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内容記述 |
It seems obvious to lay people that neurotypical humans experience colour equivalently across their entire visual field. To some neuroscientists, psychologists and philosophers though, this claim has been met with skepticism, as neurophysiological evidence indicates the mechanisms that support colour perception degrade with eccentricity. However, the argument that this entails altered colour experience in peripheral vision is not universally accepted. Here, we address whether colour experience is essentially equivalent between central and peripheral vision. To assess this, we will obtain similarity relationships between colour experiences across the visual field using both online and laboratory-based far-field displays, while removing the confounds of saccades, memory and expectation about colour experiences. Our experiment was designed to provide clear evidence that would favour either unchanged or altered color experience relationships in the periphery. Our results are consistent with lay people’s phenomenological reports: colour experiences, as probed by similarity relationships in central vision and the far field(60°), are equivalent when elicited by large stimuli. These findings challenge the widespread view in philosophy and cognitive science that peripheral colour experiences are illusory, and are 34discussed in the context of their related neurophysiological, psychophysical and philosophical literature. |
