title: Dark adaptation and increment threshold in rhesus monkey and man.
abstract: Dark adaptation and increment thresholds were determined for a trained rhesus monkey and a human observer under identical conditions. The measurements were made with a 1.5' diameter, 100 ms target at 10 degrees and 40 degrees eccentricity along the temporal horizontal meridian. Qualitatively, the results are similar for the two species: Both rhesus monkey and man have photopic and scotopic branches, which cross at approximately the same time in the dark and at approximately the same background luminance.
authors.affiliation: Neurologische Universitätsklinik, Freiburg, Federal Republic of Germany.
authors.forename: R
authors.initials: R
authors.lastname: Oehler
authors.forename: L T
authors.initials: LT
authors.lastname: Sharpe
mesh_terms: D000222:Adaptation, Physiological; D000328:Adult; D000818:Animals; D003624:Darkness; D005260:Female; D006801:Humans; D008251:Macaca / Q000502:physiology*; D008253:Macaca mulatta / Q000502:physiology*; D010775:Photic Stimulation; D012160:Retina / Q000502:physiology*; D012684:Sensory Thresholds; D014796:Visual Perception / Q000502:physiology*