Accession Number : AD0630475

Title :   PROBLEMS RELATED TO VISUAL PERFORMANCE OF PILOTS.

Descriptive Note : Annual summary rept. 1 Dec 64-30 Nov 65,

Corporate Author : ISTITUTO NAZIONALE DI OTTICA FLORENCE (ITALY)

Personal Author(s) : Fiorentini,Adriana ; Ronchi,Lucia

Report Date : 20 DEC 1965

Pagination or Media Count : 112

Abstract : The report is divided into four sections. The first section is devoted to the study of (1) the small eye movements during voluntary monocular fixation of a bright point in a completely dark field, and of the determiners of these movements, (2) the autokinetic movements of the point and their possible relationships with the eye movements and (3) the perceived direction of a bright point as a function of retinal locus. Fixation of a point fixed in the visual field is compared with fixation of a point whose image is stabilized on the retina and with attempted fixation in the dark. The second part deals with some aspects of the perception of light signals. The third part deals with the reliability of electroretinographic response, in relation to changes in recording resistance, influence to previous exposure to sunlight, and lack of centrifugal control. In the fourth session the response of the eye to a step pattern of illumination is described in terms of the increment threshold for a small light patch added to the pattern at various distances from the illumination step. (Author)

Descriptors :   (*PILOTS, VISUAL PERCEPTION), RETINA, VISION, ADAPTATION(PHYSIOLOGY), ITALY, RELIABILITY, LIGHT

Subject Categories : Psychology
      Personnel Management and Labor Relations

Distribution Statement : APPROVED FOR PUBLIC RELEASE