[Comparative analysis of light sensitivity, depth and motion perception in animals and humans].

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  • Author(s): Schaeffel F;Schaeffel F
  • Source:
    Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft [Ophthalmologe] 2017 Nov; Vol. 114 (11), pp. 997-1007.
  • Publication Type:
    Comparative Study; Journal Article; Review
  • Language:
    German
  • Additional Information
    • Transliterated Title:
      Vergleichende Betrachtung von Lichtempfindlichkeit, Tiefenwahrnehmung und Bewegungswahrnehmung bei Tier und Mensch.
    • Source:
      Publisher: Springer-Verlag Country of Publication: Germany NLM ID: 9206148 Publication Model: Print Cited Medium: Internet ISSN: 1433-0423 (Electronic) Linking ISSN: 0941293X NLM ISO Abbreviation: Ophthalmologe Subsets: MEDLINE
    • Publication Information:
      Original Publication: Berlin ; New York : Springer-Verlag, c1992-
    • Subject Terms:
      Depth Perception*/physiology ; Motion Perception*/physiology ; Photophobia* ; Species Specificity*; Accommodation, Ocular/physiology ; Animals ; Body Temperature/physiology ; Body Weight/physiology ; Distance Perception/physiology ; Energy Metabolism ; Flicker Fusion/physiology ; Humans ; Insecta ; Invertebrates ; Photoreceptor Cells/physiology ; Retinal Ganglion Cells/physiology ; Retinal Rod Photoreceptor Cells/physiology ; Vertebrates
    • Abstract:
      Background: This study examined how humans perform regarding light sensitivity, depth perception and motion vision in comparison to various animals.
      Objective: The parameters that limit the performance of the visual system for these different functions were examined.
      Methods: This study was based on literature studies (search in PubMed) and own results.
      Results: Light sensitivity is limited by the brightness of the retinal image, which in turn is determined by the f‑number of the eye. Furthermore, it is limited by photon noise, thermal decay of rhodopsin, noise in the phototransduction cascade and neuronal processing. In invertebrates, impressive optical tricks have been developed to increase the number of photons reaching the photoreceptors. Furthermore, the spontaneous decay of the photopigment is lower in invertebrates at the cost of higher energy consumption. For depth perception at close range, stereopsis is the most precise but is available only to a few vertebrates. In contrast, motion parallax is used by many species including vertebrates as well as invertebrates. In a few cases accommodation is used for depth measurements or chromatic aberration. In motion vision the temporal resolution of the eye is most important. The ficker fusion frequency correlates in vertebrates with metabolic turnover and body temperature but also has very high values in insects. Apart from that the flicker fusion frequency generally declines with increasing body weight.
      Conclusion: Compared to animals the performance of the visual system in humans is among the best regarding light sensitivity, is the best regarding depth resolution and in the middle range regarding motion resolution.
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    • Contributed Indexing:
      Keywords: Eye; Flicker fusion frequency; Invertebrates; Vertebrates; Visual system
    • Publication Date:
      Date Created: 20170921 Date Completed: 20181113 Latest Revision: 20181113
    • Publication Date:
      20221213
    • Accession Number:
      10.1007/s00347-017-0568-x
    • Accession Number:
      28929348