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Brain Sci. 2016, 6(1), 10;

Multistable Perception in Older Adults: Constructing a Whole from Fragments

Department of Psychology, Ryerson University, Toronto, ON M5B 2K3, Canada
Authors to whom correspondence should be addressed.
Academic Editor: Zhong-Lin Lu
Received: 29 January 2016 / Revised: 7 March 2016 / Accepted: 15 March 2016 / Published: 22 March 2016
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Visual perception is constructive in nature; that is, a coherent whole is generated from ambiguous fragments that are encountered in dynamic visual scenes. Creating this coherent whole from fragmented sensory inputs requires one to detect, identify, distinguish and organize sensory input. The organization of fragments into a coherent whole is facilitated by the continuous interactions between lower level sensory inputs and higher order processes. However, age-related declines are found in both neural structures and cognitive processes (e.g., attention and inhibition). The impact of these declines on the constructive nature of visual processing was the focus of this study. Here we asked younger adults, young-old (65–79 years), and old-old adults (80+ years) to view a multistable figure (i.e., Necker cube) under four conditions (free, priming, volition, and adaptation) and report, via a button press, when percepts spontaneously changed. The oldest-olds, unlike young-olds and younger adults, were influenced by priming, had less visual stability during volition and showed less ability to adapt to multistable stimuli. These results suggest that the ability to construct a coherent whole from fragments declines with age. More specifically, vision is constructed differently in the old-olds, which might influence environmental interpretations and navigational abilities in this age group. View Full-Text
Keywords: multistable perception; visual perception; optical illusions; cognition; aging multistable perception; visual perception; optical illusions; cognition; aging

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Patel, K.; Reed, M. Multistable Perception in Older Adults: Constructing a Whole from Fragments. Brain Sci. 2016, 6, 10.

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