ERIC Number: ED100978
Record Type: RIE
Publication Date: 1972-Sep
Reference Count: 0
The Acquisition of Visual Information. Final Report.
Craig, Eugene A.
Two important processes in the acquisition of visually presented information are the ability to maintain discrete perceptual events as separate in time and the ability to abstract information from brief exposures. Five phenomena were measured which appear to reflect these abilities. Critical Flicker Frequency (CFF) is the intermittency rate at which flashes of light fuse to yield the visual sensation of continuous light. Temporal Numerosity is a measure obtained when a specific number of flashes are exposed at a given rate and the number reported is compared with the number presented. Spatial Numerosity involves estimates of the number of dots in a briefly exposed pattern. Word Recognition involves recognizing five letter words that are briefly exposed. Temporal Integration involves presenting two halves of words or pictures in succession. The task is to combine them into a unitary whole. Eleven subjects were tested. Some subjects were consistently superior, others inferior, on these tasks. Some showed inconsistent results. Two correlations were significant at the .05 level: CFF versus Temporal Integration (rho .70) and Temporal Integration versus Temporal Numerosity (rho .63). All others were insignificant. It was suggested that CFF, Temporal Numerosity and Temporal Integration be investigated in relation to reading skills. (Author)
Publication Type: Reports - Research
Education Level: N/A
Sponsor: Office of Education (DHEW), Washington, DC. Regional Research Program.
Authoring Institution: N/A
Note: Not available in hard copy due to marginal legibility of original document