying out responses that were either congruent or incongruent with a response required by a stimulus, compared to the neutral condition. The results suggest that motor response overlapping with potential response to the stimulus provides information about the outcome of decision process and increases the reported awareness of stimuli.
The authors would like to thank Michał Wereszczyński for helping with data collection.
This work was supported by the National Science Centre, Poland [grant HARMONIA number 2014/14/M/HS6/00911 given to MW].
- Perception and action
- Perceptual awareness
- Sensorimotor theories of consciousness