Mechanisms of Perception: Hearing, Touch, Smell, Taste and Attention - Auditory System - From Ear to the Primary Auditory Cortex

4 important questions on Mechanisms of Perception: Hearing, Touch, Smell, Taste and Attention - Auditory System - From Ear to the Primary Auditory Cortex

Our visual system is not equally sensitive to all wavelengths. What does this mean?

It means that light of different wavelengths but shone with the same intensity can appear differently in brightness. A graph of brightness between wavelengths is called a 'Spectral Sensitivity Curve'. 

How can the photopic spectral sensitivity curve be determined?

To shine light upon the fovea, from different wavelengths but the same intensity. 

What is wavelength where the scotopic system has maximal sensitivty?

500 nm
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How is this effect called, where the scotopic and photopic visions have different optimum sensitivity curves?

Purkinje effect

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