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Updated: Jun 15, 2025

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
Published on: January 23, 2017
Physical effort modulates perceptual awareness judgment independent of level of processing
Shiming Qiu1, Xiaorong Cheng1, Zelin Cheng1
1Central China Normal University, School of Psychology,430079 Wuhan, China; Key Laboratory of Adolescent Cyberpsychology and Behavior (CCNU), Ministry of Education, 430079 Wuhan, China; Key Laboratory of Human Development and Mental Health of Hubei Province, 430079 Wuhan, China.
Abstract:
Recent studies have emphasized the association between action and perceptual awareness, suggesting that action-related information can contribute to perceptual awareness. Given that the Level of Processing (LoP) hypothesis proposes that the emergence of awareness depends on the level of stimulus processing, the current study examines whether action impacts perceptual awareness across different processing levels. In Experiment 1, participants identified target stimuli's color (low-level task) or category (high-level task) via mouse clicks, followed by visual awareness ratings. Experiment 2 replicated the tasks using hand-grip dynamometers. Results from Experiment 1 support the LoP theory, showing a more gradual emergence of awareness for low-level features and a more dichotomous emergence for high-level features. In Experiment 2, higher reported visual awareness ratings were observed at greater physical effort, regardless of task type. These results suggest that action-related information influences reported awareness of stimuli in the same way at low- and high-level stimulus processing.
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