Unconscious Visual Working Memory: A critical review and Bayesian meta-analysis.

Area of Science:

• Cognitive Neuroscience
• Psychology

Background:

• The relationship between consciousness and working memory (WM) is debated, with evidence for unconscious WM facing methodological challenges.
• Previous findings on unconscious WM are controversial, necessitating a robust evaluation of existing data.

Purpose of the Study:

• To conduct a meta-analytic approach to estimate the effect size and heterogeneity of unconscious WM findings.
• To identify experimental variables, such as consciousness manipulation and WM paradigms, that contribute to heterogeneity in unconscious WM effect sizes.

Main Methods:

• A meta-analytic approach was employed to synthesize behavioral and neural evidence for unconscious WM.
• Meta-regression was used to analyze the impact of specific experimental variables on the reported effect sizes.

Main Results:

• The meta-analysis provides support for the existence of the unconscious WM effect.
• Significant heterogeneity was identified, with specific experimental variables contributing to variations in effect size.

Conclusions:

• The study clarifies theoretical and methodological issues surrounding unconscious WM.
• Recommendations include explicit operationalization of consciousness, standardized methodologies, and systematic exploration of critical variables in future research.