Dissociating Seeing and Knowing in Time.
Tue—HZ_8—Talks5—4404
Presented by: Zefan Zheng
Blindsight research highlights a dissociation between subjective seeing (visibility) and objective knowing (discrimination accuracy), though this phenomenon has been difficult to demonstrate in healthy individuals. We propose a novel temporal approach to examining this dissociation by analyzing the autocorrelation functions of visibility, confidence, and accuracy across 18 existing datasets (N=378). We demonstrate that subjective measures (visibility and confidence) exhibit a robust exponential decay in the autocorrelation function, contrasting with the linear decay observed in objective accuracy. This dissociation is particularly pronounced for foveal stimuli but absent for parafoveal stimuli, potentially suggesting a retinotopic dependency.
Through meta-analyses and seven contrasts between datasets, we identify the effects of seven experimental parameters—such as response feedback, task duration, and rating scales—on the autocorrelation functions. Simulations suggest these patterns arise from an aperiodic fluctuation in perceptual thresholds with exponentially weighted temporal dependencies.
Our findings provide a highly replicable and generalizable behavioral dissociation between subjective and objective measures of perception, offering a methodological advance for future research on the neural correlates of consciousness (NCC). This work emphasizes the role of temporal dynamics in understanding consciousness and cognition, offering a robust framework for disentangling subjective and objective aspects of perception in healthy populations.
Through meta-analyses and seven contrasts between datasets, we identify the effects of seven experimental parameters—such as response feedback, task duration, and rating scales—on the autocorrelation functions. Simulations suggest these patterns arise from an aperiodic fluctuation in perceptual thresholds with exponentially weighted temporal dependencies.
Our findings provide a highly replicable and generalizable behavioral dissociation between subjective and objective measures of perception, offering a methodological advance for future research on the neural correlates of consciousness (NCC). This work emphasizes the role of temporal dynamics in understanding consciousness and cognition, offering a robust framework for disentangling subjective and objective aspects of perception in healthy populations.
Keywords: Consciousness, Visibility, Accuracy, Autocorrelation function, Blindsight