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Unconscious context-specific proportion congruency effect in a stroop-like task.

A Panadero1, M C Castellanos1, P Tudela2

  • 1Brain, Mind and Behavior Research Center (CIMCYC), University of Granada, Granada, Spain.

Consciousness and Cognition
|December 3, 2014
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Summary
This summary is machine-generated.

Cognitive control, specifically the context-specific proportion congruency effect (CSPCE), may operate unconsciously. Our study found evidence for an unconscious CSPCE using electrophysiological measures in a masked Stroop-like task.

Keywords:
AwarenessContext-specific proportion congruency effect (CSPCE)Stroop-like taskUnconscious cognitive control

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Area of Science:

  • Psychology
  • Cognitive Neuroscience
  • Cognitive Control

Background:

  • Cognitive control is traditionally linked to consciousness.
  • Emerging research suggests cognitive control may function unconsciously.
  • The conflict adaptation effect, particularly the CSPCE, is a key area for exploring unconscious control.

Purpose of the Study:

  • To investigate the unconscious nature of the context-specific proportion congruency effect (CSPCE).
  • To explore the neural correlates of unconscious CSPCE using electrophysiological measures.

Main Methods:

  • A masked Stroop-like task was employed.
  • The proportion of congruency was manipulated using various masks.
  • Electrophysiological measures (EEG) were used to record neural activity.

Main Results:

  • Evidence for an unconscious CSPCE was observed in reaction times (RTs).
  • The N2 and P3 electrophysiological components showed evidence of unconscious CSPCE.
  • The P2 component indicated that proportion of congruency was processed before target congruency.

Conclusions:

  • The study provides evidence supporting an unconscious CSPCE.
  • Findings suggest that cognitive control mechanisms, including adaptation to conflict, can operate outside of conscious awareness.