Some relationships between the psychophysics and neurophysiology of color vision

Research output: Contribution to journalArticlepeer-review


Determining a neurophysiology code for color from single cell studies meets with some difficulty, because most visual neurons in primates change their activity as a result of a change in stimulus intensity, spectral composition, form or position. It is argued in the present paper that the activity of a single neuron cannot be considered as the neural representation of a stimulus, but instead, stimulus encoding must be viewed in terms of the relative amounts of neural activity produced in many parallel neurons at various stages of the visual pathway. This “across-neuron pattern” code for color is used to account for color sensations and bue discriminations in normal trichromats and dicbromats. The neural basis of brightness and saturation are all discussed.

Original languageEnglish (US)
Pages (from-to)550-566
Number of pages17
JournalOptometry and Vision Science
Issue number8
StatePublished - Aug 1974

ASJC Scopus subject areas

  • Ophthalmology
  • Optometry


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