Aging and the detection of moving objects defined by common fate.

Autor: Norman JF; Department of Psychological Sciences, Ogden College of Science and Engineering, Western Kentucky University, 1906 College Heights Blvd. #22030, Bowling Green, KY, 42101-2030, USA. farley.norman@wku.edu.; Center for Applied Science in Health and Aging, Western Kentucky University, Bowling Green, KY, 42101-2030, USA. farley.norman@wku.edu., Baig M; Department of Psychological Sciences, Ogden College of Science and Engineering, Western Kentucky University, Bowling Green, KY, 42101-2030, USA., Graham JD; Carol Martin Gatton Academy of Mathematics and Science, Bowling Green, KY, USA., Lewis JL; Department of Psychological Sciences, Ogden College of Science and Engineering, Western Kentucky University, 1906 College Heights Blvd. #22030, Bowling Green, KY, 42101-2030, USA.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2022 Dec 02; Vol. 12 (1), pp. 20811. Date of Electronic Publication: 2022 Dec 02.
DOI: 10.1038/s41598-022-25456-z
Abstrakt: Grouping by common fate plays an important role in how human observers perceive environmental objects. In this study, the effect of aging upon the ability to utilize common fate was evaluated. Twenty-two younger and older adults (mean ages were 23.4 and 74.7 years, respectively) participated in two experiments. On any given trial, the participants sequentially viewed two apparent motion sequences and were required to indicate which temporal interval contained a coherently moving dotted line embedded in noisy random background motion. In Experiment 1, the number of dots defining the target was varied, while in Experiment 2, the target interpoint spacing was varied. The younger adults outperformed the older adults by 19.4 percent in Experiment 1 and 50.5 percent in Experiment 2. The older and younger adults were similarly affected by variations in the number of target dots and the target interpoint spacing. The individual older participants' object detection accuracies were highly correlated with their individual chronological ages, such that the performance of the younger old participants was much higher than that exhibited by the older old. Increases in age systematically affect the ability of older adults to detect and visually perceive objects defined by common fate.
(© 2022. The Author(s).)
Databáze: MEDLINE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje