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Related Experiment Videos

Between-Subject Variability in the Breaking Continuous Flash Suppression Paradigm: Potential Causes, Consequences,

Surya Gayet1, Timo Stein2

  • 1Department of Experimental Psychology, Utrecht Univeristy Utrecht, Netherlands.

Frontiers in Psychology
|April 12, 2017
PubMed
Summary

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Journal of cognitive neuroscience·2026

Researchers found that reaction times in breaking continuous flash suppression (b-CFS) tasks are linked to overall suppression duration and variability. A new latency-normalization method is proposed to improve analysis of conscious access in these studies.

Area of Science:

  • Cognitive Neuroscience
  • Psychology
  • Consciousness Research

Background:

  • Investigating how non-conscious visual information gains access to consciousness is a key area in consciousness research.
  • The breaking continuous flash suppression (b-CFS) paradigm is a critical tool for measuring conscious access, with reaction times (RTs) indicating when a suppressed stimulus becomes conscious.

Purpose of the Study:

  • To investigate the relationship between trial-to-trial variability in RTs and overall suppression duration in b-CFS tasks.
  • To propose and evaluate a latency-normalization method for analyzing RT differences in b-CFS studies.

Main Methods:

  • Re-analysis of existing and new datasets using the b-CFS paradigm.
  • Application and comparison of a novel latency-normalization method against z-transformations and log-transformations for within-subject RT data.
Keywords:
assumption of normalitybinocular rivalryconsciousnesscontinuous flash suppressionindividual differencesnormalizationresponse timesvisual awareness

Related Experiment Videos

  • Exploration of the correlation between RT differences and overall suppression durations/trial-to-trial variability.

    • Main Results:

    • The magnitude of effects in b-CFS tasks (e.g., face inversion, working memory match effects) is highly correlated with participants' overall suppression durations and their RT variability.
    • The proposed latency-normalization method effectively removes between-subject variability in suppression duration and yields distributions suitable for parametric testing.
    • Latency-normalization demonstrates advantages over traditional z- and log-transformations for analyzing b-CFS data.

    Conclusions:

    • Overall suppression duration and trial-to-trial RT variability are significant factors influencing conscious access measurements in b-CFS.
    • Latency-normalization is a valuable method for improving the statistical power and interpretability of b-CFS studies.
    • These findings suggest that prolonged phases of shallow suppression may be more susceptible to modulations of conscious access.