Investigating what felt shapes look like

Area of Science:

• Neuroscience
• Philosophy of Mind
• Cognitive Science

Background:

• Molyneux's question explores cross-modal perception: can a person blind from birth identify a shape by touch if they have previously only seen it?
• A recent empirical study suggested a negative answer, but its methodology was questioned due to insufficient visual acuity in subjects.

Purpose of the Study:

• To critically evaluate proposed improvements to empirical studies addressing Molyneux's question.
• To identify fundamental challenges in assessing cross-modal recognition in newly sighted individuals, particularly the role of rational inference.

Main Methods:

• Critique of existing experimental paradigms for Molyneux's question.
• Analysis of the impact of visual acuity adjustments on cross-modal recognition tasks.
• Consideration of the role of rational inference in newly sighted subjects' perception.

Main Results:

• Previous empirical findings on Molyneux's question are inconclusive.
• Proposed modifications, such as lowering visual demands, may not adequately address the core issue.
• The influence of rational inference in cross-modal spatial property recognition is potentially underestimated.

Conclusions:

• Rectifying studies on Molyneux's question faces significant hurdles beyond simple visual adjustments.
• The role of rational inference in cross-modal perception for the newly sighted is a critical factor that needs further investigation.
• Current experimental designs may inadvertently confound the assessment of innate cross-modal recognition abilities.