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Multistable Perception in Older Adults: Constructing a Whole from Fragments
1Department of Psychology, Ryerson University, Toronto, ON M5B 2K3, Canada. khushi.patel@psych.ryerson.ca.
Brain Sciences
|March 25, 2016
Summary
Visual perception construction declines with age. Older adults (80+) showed reduced visual stability and adaptability, impacting how they interpret scenes.
Area of Science:
- Cognitive Neuroscience
- Gerontology
- Visual Perception
Background:
- Visual perception constructs coherent scenes from fragmented input.
- Age-related declines affect neural and cognitive processes, potentially impacting visual construction.
- Understanding these age-related changes is crucial for interpreting environmental interactions.
Purpose of the Study:
- To investigate how age-related cognitive and neural declines affect the constructive nature of visual perception.
- To compare visual processing in younger adults, young-old (65-79), and old-old (80+) adults.
Main Methods:
- Participants viewed a Necker cube (multistable figure) under four conditions: free, priming, volition, and adaptation.
- Participants reported spontaneous changes in perception via button press.
- Performance was compared across age groups.
Main Results:
- Old-old adults were more susceptible to priming effects compared to younger groups.
- The oldest-old group exhibited less visual stability during volition tasks.
- Older adults demonstrated reduced ability to adapt to multistable visual stimuli.
Conclusions:
- The ability to construct a coherent visual whole from fragmented information declines with age.
- Visual processing is altered in very old adults, potentially affecting navigation and environmental interpretation.
- These findings highlight age-related differences in visual perception construction.
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