Visual fixation stability in older adults.
نویسندگان
چکیده
Visual fixation of a small, stationary target was measured in 12 young observers (mean age = 22 yr) and in 12 older observers (mean age = 70 yr). The two groups' fixation behavior did not differ on various dimensions of fixation stability: mean fixation area, intra-subject variability, or changes in fixation over successive test periods. Connections between these results and age-related changes in the oculomotor system are discussed.
منابع مشابه
Effect of Different Cognitive Loads on Gait Stability in Younger and Older Adults
Purpose: As many older people fall during dual tasks, we aimed to examine the effect of different cognitive loads on learning gait stability in younger and older adults. Methods: 10 younger (Mean±SD age: 25.91±3.42 years) and 10 older adults (Mean±SD: 66.65±4.28 years) were healthy volunteers without a history of falls. They were asked to do three tasks on a treadmill with cognitive load (none...
متن کاملRepeated Measurement of the Components of Attention of Older Adults using the Two Versions of the Attention Network Test: Stability, Isolability, Robustness, and Reliability
Ishigami and Klein (2010) showed that scores of the three attention networks (alerting, orienting, and executive control) measured with the two versions of the Attention Network Test (ANT; Fan et al., 2002; Callejas et al., 2005) were robust over 10 sessions of repeated testing even though practice effects were consistently observed especially in the executive network when young adults were tes...
متن کاملASSESSMENT OF PHYSICAL FUNCTIONING AND ITS CORRELATES IN ADULTS 50 YEARS AND OLDER IN BUKAN, NORTHWEST OF IRAN; A CROSS-SECTIONAL STUDY
Background & Aims: Aging is associated with gradual erosive changes in the physiological function of many systems of the body. Ths study aimed to examine the physical functioning and limitation and its related factors in people aged 50 and older in Bukan, 2017. Materials & Methods: In this cross-sectional study 1201 elderly people aged 50 years and up were recruited from health recentres in Bu...
متن کاملDesign and Psychometric Evaluation of the Older Adults' Place Attachment Instrument
Objectives: Due to the importance of place attachment in the older adults, it seems necessary to identify the older adults' perception of this concept and its dimensions due to their special emotions, conditions and needs. Therefore, present study aimed to design and psychometrics the instrument of older adults' place attachment. Materials and Methods: The present research is a mixed method st...
متن کاملAre preferences in emotional processing affected by distraction? Examining the age-related positivity effect in visual fixation within a dual-task paradigm.
Recent research has suggested that age-related positivity effects are eliminated under conditions of dual-task load (Knight et al., 2007, Emotion, 7, 705; Mather & Knight, 2005, Psychology and Aging, 20, 554), because the cognitive control resources necessary to enact such preferences are not available when individuals are distracted by competing information. We further examined how older adult...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Investigative ophthalmology & visual science
دوره 27 12 شماره
صفحات -
تاریخ انتشار 1986