A methodological dilemma for investigating consciousness empirically

Area of Science:

• Neuroscience
• Philosophy of Mind
• Cognitive Science

Background:

• The search for the neural correlate of consciousness (NCC) aims to identify the minimal brain processes sufficient for a specific perception.
• Existing research faces challenges in interpreting correlation data due to conceptual decisions about consciousness, attention, and cognitive access.

Purpose of the Study:

• To expose a fundamental methodological dilemma in the scientific pursuit of the NCC.
• To question the feasibility of obtaining definitive correlations due to inherent interpretive challenges.

Main Methods:

• Conceptual analysis of the relationship between consciousness, attention, cognitive access, and subjective reporting.
• Examination of the limitations of both subjective report paradigms and no-report paradigms in NCC research.

Main Results:

• Relying on subjective reports risks conflating the NCC with neural mechanisms of cognitive access and report generation.
• No-report paradigms may inadvertently isolate neural mechanisms of unconscious processing rather than conscious experience.

Conclusions:

• A significant methodological hurdle exists in isolating the NCC due to the inseparable nature of conscious experience and cognitive functions.
• Current research paradigms may not be sufficient to definitively identify the neural basis of conscious experience.